Backdoor.Agent.YTF
Table of Contents
Analysis Report
General information
| Family Name: | Backdoor.Agent.YTF |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
79bc1cebffd56277d327e8e13201919c
SHA1:
ba62dc2cd3741443c054af203703c93457485890
SHA256:
2E78FAA5149BA2475FDF3E36A3C54E4AD35C892BE6BE5CC49A1774EBCF761C12
File Size:
4.53 MB, 4525112 bytes
|
|
MD5:
8ecba99db784745a13532aeb0c63c5b6
SHA1:
16c83ac8a34ae33c6e256ee54f293034845d8488
SHA256:
CB0D9875C399152991935581207B9B742762EE282171A28572676C9896A5712F
File Size:
4.75 MB, 4745608 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File has exports table
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | Microsoft Corporation |
| File Description |
|
| File Version |
|
| Internal Name |
|
| Legal Copyright | © Microsoft Corporation. All rights reserved. |
| Original Filename |
|
| Product Name |
|
| Product Version |
|
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| Microsoft Corporation | Microsoft Code Signing PCA 2011 | Hash Mismatch |
| Tencent Technology(Shenzhen) Company Limited | VeriSign Class 3 Public Primary Certification Authority - G5 | Hash Mismatch |
File Traits
- 2+ executable sections
- dll
- HighEntropy
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 16,519 |
|---|---|
| Potentially Malicious Blocks: | 535 |
| Whitelisted Blocks: | 5,385 |
| Unknown Blocks: | 10,599 |
Visual Map
?
?
0
?
?
?
?
?
x
?
?
?
?
?
x
0
?
?
?
?
?
0
0
?
0
?
?
?
0
?
?
?
?
?
?
?
?
?
?
?
?
0
?
?
?
?
x
0
?
0
?
?
?
?
?
?
?
?
?
?
?
x
?
?
?
x
?
?
?
0
?
?
x
?
x
0
?
x
?
?
?
0
0
0
0
0
0
?
0
0
0
?
?
?
0
0
?
?
?
?
0
?
?
?
?
?
?
?
?
?
?
0
0
0
?
?
0
?
0
?
?
?
?
0
?
0
?
?
?
0
0
?
?
?
?
0
0
?
?
?
?
0
0
0
?
?
?
?
0
?
0
?
0
0
0
?
?
0
0
?
0
?
?
?
?
0
0
?
?
?
?
?
?
?
?
0
?
?
?
0
0
0
?
?
?
?
?
?
0
?
?
?
?
?
?
0
?
?
?
?
?
?
0
0
0
0
?
?
?
0
?
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
0
?
?
?
?
0
?
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
?
0
?
0
?
0
?
?
0
?
0
?
?
?
?
?
0
?
?
?
0
?
?
?
?
?
?
?
?
0
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
?
?
?
0
?
?
0
0
0
?
?
0
?
?
?
?
?
0
?
?
0
?
?
0
?
?
0
0
0
?
0
0
?
0
0
?
?
0
?
?
?
?
0
?
?
0
0
?
0
?
0
?
?
?
?
?
?
1
?
x
?
?
0
?
0
?
?
?
?
?
?
?
?
?
0
?
?
?
?
?
?
?
0
?
?
?
0
?
?
0
0
?
?
?
?
?
?
0
?
0
0
?
?
?
?
?
?
0
?
?
0
?
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
0
?
?
?
?
?
0
0
?
?
0
0
?
0
0
0
0
0
?
0
?
0
?
?
?
0
0
0
?
?
?
?
0
0
0
?
?
?
?
?
0
0
0
0
0
0
?
?
?
0
?
0
?
?
0
0
?
?
?
0
?
?
?
?
?
?
?
?
?
0
?
0
?
?
0
?
?
?
0
?
0
0
0
?
0
?
?
?
0
0
?
?
?
?
?
0
?
?
0
0
?
?
?
0
0
?
0
?
?
?
?
0
?
?
?
?
?
0
?
0
0
0
0
?
?
?
0
0
0
?
?
?
?
?
0
0
?
?
?
?
?
?
0
?
?
?
0
?
0
?
0
?
?
0
0
?
?
?
?
?
?
?
?
?
0
0
?
?
?
?
0
0
?
?
?
0
?
?
?
?
?
0
?
?
0
?
?
?
?
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
0
?
0
0
?
?
?
0
0
?
0
0
?
0
?
?
0
0
?
0
0
0
0
?
0
0
0
0
?
?
0
0
?
?
0
0
0
1
0
0
1
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
?
?
0
0
1
0
?
?
0
0
2
?
?
0
0
x
?
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
?
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
1
0
?
1
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
0
?
?
?
0
?
?
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
?
?
0
?
1
0
0
0
0
x
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
?
?
0
?
1
1
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
x
0
?
0
0
x
0
0
0
?
0
?
0
?
?
0
?
0
?
0
?
0
0
0
0
0
0
0
0
0
2
x
0
0
0
?
0
0
0
0
0
?
0
?
?
0
0
0
0
0
0
0
x
0
0
0
0
0
0
?
0
0
?
?
x
0
0
0
2
0
0
0
0
0
?
?
0
0
0
0
?
x
0
?
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
x
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
x
0
0
2
0
0
0
0
0
0
0
?
0
0
0
0
0
0
?
?
?
0
x
0
0
?
0
0
?
0
?
0
?
0
0
?
?
?
x
x
x
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
x
2
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
?
0
0
0
0
?
?
x
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
?
0
0
0
0
0
?
0
0
0
0
0
0
0
0
0
0
?
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
x
0
0
0
0
0
0
0
0
0
0
0
0
0
?
0
?
0
?
0
0
?
0
0
0
0
0
?
?
?
0
0
?
0
0
0
?
?
?
?
0
0
0
?
?
?
0
?
0
0
?
?
0
?
0
0
0
?
0
?
?
?
0
0
?
0
0
0
?
0
0
?
0
0
0
?
?
?
?
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
?
?
?
?
?
?
?
?
?
?
0
0
?
0
0
0
?
?
?
?
?
0
0
?
0
0
0
0
0
?
?
?
?
0
0
?
0
0
0
0
0
0
?
?
?
0
?
0
0
?
?
?
?
?
?
?
?
?
?
?
0
?
0
?
?
?
?
?
?
0
0
0
0
0
0
?
?
?
?
?
?
0
?
?
?
?
?
0
?
?
?
?
0
?
?
0
0
?
x
0
0
?
0
?
?
?
?
?
?
?
?
?
?
?
0
?
?
?
0
0
0
0
0
0
0
0
0
0
0
0
?
?
?
0
0
?
?
?
0
0
?
?
?
?
0
0
0
0
?
?
0
0
?
0
0
0
0
0
0
?
?
?
?
?
0
?
?
?
?
0
?
0
?
?
?
?
?
0
0
?
?
0
0
0
?
?
?
?
?
?
?
?
0
?
0
?
?
0
?
?
?
0
0
?
0
?
0
?
?
?
?
?
?
?
?
0
0
0
0
0
?
0
?
?
0
0
0
?
?
?
0
0
?
?
0
0
?
?
0
?
0
?
?
?
?
?
?
0
?
0
0
?
?
?
?
?
?
?
?
0
?
?
?
?
?
?
?
?
0
?
?
?
?
?
?
0
0
0
?
0
0
?
0
0
?
?
?
0
?
?
?
?
?
0
?
?
0
0
0
?
?
?
?
0
?
?
?
?
0
0
0
0
?
0
0
0
?
0
?
?
?
?
0
?
0
?
0
0
?
?
0
?
0
0
?
?
?
?
0
0
0
?
0
?
0
?
?
?
?
?
?
?
?
?
?
?
?
0
0
0
0
?
0
?
?
?
0
?
?
?
?
?
0
0
0
0
0
?
?
?
?
?
?
?
?
?
?
?
0
?
0
?
0
0
0
0
0
?
?
0
0
0
?
?
0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
0
0
0
?
0
?
?
?
0
?
0
0
0
?
0
0
0
?
0
0
?
0
0
0
?
0
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...
Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
Show More
|
| Process Shell Execute |
|
| Anti Debug |
|
| Process Manipulation Evasion |
|
Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\ba62dc2cd3741443c054af203703c93457485890_0004525112.,LiQMAxHB
|
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\16c83ac8a34ae33c6e256ee54f293034845d8488_0004745608.,LiQMAxHB
|
