Trojan.Stealer.UB
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 10,556 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 1,565 |
| First Seen: | September 2, 2021 |
| Last Seen: | March 7, 2026 |
| OS(es) Affected: | Windows |
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.Stealer.UB |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a75278f4a91997a827a34a52a3bd8f46
SHA1:
74625faf4d8e67f8d09c79bafe10cd5e6a6c7689
SHA256:
3BBDC8F264E816B66C3DC55771BA02FEC24E504C07FE23539242B37AD5C14FFD
File Size:
5.70 MB, 5702640 bytes
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MD5:
766421818a7e8a3657ae088698ad0e44
SHA1:
4eceeaa98fdf2fac5070695bb7dbda2f8ee62f14
SHA256:
800962E0F13611C1197C54A2FCFA5DC24F42ECA4A6E8081A73638AE6E6380CD0
File Size:
5.70 MB, 5702640 bytes
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MD5:
22907101c5987476015955e879ec816d
SHA1:
d4708d80658c1a118652f05a153cdd5f68f20173
SHA256:
A68444F673255A2E11581166E2A2251AEA98BEFB37ECB13A3432180A06816DAD
File Size:
4.90 MB, 4895744 bytes
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MD5:
62defe5a99b589fea24f8fd8e6be5074
SHA1:
f56ae64afc4a939f384052fb9f5ae32892870415
SHA256:
AFED751CE662A42ACB0D42957CEEE56688774F56EE1BA2DA2B1C21C5878A5874
File Size:
6.12 MB, 6115328 bytes
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MD5:
27662ef27c6727721570f9c318f5e6c9
SHA1:
6aef417f2ec14f43ea15f1858782d01e344d1520
SHA256:
C3B2D2F7BB46F6C68BD4E61973AE8D0C924A421C304AD1011DDD11234F780031
File Size:
4.04 MB, 4038817 bytes
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Show More
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MD5:
94c4ec8e965ca2a723dc628cd7e34315
SHA1:
9e998234041cae4e69054963c64c4f5c936ee654
SHA256:
9504A2F6BC8C5FC0B16ED0C85D61A1D54EDC15379ADF18FB1B58F11F84BC45BD
File Size:
6.57 MB, 6573056 bytes
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MD5:
d2137fdc01a3322547c8a289de956cf0
SHA1:
ea5049d13f7edfc5ea95cd5bb51d84c7b7261794
SHA256:
FD10A4711483C47749F9F1B763B9EFAA237F2E5AF1B2250A5B9B959AAF59361F
File Size:
6.23 MB, 6230696 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations information
- File doesn't have security information
- File is 32-bit executable
- 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
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
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 |
|---|---|
| Assembly Version |
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| Comments | Taxware Software Auto Patcher |
| Company Name | Taxware Systems, Inc |
| File Description |
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| File Version |
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| Internal Name |
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| Legal Copyright |
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| Original Filename |
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| Product Name |
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| Product Version |
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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 |
|---|---|---|
| Pearl abyss Corp | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 | Self Signed |
| TAXWARE SYSTEMS, INC. | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 | Self Signed |
| Pearl abyss Corp | DigiCert Trusted Root G4 | Root Not Trusted |
File Traits
- 2+ executable sections
- HighEntropy
- themida
- themida section variant
- 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: | 6 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 2 |
| Unknown Blocks: | 4 |
Visual Map
?
?
?
0
?
0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Stealer.UB
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| \device\harddisk0\dr0 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\programdata\mntemp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\taxwareautopatcherv2.err.log | Generic Write,Read Attributes |
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 |
|---|---|
| User Data Access |
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| Encryption Used |
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| Anti Debug |
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