Threat Database Trojans Trojan.MSIL.Krypt.AG

Trojan.MSIL.Krypt.AG

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 12,933
Threat Level: 80 % (High)
Infected Computers: 331
First Seen: August 30, 2021
Last Seen: September 8, 2025
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.AG
Signature status: No Signature

Known Samples

MD5: c68902ffada9d3ee64bf9cc9e5ae5c45
SHA1: 7ff5cde45973c0329abd1f72eb72bc517eaafeca
File Size: 374.27 KB, 374272 bytes
MD5: ef3991abcee79c6be999b7e0b91f9c0c
SHA1: 9ee6d3d9efe374ca304b01df1c66240b892878f8
SHA256: A223279542635EDF91DF840D0338A0DAD6BD1EB9FBE9220209299854CEC82227
File Size: 215.04 KB, 215040 bytes
MD5: f69446f1f30a8e181a51557d3c89a7c5
SHA1: 37ce56375cc84f09c7c81966c79f0c7f838fbd04
SHA256: 0A05EAD526C5CCEEBAE430D159704F2CFC987A5F43A5E80BEC3D051BD293E417
File Size: 219.65 KB, 219648 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Assembly Version
  • 8.0.0.0
  • 1.5.231.299
Company Name
  • Chrysanth Software Sdn. Bhd.
  • MainApp
  • TutorSoft
File Description
  • Chrysanth Cheque Writer
  • MainApp
  • TS.Win.DrawDownLoad
File Version
  • 28.1.281.971
  • 8.0.0.0
  • 1.5.231.299
Internal Name
  • Chrysanth Cheque Writer
  • MainApp.dll
  • TS.Win.DrawDownLoad.exe
Legal Copyright
  • Copyright (C) 2012-2023 Chrysanth (R) Software Sdn. Bhd. All rights reserved.
  • Copyright © Microsoft 2015
Legal Trademarks Chrysanth (R) Cheque Writer
Original Filename
  • CSCheckWriter.exe
  • MainApp.dll
  • TS.Win.DrawDownLoad.exe
Product Name
  • Chrysanth (R) Cheque Writer
  • MainApp
  • TS.Win.DrawDownLoad
Product Version
  • 28.1
  • 8.0.0.0
  • 1.5.231.299+52f26fd15097a377e8b90683cbba0e5605486df4

File Traits

  • .NET
  • GenKrypt
  • HighEntropy
  • Reactor
  • RijndaelManaged
  • x86

Block Information

Total Blocks: 33
Potentially Malicious Blocks: 1
Whitelisted Blocks: 10
Unknown Blocks: 22

Visual Map

? 0 ? ? ? ? ? ? ? 0 0 0 ? ? ? ? 0 ? ? ? ? ? ? 0 ? x 0 ? ? 0 ? 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
Show More
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
Encryption Used
  • BCryptOpenAlgorithmProvider

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