Analysis

  • max time kernel
    159s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 20:05

General

  • Target

    3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe

  • Size

    128KB

  • MD5

    8b48fbf5dcefba2a141f43e595111bf7

  • SHA1

    b857b81adb0e77fc40cbc5c2987e4909b211b1bc

  • SHA256

    3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757

  • SHA512

    c95dbcdc560450690e8630d2215f420377c2bdd38b42a86e205c3b31038eb1bdfd955d22d49d60224f8da9979072bc190dfa4540a2a45f29345367bcf757a1c5

  • SSDEEP

    3072:Dvs4dDXEGCLElz1Tj4mYWR/R4nkPR/1aVowVunF58s+vt:bPDLCL4Io5R4nM/4rVmbh+vt

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe
    "C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe
      "C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4316
      • C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe
        "C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2608
    • C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe
      "C:\Users\Admin\AppData\Local\Temp\3785c48f0d4ca3ac00bf9fa651e3dba57198b8591e7d2267d77c6138dc2a1757.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\malaysia horse hot (!) leather (Anniston).avi.exe

    Filesize

    2.0MB

    MD5

    f1cbaa8aec71c748e57a9e1ccb110e0f

    SHA1

    4371db57e321a0c969993df86d6b5af1d770cc9a

    SHA256

    e416ebe36e0785b833adbaae6dd55bfe61be3437986f426e3d8a863f4de994c0

    SHA512

    ac6940a3aba60e42295d87ad2549c03ee771ff557084b08ef9c9e9ab9808b482b27dd0f9f3c09f07f3ffe30524bfa9eafcc8f16c6b5b95873c61d95d74a3d3da

  • memory/1684-18-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/1684-181-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2608-17-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2608-180-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4316-10-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4316-168-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/5004-0-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/5004-106-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB