Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2024 01:20

General

  • Target

    c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe

  • Size

    395KB

  • MD5

    c80ff23194e04bab4f4745a8d7370f67

  • SHA1

    fad8a0cc13cf3cb7dfef6b83afe9a257ca2e9588

  • SHA256

    c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac

  • SHA512

    42ede1ed76c0de03b4c8481f0ac938490b4f2982982b5162c0c7c29b150ba5ed7f63094c3829ad8ee6af348f8d3d6a704e395e6dd4b6bd639bd16b4f09b5d8ed

  • SSDEEP

    12288:JEyDMhqhDtvOS1aeC8arI2BYC+N6kJU5TGADxxLf1:JBD0S1akadYC+Uky5Tx3L9

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 18 IoCs
  • UPX dump on OEP (original entry point) 21 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 21 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 18 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\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe
    "C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.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:1100
    • C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe
      "C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4472
      • C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe
        "C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1568
    • C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe
      "C:\Users\Admin\AppData\Local\Temp\c771f41c037acef1afa0d88479474f76c51fe61a1593807ea54c0c5a11af06ac.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\porn gang bang big ash .zip.exe

    Filesize

    614KB

    MD5

    2e54ca0e6c106d637a69c43c27d6770e

    SHA1

    3450b98e4f3696436eed803778e8848b234f48d3

    SHA256

    a585522be5c98f0870651fa9320761dbf8887ece9f09cf4c7d5d9343f161727f

    SHA512

    a2d674cf0f382d451b5e25e067e4ab71841f278fd27ec282ca158e5f0a86fb07671b4e2b02e972986614fc42321fdb92882b33d0e1de57e4ccd370a8f5785c45

  • memory/1100-234-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-230-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-188-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-158-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-251-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-192-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-242-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-205-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-255-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-247-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-187-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-210-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-216-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-238-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1100-0-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1568-186-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1828-185-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1828-40-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4472-23-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4472-167-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB