Analysis

  • max time kernel
    73s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2024 09:00

General

  • Target

    rFACTURASALBARANESPENDIENTES.exe

  • Size

    531KB

  • MD5

    07ee6bc3f0ca6f6a5b7d0b9824a79cbf

  • SHA1

    3701b4dc923b624576038d327753580f768cfae0

  • SHA256

    acbd111f6e01f7a02777bf50b95d61a352d476f031e7421f1fb356454a81e4e2

  • SHA512

    5b90d27ca78c37aa7fd11ef225bf51a49be067c3d1c54b849b43d6f7d4902419cd769f6a42ea7166cab9624ec8ec6c9a90e24a763a866c4adb1ff7b1d8833428

  • SSDEEP

    12288:GAj/s0yek+BBlUVh+Z0D8MWoftBOMTCD8ztwerE6H1nN:5a07UtYAFJe9qZ

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7854764352:AAGsvrx8n7ByYi4c9ksbK9NcQWi81dzmeE8/sendMessage?chat_id=7894030394

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 IoCs
  • Snakekeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rFACTURASALBARANESPENDIENTES.exe
    "C:\Users\Admin\AppData\Local\Temp\rFACTURASALBARANESPENDIENTES.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\rFACTURASALBARANESPENDIENTES.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fVPvzzxLd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2964
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fVPvzzxLd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B1D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1684
    • C:\Users\Admin\AppData\Local\Temp\rFACTURASALBARANESPENDIENTES.exe
      "C:\Users\Admin\AppData\Local\Temp\rFACTURASALBARANESPENDIENTES.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3B1D.tmp

    Filesize

    1KB

    MD5

    4ac039539b19ee2207a57c88689d6335

    SHA1

    638fd7c82affb44eea84a6f9f3c085c429910ecc

    SHA256

    f2d5492509903b24a90be5665f9a04bfb531f7be499760711062c38a114b924e

    SHA512

    4e3946460dbf4f092a1cefff0efb2a59bf9d543f2a536a546b7d8fa4a11889a94c0666172eb8383fa22db4d20a8001f902d7d540f5ce339e6cd777f79795edaa

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BYBJUFLNB54IBPS4X7Q4.temp

    Filesize

    7KB

    MD5

    25657de8d0c8dbf4976c3bb705102eae

    SHA1

    5a0b310274d5c3a3e440ca5d256e9fa05f07e90e

    SHA256

    af6df3b677ef2c7f798397b078e2f16642070e9762450ffbb0f1ca485a9445e8

    SHA512

    0d6d478d197dfcb98d2e5eab16243b380cdf33a00676b43aa86f64951f31538412cb4beab6ee6a3fb10bd38189bed1604545ffe5424d614edae525596b298682

  • memory/2076-4-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-31-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

    Filesize

    4KB

  • memory/2076-5-0x0000000000350000-0x0000000000362000-memory.dmp

    Filesize

    72KB

  • memory/2076-6-0x0000000004780000-0x00000000047EC000-memory.dmp

    Filesize

    432KB

  • memory/2076-2-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-1-0x0000000000AC0000-0x0000000000B4A000-memory.dmp

    Filesize

    552KB

  • memory/2076-3-0x00000000744EE000-0x00000000744EF000-memory.dmp

    Filesize

    4KB

  • memory/2168-19-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-30-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-29-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2168-23-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-21-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-25-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2168-28-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB