Analysis

  • max time kernel
    19s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 05:15

General

  • Target

    tmp8ii0oxcg.exe

  • Size

    863KB

  • MD5

    134825c733dd21951bf7665bed8aad4a

  • SHA1

    9e06b2e54305f942e9afe41e54a1402c1147fd28

  • SHA256

    e46f2d7b2f17430fbf6670db5f785f22a38cec22cf879259032b1edb1d074c41

  • SHA512

    3284bf4d60a36b90ff993a7ccd3ea2b05d58a3bca70c06a5289ed711bb73938e368c0ee48c342aabf74b14a43d442c4a4dc7794a41192d67ce788cbd1e2801dd

  • SSDEEP

    12288:L8USL/xsbdP62HUGzHjYbdh/OKCyxtxvO+INP2HEB7qM0j0Sc/I4Y/MQfwlgrdmX:LSCJibGLk1HO+Ix5ec/43fw

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • 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 WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Looks up external IP address via web service 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp8ii0oxcg.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp8ii0oxcg.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1680
    • 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\tmp8ii0oxcg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cdkQpcBsOj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1492
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cdkQpcBsOj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9AAA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2840
    • C:\Users\Admin\AppData\Local\Temp\tmp8ii0oxcg.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp8ii0oxcg.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9AAA.tmp

    Filesize

    1KB

    MD5

    d169ea327f2399cdc872e5c80ee83656

    SHA1

    b1b832e7ad84fd40f3c2ebf0e6b7cf21f8f058e7

    SHA256

    7fe50f587c1a2c7c94a45ccdccc16c225d824312ceadc445ec6597f98cbef344

    SHA512

    02ca8f5447f872720e2023b9b57305760829b259646c8d97a7074155679b82afb8d159b316aead450aba18e3c7e80d6fe2e57a2e193e203e5f4f698080aa7e1b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\CDPTAIX00K1DF3W3TJWP.temp

    Filesize

    7KB

    MD5

    45b16103b0e00ec019a45bde32b74d70

    SHA1

    9d3435d1de3a58714a9a30484f715be3defdbc21

    SHA256

    039eb705804432a51940ef5a31d14f9d388c7e218c43fad727fff98a42bef137

    SHA512

    63eb21c3ed6e000dd202a6d135ff3900e1efa917743843a7168522cc394124eec56925215c43dc80e64e4bb00a76b536a488580346ad9cbb4af3f39bc72fbb94

  • memory/1680-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

    Filesize

    4KB

  • memory/1680-3-0x0000000000470000-0x0000000000482000-memory.dmp

    Filesize

    72KB

  • memory/1680-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

    Filesize

    4KB

  • memory/1680-5-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/1680-6-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/1680-7-0x00000000058D0000-0x0000000005952000-memory.dmp

    Filesize

    520KB

  • memory/1680-2-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/1680-1-0x0000000000250000-0x000000000032E000-memory.dmp

    Filesize

    888KB

  • memory/1680-32-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/2196-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2196-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2196-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB