Analysis

  • max time kernel
    118s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 01:40

General

  • Target

    4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe

  • Size

    674KB

  • MD5

    b93e5d5b8d6e25ea9107769128334130

  • SHA1

    eaa57f101eec3faaa8ca9a767a07e4cdef35999e

  • SHA256

    4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283

  • SHA512

    52dfb3178800cf6905ba2e5d4c351a176b3feb531329d5bd7ba3135843dbeacad3814a82eaf3ecdf0e5e47261d7cd3d4043b616a10a2b79c194566fbb33a0657

  • SSDEEP

    12288:AO98bQbs8+iS6RGUfSjWFa9Rh1iEIhjz3DO8ITXykKsSWScPx3ZokkR:ArIJ+7dUfSjWA9Rh14Jy8qZuWbx3Zg

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

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 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 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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe
    "C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:388
    • 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\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zDowlSskSU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2272
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zDowlSskSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2844
    • C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe
      "C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp

    Filesize

    1KB

    MD5

    bcbf49ec2e6ebae3db8c5c14b09965fa

    SHA1

    b6eb97de2d8beffcb38ae89cc1ef568718d6a992

    SHA256

    329835024d60169f0140aa29b389d200f4ff71b0320a4bab64eb757056d60d21

    SHA512

    5578d45e6cc2dee644b5ad5288fbcc3a0cd27f618d3b3d5ee46be77dbf770d9cf3846e2fcf2054cbf987aa29cd07aa6e6d8615c169dea6a25e19ccda52c97e03

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    6ff947ed4152b3fc850216d14246d4c0

    SHA1

    839de29cd39d8907e074b07b2b7a713e32ade8d3

    SHA256

    d0a569aba50c910f0a95894874065d4d1ad99b92e55ba906b03658a59c46a608

    SHA512

    e72553bf087980c8d6ce088d28b655b94427969e57103e8e6da6b642e65aed23c69803774aef63121a63276f93bb04998934c45c0844c4c1eb6d212f67f23f30

  • memory/388-4-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/388-3-0x0000000000620000-0x0000000000632000-memory.dmp

    Filesize

    72KB

  • memory/388-0-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

    Filesize

    4KB

  • memory/388-5-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

    Filesize

    4KB

  • memory/388-6-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/388-7-0x00000000055B0000-0x0000000005634000-memory.dmp

    Filesize

    528KB

  • memory/388-2-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/388-1-0x0000000000A10000-0x0000000000ABC000-memory.dmp

    Filesize

    688KB

  • memory/388-33-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-32-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2616-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2616-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB