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Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06/09/2024, 07:10

General

  • Target

    Payment Advice - Advice Ref A29ysWRKaYo8.exe

  • Size

    723KB

  • MD5

    b3c7e937f0cb8dd89acffa9edb73198b

  • SHA1

    3e2bc894ca5e7ecfb7cfbbe78634dd6935073e48

  • SHA256

    958d99a0d72d3367f0e9cde7b716a0adb3f09869bd874f68b43a601f9e9d4f10

  • SHA512

    9bb837e924fbdef4b23e462d385d8dce2352619fdd841488bdf5a7712d3c8a3ffe33a4250e5dcd1588b268a0214e5f94685d0a6539bb161a97be14785d2bd1c7

  • SSDEEP

    12288:vBEJ3+gWa8el0utRe6etHMKgc4CfPjbn1mhywY3R9NimMP0MUHY0qDro:vBg3+Za7XRU9TgoPvMYvMU4

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice - Advice Ref A29ysWRKaYo8.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice - Advice Ref A29ysWRKaYo8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • 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\Payment Advice - Advice Ref A29ysWRKaYo8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2892
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rSOYCYegP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rSOYCYegP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDAA6.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2924
    • C:\Users\Admin\AppData\Local\Temp\Payment Advice - Advice Ref A29ysWRKaYo8.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Advice - Advice Ref A29ysWRKaYo8.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDAA6.tmp

    Filesize

    1KB

    MD5

    7206c0132ff1794e05d3bf0f9e45d3e3

    SHA1

    ce3c955822678a12f80d06c96ccae56b2f56a518

    SHA256

    7095a2d9cda06946db28bfde9869d0894c99a18fb1e394e9db3d758261672694

    SHA512

    6310733f91424bf93029eb99af3cb130bd404aae59d25d449fc6f26a7f3d6604235110571e4ae25de44dde4d88a9cd8d00d4241342755aa43607c678ebe2c0e2

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

    Filesize

    7KB

    MD5

    c671a3edcc9bba52688c3074060897ad

    SHA1

    2f422188b771d8620945bafd676f92007804c70d

    SHA256

    eb2b11971774891cb73247ff05bc3b880d2f3e2dc2b8b31bf77b5e1b1c66273a

    SHA512

    be1b0c0038dc5611e5f1fcfff156635a917bb41227c36bad0dcbc4779a4de5ae6c1eff719df78ed9b9824c7837cac6625e6cb46a8d5ccb8f6648ddb644791027

  • memory/2652-4-0x00000000747FE000-0x00000000747FF000-memory.dmp

    Filesize

    4KB

  • memory/2652-31-0x00000000747F0000-0x0000000074EDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-0-0x00000000747FE000-0x00000000747FF000-memory.dmp

    Filesize

    4KB

  • memory/2652-5-0x00000000747F0000-0x0000000074EDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-6-0x0000000004FE0000-0x0000000005062000-memory.dmp

    Filesize

    520KB

  • memory/2652-2-0x00000000747F0000-0x0000000074EDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-1-0x0000000000C50000-0x0000000000D08000-memory.dmp

    Filesize

    736KB

  • memory/2652-3-0x00000000003D0000-0x00000000003E8000-memory.dmp

    Filesize

    96KB

  • memory/2748-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2748-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2748-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB