Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 08:29

General

  • Target

    CG230511007 double ring.pdf.exe

  • Size

    698KB

  • MD5

    4a2d8f6fac5f95fc384c689d9a5927a2

  • SHA1

    97ad59b9532706d2457eb10f6902b5e2f9442566

  • SHA256

    44c35217277fbfdde4251ac9c9bad106247b6f5ca5ca0f1dbaf8f3343b364af0

  • SHA512

    43d2340d3f49c138b9c0f880617f4f730837c8983fa4a254b16ecbaa5dfef38c1643a657cf04962e9897c56fa561ede9181e3be23d24510e8cf9e186bf77cdd2

  • SSDEEP

    12288:FzjLf30WH0IieBhVpz60zapdl4VOqXEkOdu+VGBecnFj8AzPmZ:djj0yyeb/5+lfk8iFFj8MPm

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\CG230511007 double ring.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2188
    • 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\CG230511007 double ring.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjrOWyCGkiBRP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjrOWyCGkiBRP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BE1.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2368
    • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2BE1.tmp

    Filesize

    1KB

    MD5

    a4ffccd44dec85b803dc80d4134d8dde

    SHA1

    6d53cc032f2183cbf4c8d4639dc59ed516288d93

    SHA256

    46f4bf8431ee58cf9709e7d788a69ddacf9211f2e5cf0c05c8a121d0fc6c7075

    SHA512

    796fa504ea6cbe1a82e49fd1012af8720b0843225b84f6df741ca91de8fd6734904fa070db5e28a565d7ed03587fb838ff25ac1a9da0d9eaa123866394699667

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

    Filesize

    7KB

    MD5

    96ef988315ee74c0da949cf5037f360c

    SHA1

    f6ac2011b6e89aa2cad7f15a0e413d898c5be69a

    SHA256

    869a094420a56fa962316216ba76c7f55e908065e9708b2d3f3d646380a63d35

    SHA512

    c6c4b53fe95e7a5e7f9c4b90dbb14a8a0e78cfba00de9f0559dcaf13e144e088d74682d100629189c4d1a67a41edefa45d988a63f3da4379c6f7571b5ac75f37

  • memory/2188-4-0x000000007417E000-0x000000007417F000-memory.dmp

    Filesize

    4KB

  • memory/2188-31-0x0000000074170000-0x000000007485E000-memory.dmp

    Filesize

    6.9MB

  • memory/2188-0-0x000000007417E000-0x000000007417F000-memory.dmp

    Filesize

    4KB

  • memory/2188-5-0x0000000074170000-0x000000007485E000-memory.dmp

    Filesize

    6.9MB

  • memory/2188-6-0x0000000005D20000-0x0000000005DA2000-memory.dmp

    Filesize

    520KB

  • memory/2188-2-0x0000000074170000-0x000000007485E000-memory.dmp

    Filesize

    6.9MB

  • memory/2188-1-0x0000000000200000-0x00000000002B2000-memory.dmp

    Filesize

    712KB

  • memory/2188-3-0x0000000000560000-0x0000000000578000-memory.dmp

    Filesize

    96KB

  • memory/3016-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3016-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3016-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB