Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-09-2024 04:25

General

  • Target

    fdcb53a86670d5782e0ac4c069537b00_JaffaCakes118.exe

  • Size

    915KB

  • MD5

    fdcb53a86670d5782e0ac4c069537b00

  • SHA1

    36ddd04877b999473cf4e46b94f5330a559257cd

  • SHA256

    7566294be06c8142dd6574ef56767f90a424edb4b8a21058bf8aea868c9c3cc3

  • SHA512

    7c515e97f4ec22f0f103df8def0f934304a441149ffbac88adacf125873ce589282a1ae60e36dc5d6b8346ce369648d8883cce16dbd669bf115052357d288a49

  • SSDEEP

    12288:xur8TrIF6cjKY+0b2NY5CDPvb7HJTfon0IFR5xvGCzBGWNZ5vSy6M:AD6cjv+0b2NY5sZon0I71AE

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1583923195:AAHUT4ueKfg_YIXfpMplquY6eX1fVChpGQQ/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 3 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fdcb53a86670d5782e0ac4c069537b00_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fdcb53a86670d5782e0ac4c069537b00_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4180
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NXciAkPU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB188.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2316
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:3160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB188.tmp

    Filesize

    1KB

    MD5

    a225aef4944ea16947954d5629a30286

    SHA1

    dddfacd8285eafd07324dce44c587263c3ccf75e

    SHA256

    28fcf964ea2c95c7fb92353bdf7cdc9932bf6299e49be5170cdb41a1530a7789

    SHA512

    4f856ffbae475cd463a7b8df13839ec9d39e13222489d2ff57dc56807dd356755164e9019134097160018d46cdafbcc331e331615c7ae5937d620d4bb493430d

  • memory/3160-27-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-26-0x00000000066D0000-0x0000000006720000-memory.dmp

    Filesize

    320KB

  • memory/3160-25-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-24-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-23-0x0000000006260000-0x00000000062C6000-memory.dmp

    Filesize

    408KB

  • memory/3160-22-0x0000000005510000-0x0000000005528000-memory.dmp

    Filesize

    96KB

  • memory/3160-21-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-19-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3160-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4180-10-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4180-11-0x00000000069E0000-0x0000000006A5C000-memory.dmp

    Filesize

    496KB

  • memory/4180-0-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/4180-9-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/4180-8-0x0000000005B50000-0x0000000005B68000-memory.dmp

    Filesize

    96KB

  • memory/4180-20-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4180-7-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4180-6-0x0000000005BD0000-0x0000000005C26000-memory.dmp

    Filesize

    344KB

  • memory/4180-5-0x0000000005870000-0x000000000587A000-memory.dmp

    Filesize

    40KB

  • memory/4180-4-0x0000000005980000-0x0000000005A12000-memory.dmp

    Filesize

    584KB

  • memory/4180-3-0x0000000005F30000-0x00000000064D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4180-2-0x00000000058E0000-0x000000000597C000-memory.dmp

    Filesize

    624KB

  • memory/4180-1-0x0000000000DE0000-0x0000000000ECA000-memory.dmp

    Filesize

    936KB