Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 10:26

General

  • Target

    TNT Original Invoice.exe

  • Size

    667KB

  • MD5

    c2853410ef7622a1c4011379555aeb6e

  • SHA1

    69221ad76e4cd869ff6483ab44d1248bb0b0a9fa

  • SHA256

    605ccfa010e2d945154cfb395a6a4855d00b710f447dbad889eb0415bb9710af

  • SHA512

    bcaee778eb208cf5c97c8c32f6f3427b7991b241900dff060b1871cff04b0412d8ca9e7d56ff20cdfec17325881af6c72daa56d2eb06c9efd5caf580ccfe484c

  • SSDEEP

    12288:BrueWFm+L0gJVGt0YKvh+PoiXPshhr/+2snkfh9r/tbfqo4uDUkas8b:kRFm+LX8Kv+o0mhrW2MkfDlfqBuB8

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5239412158:AAHXn8rC3uvBHy_kv77GtIcxcuvBuXcKD_8/

Signatures

  • AgentTesla

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

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1972
    • 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\TNT Original Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YGFoajAV.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2120
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YGFoajAV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64BC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2128
    • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp64BC.tmp

    Filesize

    1KB

    MD5

    f416189d7455ec3024c675431b0b4ebe

    SHA1

    2364dced29059d69a2824f25414817b562dcc12b

    SHA256

    2a5b20711ac9890fec001b35dd9a5df80b5f9ff8c093aa3a7e6e9da6d573cd9c

    SHA512

    9f076f47b218329064899811d8b670d610669e1759190d0ba5342d7a87ccb28846cb74fbc01d12f2497ba4ca5314c5c1a2775b115ac7847e5380eaf3d2e8a8c8

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

    Filesize

    7KB

    MD5

    9eb075c46944e7f394a9ffc3e41a547f

    SHA1

    31b02007210d3a425cd90e3534556c78450a2f44

    SHA256

    b6b2f3694e2f303d40af82541aeec6b94bac1dde13a8ee20bde9bd4c1a8f69a6

    SHA512

    d920adbe8a75f3fe82c4674e83fc63bd5e48d249bee46f5684cd9d6aa4037478a8698bef75bd1856e4c0287ce6c08e45e6a52e10c474813a27486ece84e5b37b

  • memory/1972-4-0x0000000000450000-0x000000000045E000-memory.dmp

    Filesize

    56KB

  • memory/1972-31-0x00000000742C0000-0x00000000749AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1972-0-0x0000000000320000-0x00000000003CC000-memory.dmp

    Filesize

    688KB

  • memory/1972-5-0x0000000000460000-0x0000000000476000-memory.dmp

    Filesize

    88KB

  • memory/1972-6-0x0000000005D50000-0x0000000005DD4000-memory.dmp

    Filesize

    528KB

  • memory/1972-2-0x0000000004B90000-0x0000000004BD0000-memory.dmp

    Filesize

    256KB

  • memory/1972-1-0x00000000742C0000-0x00000000749AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1972-3-0x00000000003E0000-0x00000000003F8000-memory.dmp

    Filesize

    96KB

  • memory/2460-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2460-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB