Analysis

  • max time kernel
    56s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2023 07:15

General

  • Target

    522d2ac90778154b783b8c367901d0dc994e849b.exe

  • Size

    860KB

  • MD5

    60560661bb1ebaf6358a09997fd68c61

  • SHA1

    522d2ac90778154b783b8c367901d0dc994e849b

  • SHA256

    43a0be7895e81ab00df511b6e247641f46291a794c103111e602ff1401ea0324

  • SHA512

    da3e517bace9ebb6c770b0ab03660a56811ba4aba3e83ab21ed1d99b5f99f18082678ddd2887c3a0c644c27511e6e523925ad90bb649deac48c3a66d5c114f61

  • SSDEEP

    12288:bjSWEpeRUrakx5Q2t4rOa/J8OXVbeV2b2WtOez1Gi2Dg1Pjqn0Ta4spUT22tr:bApyUh8Oa/zb2WZz1Giwgbq0r9

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5590596148:AAFELAezvK26mOp3KWIpAgxEVzQMQ56n6zg/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\522d2ac90778154b783b8c367901d0dc994e849b.exe
    "C:\Users\Admin\AppData\Local\Temp\522d2ac90778154b783b8c367901d0dc994e849b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2012
    • 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\522d2ac90778154b783b8c367901d0dc994e849b.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rYfUNaSeLEBFy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:760
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rYfUNaSeLEBFy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A8C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1296
    • C:\Users\Admin\AppData\Local\Temp\522d2ac90778154b783b8c367901d0dc994e849b.exe
      "C:\Users\Admin\AppData\Local\Temp\522d2ac90778154b783b8c367901d0dc994e849b.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9A8C.tmp

    Filesize

    1KB

    MD5

    ff71800d6a864d3c28654482e0e4e06c

    SHA1

    0d6af32f942497d96d819a38d9d8882ebbd0323a

    SHA256

    1dc61ede6ae38c4d46b2ea2d5197b26af8316f2cf4b539404d7dd95e445d122e

    SHA512

    4de656d1746cf7c39d00d7a48434b36323df1a5f0d35bc145f73ba24b54c381a6b5c255ec62f0c43c5e4ba3daa5f90117affbe0f01f6a682f1795a372f3b0c9e

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

    Filesize

    7KB

    MD5

    9ab6d75cd2f7b8b2e211a14788f38ad9

    SHA1

    b4100bd24ad3bb22a5077078c881d0bd35d3d55d

    SHA256

    235d48c918f8b25ac8b3cd6c21ff9f0bb632a4c96cfb25241b65183d4a863ad4

    SHA512

    57b65088ebf935244f88bb0e080b720187ccf5a505f201980043ace3a6b4a3fecf822b8c2473b3f1d31433034d87c11c4387a329ee084096f48362d18156bdef

  • memory/576-79-0x000000006F8B0000-0x000000006FE5B000-memory.dmp

    Filesize

    5.7MB

  • memory/576-59-0x0000000000000000-mapping.dmp

  • memory/760-80-0x000000006F8B0000-0x000000006FE5B000-memory.dmp

    Filesize

    5.7MB

  • memory/760-61-0x0000000000000000-mapping.dmp

  • memory/1296-62-0x0000000000000000-mapping.dmp

  • memory/1848-72-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-77-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-67-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1848-73-0x000000000042A16E-mapping.dmp

  • memory/2012-54-0x0000000001100000-0x00000000011DC000-memory.dmp

    Filesize

    880KB

  • memory/2012-58-0x0000000004E30000-0x0000000004EB0000-memory.dmp

    Filesize

    512KB

  • memory/2012-66-0x00000000045E0000-0x0000000004626000-memory.dmp

    Filesize

    280KB

  • memory/2012-57-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/2012-56-0x0000000000210000-0x0000000000220000-memory.dmp

    Filesize

    64KB

  • memory/2012-55-0x00000000763A1000-0x00000000763A3000-memory.dmp

    Filesize

    8KB