Analysis

  • max time kernel
    137s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2023 07:24

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 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⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3464
    • 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:3476
    • 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:216
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rYfUNaSeLEBFy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD9E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3824
    • 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:4560

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    70c5f8c51140eefa3ac2f32ecbb5ae6a

    SHA1

    e6666a9678271bda1e2bb192cee08eec976240bf

    SHA256

    71e8442e776341cd3d7bc514011d8d59270ab75cab53b752c1250847e0cd9c08

    SHA512

    7260be3ff059b4aad1701355be07e4badadc184f89f48c788ed06a17f1c8538106659ca8f04e72622dc4c02c280f22f3b79f7246b48a9c5ce4c409bdee957e85

  • C:\Users\Admin\AppData\Local\Temp\tmpFD9E.tmp

    Filesize

    1KB

    MD5

    440af085f4d6549ecf0c1bc00acc6f82

    SHA1

    b8e14ae58c2d57a7548577644b92e8ce53ea3ab0

    SHA256

    00ac21231d5a2fc9f0f13ecd4d2601d09457a22c5d933c1f613b25894497b623

    SHA512

    12c58c32578a2b5acc809f514c652eb1c2718e6af6314375fe136533c12bb7dd8f4c770869ac1f391a1adbf20c9317710f2d485653fe9cad18a553a98a156658

  • memory/216-153-0x00000000078A0000-0x00000000078BA000-memory.dmp

    Filesize

    104KB

  • memory/216-140-0x0000000002C60000-0x0000000002C96000-memory.dmp

    Filesize

    216KB

  • memory/216-141-0x0000000005880000-0x0000000005EA8000-memory.dmp

    Filesize

    6.2MB

  • memory/216-160-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

    Filesize

    32KB

  • memory/216-150-0x0000000071100000-0x000000007114C000-memory.dmp

    Filesize

    304KB

  • memory/216-145-0x0000000005560000-0x00000000055C6000-memory.dmp

    Filesize

    408KB

  • memory/216-147-0x0000000005800000-0x0000000005866000-memory.dmp

    Filesize

    408KB

  • memory/3464-136-0x0000000008A80000-0x0000000008B1C000-memory.dmp

    Filesize

    624KB

  • memory/3464-135-0x0000000005130000-0x000000000513A000-memory.dmp

    Filesize

    40KB

  • memory/3464-134-0x0000000005080000-0x0000000005112000-memory.dmp

    Filesize

    584KB

  • memory/3464-133-0x0000000005540000-0x0000000005AE4000-memory.dmp

    Filesize

    5.6MB

  • memory/3464-132-0x0000000000610000-0x00000000006EC000-memory.dmp

    Filesize

    880KB

  • memory/3476-154-0x0000000008170000-0x00000000087EA000-memory.dmp

    Filesize

    6.5MB

  • memory/3476-155-0x0000000007BA0000-0x0000000007BAA000-memory.dmp

    Filesize

    40KB

  • memory/3476-151-0x0000000071100000-0x000000007114C000-memory.dmp

    Filesize

    304KB

  • memory/3476-148-0x0000000006830000-0x000000000684E000-memory.dmp

    Filesize

    120KB

  • memory/3476-152-0x0000000006DD0000-0x0000000006DEE000-memory.dmp

    Filesize

    120KB

  • memory/3476-143-0x0000000005760000-0x0000000005782000-memory.dmp

    Filesize

    136KB

  • memory/3476-149-0x0000000006DF0000-0x0000000006E22000-memory.dmp

    Filesize

    200KB

  • memory/3476-156-0x0000000007DB0000-0x0000000007E46000-memory.dmp

    Filesize

    600KB

  • memory/3476-157-0x0000000007D60000-0x0000000007D6E000-memory.dmp

    Filesize

    56KB

  • memory/3476-158-0x0000000007E70000-0x0000000007E8A000-memory.dmp

    Filesize

    104KB

  • memory/4560-159-0x0000000006E50000-0x0000000006EA0000-memory.dmp

    Filesize

    320KB

  • memory/4560-146-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB