Analysis

  • max time kernel
    90s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-02-2023 10:55

General

  • Target

    680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe

  • Size

    910KB

  • MD5

    5b34e76e438bfaf0843d47d641618967

  • SHA1

    45e6d39cd3a36cbf049c5afcf3cb9b77b165af72

  • SHA256

    680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677

  • SHA512

    113608a08a4930b6a59011c7b18bd67829d46976a8ecc0bfb5a88090986e4286a3b6f354a179fbb3861047eba7c28b319c3310860aea7ce23ac2ba6a4ecb87dc

  • SSDEEP

    12288:Hpsbbe2cbB2gB2iNdtinf8MoWEo6BoLixt3HPwm4NKwpfv63vq:HpsbbmV2K1ntifcXo6BX/NLmv6/

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.valvulasthermovalve.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!!

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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe
    "C:\Users\Admin\AppData\Local\Temp\680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3440
    • C:\Users\Admin\AppData\Local\Temp\680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe
      "C:\Users\Admin\AppData\Local\Temp\680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\680ad621a5a29534b98f1038e329fd601549711b5b4e7dda8a640df3488cb677.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3440-132-0x0000000000AD0000-0x0000000000BBA000-memory.dmp

    Filesize

    936KB

  • memory/3440-133-0x0000000005AF0000-0x0000000006094000-memory.dmp

    Filesize

    5.6MB

  • memory/3440-134-0x00000000055E0000-0x0000000005672000-memory.dmp

    Filesize

    584KB

  • memory/3440-135-0x0000000005570000-0x000000000557A000-memory.dmp

    Filesize

    40KB

  • memory/3440-136-0x0000000009460000-0x00000000094FC000-memory.dmp

    Filesize

    624KB

  • memory/4296-138-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4296-140-0x00000000050E0000-0x0000000005146000-memory.dmp

    Filesize

    408KB

  • memory/4296-141-0x0000000006D50000-0x0000000006DA0000-memory.dmp

    Filesize

    320KB

  • memory/4296-142-0x0000000006F70000-0x0000000007132000-memory.dmp

    Filesize

    1.8MB