Analysis

  • max time kernel
    143s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 02:25

General

  • Target

    845971e68786f9c59ad9e4d5b7a2b1fe.exe

  • Size

    340KB

  • MD5

    845971e68786f9c59ad9e4d5b7a2b1fe

  • SHA1

    619a41e8a05c9f1f8aa56684e6578f9efd2acf0f

  • SHA256

    e749697baf047ee9b5261865ffb43b8b92e77288f9d764798d00c2fd685ca573

  • SHA512

    c00e5cc5bc66c3ef5e078330aa26d5a6c29cd76c611418c3bf16e6f1d25693974757e97cd689c7a587d9a3c4ddecf6c90bd8be7f7015d082987cdc6e1683400b

  • SSDEEP

    6144:c8k80ckeOTFIdzXdVufRrLivwburclAp07IdY:c8k80ckeaId65LswburcypJ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7178103238:AAFpcijMmYeMlJJVnAmpmroCaHuSs5YlbxU/

Extracted

Family

xworm

C2

127.0.0.1:5000

51.89.241.91:5000

Attributes
  • Install_directory

    %Public%

  • install_file

    Adobe Cloud.exe

  • telegram

    https://api.telegram.org/bot5474576959:AAEFEPb7hmHEmq_ZM_jasyYk46DECm44Sm0/sendMessage?chat_id=1412104349

Signatures

  • AgentTesla

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

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\845971e68786f9c59ad9e4d5b7a2b1fe.exe
    "C:\Users\Admin\AppData\Local\Temp\845971e68786f9c59ad9e4d5b7a2b1fe.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Adobe Cloud.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Adobe Cloud.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:936
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Adobe Cloud" /tr "C:\Users\Public\Adobe Cloud.exe"
        3⤵
        • Creates scheduled task(s)
        PID:3088
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3700 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5012
    • C:\Users\Public\Adobe Cloud.exe
      "C:\Users\Public\Adobe Cloud.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4948

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Adobe Cloud.exe
      Filesize

      66KB

      MD5

      43a6696dfbd330e7a31b6fea5c221355

      SHA1

      0e7344b329e0d188a5bb39179822cd94a2d94296

      SHA256

      d9275381bfa7cb754b86f2610ac3e0885d0f38a837e7173a5b45edc8912b607a

      SHA512

      b741612a7623982c1ae727bf96c004825675e5bd3fb701638b98eca67dc27b19db6202803ad54894e573e61f036466959b7f022e3dad4c62a3ae358130ffaedc

    • memory/936-34-0x0000000001550000-0x0000000001560000-memory.dmp
      Filesize

      64KB

    • memory/936-32-0x00007FFCA1A70000-0x00007FFCA2531000-memory.dmp
      Filesize

      10.8MB

    • memory/936-30-0x000000001CDC0000-0x000000001CEC2000-memory.dmp
      Filesize

      1.0MB

    • memory/936-29-0x0000000001550000-0x0000000001560000-memory.dmp
      Filesize

      64KB

    • memory/936-21-0x00007FFCA1A70000-0x00007FFCA2531000-memory.dmp
      Filesize

      10.8MB

    • memory/936-20-0x0000000000870000-0x0000000000886000-memory.dmp
      Filesize

      88KB

    • memory/2016-4-0x0000000005B00000-0x0000000005B66000-memory.dmp
      Filesize

      408KB

    • memory/2016-6-0x0000000007120000-0x00000000071B2000-memory.dmp
      Filesize

      584KB

    • memory/2016-5-0x0000000074D90000-0x0000000075540000-memory.dmp
      Filesize

      7.7MB

    • memory/2016-22-0x00000000074C0000-0x0000000007510000-memory.dmp
      Filesize

      320KB

    • memory/2016-23-0x00000000075B0000-0x000000000764C000-memory.dmp
      Filesize

      624KB

    • memory/2016-28-0x0000000005950000-0x0000000005960000-memory.dmp
      Filesize

      64KB

    • memory/2016-0-0x0000000074D90000-0x0000000075540000-memory.dmp
      Filesize

      7.7MB

    • memory/2016-3-0x0000000005950000-0x0000000005960000-memory.dmp
      Filesize

      64KB

    • memory/2016-2-0x0000000006040000-0x00000000065E4000-memory.dmp
      Filesize

      5.6MB

    • memory/2016-1-0x0000000000FB0000-0x000000000100C000-memory.dmp
      Filesize

      368KB

    • memory/4948-39-0x00007FFCA1A70000-0x00007FFCA2531000-memory.dmp
      Filesize

      10.8MB

    • memory/4948-43-0x00007FFCA1A70000-0x00007FFCA2531000-memory.dmp
      Filesize

      10.8MB