Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 14:05

General

  • Target

    PO49000880.exe

  • Size

    696KB

  • MD5

    f81737bc40ede28ebedf91d62330f9fc

  • SHA1

    17c89376f2f53b155887652e5ce0cbc8b246ad20

  • SHA256

    75d0f8641ab2d7d47457fa1f1eeb338b2aacb9e356a539d18780c273d5a37a0f

  • SHA512

    b14f15d2354dceb0b54b4193a47130e811149ccf8cb1fc67bb15b59de1e5f773fae7d96aa8bcdc221cc72e6d7e82692663259d6c9529f20bad4dd2e08b4f5946

  • SSDEEP

    12288:eF2iN3XfwMTOEygb6x4eSSGAZDxXeOBb+c2f6DvtszpUlv312Z3:eF15wMCrgb6x4hRA3eOBb1dDtslUJ31s

Malware Config

Extracted

Family

agenttesla

Credentials

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 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO49000880.exe
    "C:\Users\Admin\AppData\Local\Temp\PO49000880.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4408
    • 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\PO49000880.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1400
    • C:\Users\Admin\AppData\Local\Temp\PO49000880.exe
      "C:\Users\Admin\AppData\Local\Temp\PO49000880.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3596
  • 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=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:816

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO49000880.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_omn53cos.vfc.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1400-48-0x0000000007320000-0x00000000073C3000-memory.dmp
      Filesize

      652KB

    • memory/1400-56-0x0000000007740000-0x000000000775A000-memory.dmp
      Filesize

      104KB

    • memory/1400-49-0x0000000007A50000-0x00000000080CA000-memory.dmp
      Filesize

      6.5MB

    • memory/1400-31-0x0000000005B10000-0x0000000005E64000-memory.dmp
      Filesize

      3.3MB

    • memory/1400-51-0x0000000007450000-0x000000000745A000-memory.dmp
      Filesize

      40KB

    • memory/1400-33-0x0000000006540000-0x000000000658C000-memory.dmp
      Filesize

      304KB

    • memory/1400-60-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1400-32-0x00000000060D0000-0x00000000060EE000-memory.dmp
      Filesize

      120KB

    • memory/1400-50-0x00000000073F0000-0x000000000740A000-memory.dmp
      Filesize

      104KB

    • memory/1400-57-0x0000000007720000-0x0000000007728000-memory.dmp
      Filesize

      32KB

    • memory/1400-13-0x0000000004B30000-0x0000000004B66000-memory.dmp
      Filesize

      216KB

    • memory/1400-36-0x00000000072E0000-0x0000000007312000-memory.dmp
      Filesize

      200KB

    • memory/1400-15-0x0000000002640000-0x0000000002650000-memory.dmp
      Filesize

      64KB

    • memory/1400-47-0x0000000006680000-0x000000000669E000-memory.dmp
      Filesize

      120KB

    • memory/1400-17-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1400-37-0x00000000709A0000-0x00000000709EC000-memory.dmp
      Filesize

      304KB

    • memory/1400-19-0x00000000051A0000-0x00000000057C8000-memory.dmp
      Filesize

      6.2MB

    • memory/1400-20-0x0000000005920000-0x0000000005942000-memory.dmp
      Filesize

      136KB

    • memory/1400-21-0x00000000059C0000-0x0000000005A26000-memory.dmp
      Filesize

      408KB

    • memory/1400-55-0x0000000007640000-0x0000000007654000-memory.dmp
      Filesize

      80KB

    • memory/1400-54-0x0000000007630000-0x000000000763E000-memory.dmp
      Filesize

      56KB

    • memory/1400-53-0x0000000007600000-0x0000000007611000-memory.dmp
      Filesize

      68KB

    • memory/1400-52-0x0000000007660000-0x00000000076F6000-memory.dmp
      Filesize

      600KB

    • memory/3596-10-0x0000000000400000-0x0000000000430000-memory.dmp
      Filesize

      192KB

    • memory/3596-35-0x00000000067F0000-0x00000000069B2000-memory.dmp
      Filesize

      1.8MB

    • memory/3596-34-0x00000000065D0000-0x0000000006620000-memory.dmp
      Filesize

      320KB

    • memory/3596-18-0x0000000005270000-0x00000000052D6000-memory.dmp
      Filesize

      408KB

    • memory/3596-14-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/3596-61-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/3596-62-0x0000000005260000-0x0000000005270000-memory.dmp
      Filesize

      64KB

    • memory/4408-16-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/4408-0-0x0000000074D20000-0x00000000754D0000-memory.dmp
      Filesize

      7.7MB

    • memory/4408-7-0x0000000005250000-0x0000000005264000-memory.dmp
      Filesize

      80KB

    • memory/4408-9-0x000000000BE90000-0x000000000BF2C000-memory.dmp
      Filesize

      624KB

    • memory/4408-5-0x0000000004C30000-0x0000000004C3A000-memory.dmp
      Filesize

      40KB

    • memory/4408-1-0x0000000000170000-0x0000000000224000-memory.dmp
      Filesize

      720KB

    • memory/4408-3-0x0000000004CB0000-0x0000000004D42000-memory.dmp
      Filesize

      584KB

    • memory/4408-2-0x0000000005260000-0x0000000005804000-memory.dmp
      Filesize

      5.6MB

    • memory/4408-8-0x0000000002580000-0x00000000025F0000-memory.dmp
      Filesize

      448KB

    • memory/4408-6-0x0000000006490000-0x00000000064B0000-memory.dmp
      Filesize

      128KB

    • memory/4408-4-0x0000000004BD0000-0x0000000004BE0000-memory.dmp
      Filesize

      64KB