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Analysis

  • max time kernel
    115s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2024, 14:42

General

  • Target

    PO-020716-WA0002.pdf..exe

  • Size

    696KB

  • MD5

    c51a9f02f48f2b02ecbbe5f330c211a4

  • SHA1

    394e84d7e16cf386f4b33bb2761cfb9beb13595a

  • SHA256

    636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53

  • SHA512

    085f8c471bfed18d83795cdc6acb44730c637a2b106188edda8cefbea9213923d638a107ec5052b426e0d14f2d8c7fd10f5c89c816ae5da29ca28fcf55eb46fb

  • SSDEEP

    12288:fY/SDzsiLGVTYEMaWrrdmZzaXRaHd/7g9JYms1PAo6:fY/SDDSfMhvgacd/qJYms1Yx

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.brianberrills-ie.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    k)(yecz3

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe
    "C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2068
    • 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\PO-020716-WA0002.pdf..exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3844
    • C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe
      "C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO-020716-WA0002.pdf..exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yfcy0i3n.4ht.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1388-10-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1388-51-0x00000000069E0000-0x0000000006A30000-memory.dmp

    Filesize

    320KB

  • memory/1388-16-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1388-18-0x0000000005390000-0x00000000053F6000-memory.dmp

    Filesize

    408KB

  • memory/1388-61-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1388-13-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2068-4-0x0000000004F70000-0x0000000004F7A000-memory.dmp

    Filesize

    40KB

  • memory/2068-9-0x00000000049F0000-0x0000000004A72000-memory.dmp

    Filesize

    520KB

  • memory/2068-8-0x0000000006580000-0x000000000658C000-memory.dmp

    Filesize

    48KB

  • memory/2068-7-0x0000000005530000-0x0000000005548000-memory.dmp

    Filesize

    96KB

  • memory/2068-6-0x0000000005220000-0x00000000052BC000-memory.dmp

    Filesize

    624KB

  • memory/2068-14-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2068-5-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2068-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

    Filesize

    584KB

  • memory/2068-2-0x0000000005550000-0x0000000005AF4000-memory.dmp

    Filesize

    5.6MB

  • memory/2068-1-0x0000000000500000-0x00000000005B4000-memory.dmp

    Filesize

    720KB

  • memory/2068-0-0x000000007454E000-0x000000007454F000-memory.dmp

    Filesize

    4KB

  • memory/3844-21-0x0000000004B50000-0x0000000004B72000-memory.dmp

    Filesize

    136KB

  • memory/3844-48-0x0000000007470000-0x0000000007AEA000-memory.dmp

    Filesize

    6.5MB

  • memory/3844-22-0x0000000005350000-0x00000000053B6000-memory.dmp

    Filesize

    408KB

  • memory/3844-20-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-32-0x00000000054F0000-0x0000000005844000-memory.dmp

    Filesize

    3.3MB

  • memory/3844-33-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

    Filesize

    120KB

  • memory/3844-34-0x0000000005E80000-0x0000000005ECC000-memory.dmp

    Filesize

    304KB

  • memory/3844-35-0x0000000006CB0000-0x0000000006CE2000-memory.dmp

    Filesize

    200KB

  • memory/3844-36-0x00000000701C0000-0x000000007020C000-memory.dmp

    Filesize

    304KB

  • memory/3844-46-0x00000000060E0000-0x00000000060FE000-memory.dmp

    Filesize

    120KB

  • memory/3844-47-0x0000000006CF0000-0x0000000006D93000-memory.dmp

    Filesize

    652KB

  • memory/3844-19-0x0000000004BB0000-0x00000000051D8000-memory.dmp

    Filesize

    6.2MB

  • memory/3844-49-0x0000000006E30000-0x0000000006E4A000-memory.dmp

    Filesize

    104KB

  • memory/3844-50-0x0000000006EA0000-0x0000000006EAA000-memory.dmp

    Filesize

    40KB

  • memory/3844-15-0x0000000004540000-0x0000000004576000-memory.dmp

    Filesize

    216KB

  • memory/3844-52-0x00000000070B0000-0x0000000007146000-memory.dmp

    Filesize

    600KB

  • memory/3844-53-0x0000000007030000-0x0000000007041000-memory.dmp

    Filesize

    68KB

  • memory/3844-54-0x0000000007060000-0x000000000706E000-memory.dmp

    Filesize

    56KB

  • memory/3844-55-0x0000000007070000-0x0000000007084000-memory.dmp

    Filesize

    80KB

  • memory/3844-56-0x0000000007170000-0x000000000718A000-memory.dmp

    Filesize

    104KB

  • memory/3844-57-0x0000000007150000-0x0000000007158000-memory.dmp

    Filesize

    32KB

  • memory/3844-60-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-17-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB