Analysis

  • max time kernel
    66s
  • max time network
    55s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-04-2024 01:46

General

  • Target

    308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe

  • Size

    689KB

  • MD5

    39e05a59126848d15dfacf8cdbf756cb

  • SHA1

    c7eb7c1940434374b3061b5da1f46aeb2a4880ae

  • SHA256

    308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0

  • SHA512

    a354540178f1661cd8fddcc99ee10f3a3f510ceb4ea21da780e450a06a8fb979f1515c4fb883f40be50d10d08a2461f91dedb954d2831e57232e181516d5d8b8

  • SSDEEP

    12288:c+DbgkB778QeS4QIl1IS5zO91f3Eupk4j9wsoCN9tdq5:VgkBeQu9O91f3ruPY9q5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://eu-west-1.sftpcloud.io
  • Port:
    21
  • Username:
    6248aba3e30c4d5ca11aad04dd95e385
  • Password:
    DmEnBqH5w7NurkaD91VotzcZtKMTXKbe

Signatures

  • AgentTesla

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

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe
    "C:\Users\Admin\AppData\Local\Temp\308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Users\Admin\AppData\Local\Temp\308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe
      "C:\Users\Admin\AppData\Local\Temp\308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4332

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

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\308d96cbb4215c4900ece960e1c4042a0137f0aaad60f1c4eecae0a541ed00f0.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1452-10-0x0000000008DA0000-0x0000000008E3C000-memory.dmp
    Filesize

    624KB

  • memory/1452-14-0x0000000075380000-0x0000000075B30000-memory.dmp
    Filesize

    7.7MB

  • memory/1452-9-0x00000000067A0000-0x0000000006822000-memory.dmp
    Filesize

    520KB

  • memory/1452-4-0x0000000002F20000-0x0000000002F30000-memory.dmp
    Filesize

    64KB

  • memory/1452-5-0x0000000002EF0000-0x0000000002EFA000-memory.dmp
    Filesize

    40KB

  • memory/1452-6-0x0000000005510000-0x0000000005528000-memory.dmp
    Filesize

    96KB

  • memory/1452-7-0x0000000005530000-0x000000000553E000-memory.dmp
    Filesize

    56KB

  • memory/1452-8-0x0000000005540000-0x0000000005556000-memory.dmp
    Filesize

    88KB

  • memory/1452-3-0x00000000053A0000-0x0000000005432000-memory.dmp
    Filesize

    584KB

  • memory/1452-2-0x0000000005B10000-0x00000000060B4000-memory.dmp
    Filesize

    5.6MB

  • memory/1452-1-0x0000000075380000-0x0000000075B30000-memory.dmp
    Filesize

    7.7MB

  • memory/1452-0-0x00000000009D0000-0x0000000000A82000-memory.dmp
    Filesize

    712KB

  • memory/4332-20-0x0000000003380000-0x0000000003390000-memory.dmp
    Filesize

    64KB

  • memory/4332-15-0x0000000075380000-0x0000000075B30000-memory.dmp
    Filesize

    7.7MB

  • memory/4332-16-0x0000000003380000-0x0000000003390000-memory.dmp
    Filesize

    64KB

  • memory/4332-17-0x0000000005A40000-0x0000000005AA6000-memory.dmp
    Filesize

    408KB

  • memory/4332-18-0x00000000066D0000-0x0000000006720000-memory.dmp
    Filesize

    320KB

  • memory/4332-19-0x0000000075380000-0x0000000075B30000-memory.dmp
    Filesize

    7.7MB

  • memory/4332-11-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB