Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 02:19

General

  • Target

    bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe

  • Size

    746KB

  • MD5

    c2f9a1e22122c9b6ee732d8cfb5936ce

  • SHA1

    b97ba1378239a1d6211b4a5d75d40bfc8bf5380d

  • SHA256

    bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97

  • SHA512

    1385614b140bffeced16a90de1079ab49dc13a163439c635c5b808e8f57f8cd31bbea0401382b0e9a1db6fe31494a1a339976cffeb0b0951f9c71b0ee0b39ef4

  • SSDEEP

    12288:Qzxdn6yWn7fcpVZlu/6uHZtY6skOBxPn+HF4KSnRiHWJs/j9CsH/ExI1cDb30Qdc:Un698VVYM6sNi3SoH5/j9TH/kgmr0QNc

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ipr-co.org
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    IPRco@100102@

Extracted

Family

agenttesla

Credentials

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.

  • Adds Run key to start application 2 TTPs 1 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe
    "C:\Users\Admin\AppData\Local\Temp\bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Users\Admin\AppData\Local\Temp\bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe
      "C:\Users\Admin\AppData\Local\Temp\bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1636

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

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\bc4f6836416fcdc1c51ebe142372c6188184f777127768545043711500f3ed97.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/60-5-0x0000000004EF0000-0x0000000004EFA000-memory.dmp
    Filesize

    40KB

  • memory/60-3-0x0000000004F30000-0x0000000004FC2000-memory.dmp
    Filesize

    584KB

  • memory/60-10-0x0000000009BC0000-0x0000000009C5C000-memory.dmp
    Filesize

    624KB

  • memory/60-9-0x0000000006440000-0x00000000064C4000-memory.dmp
    Filesize

    528KB

  • memory/60-4-0x00000000746A0000-0x0000000074E50000-memory.dmp
    Filesize

    7.7MB

  • memory/60-6-0x0000000005410000-0x0000000005432000-memory.dmp
    Filesize

    136KB

  • memory/60-7-0x0000000005470000-0x000000000547C000-memory.dmp
    Filesize

    48KB

  • memory/60-8-0x0000000002880000-0x0000000002890000-memory.dmp
    Filesize

    64KB

  • memory/60-15-0x00000000746A0000-0x0000000074E50000-memory.dmp
    Filesize

    7.7MB

  • memory/60-2-0x00000000054E0000-0x0000000005A84000-memory.dmp
    Filesize

    5.6MB

  • memory/60-0-0x00000000746AE000-0x00000000746AF000-memory.dmp
    Filesize

    4KB

  • memory/60-1-0x0000000000440000-0x00000000004FE000-memory.dmp
    Filesize

    760KB

  • memory/1636-14-0x00000000746A0000-0x0000000074E50000-memory.dmp
    Filesize

    7.7MB

  • memory/1636-20-0x00000000746A0000-0x0000000074E50000-memory.dmp
    Filesize

    7.7MB

  • memory/1636-16-0x0000000005020000-0x0000000005086000-memory.dmp
    Filesize

    408KB

  • memory/1636-17-0x00000000746A0000-0x0000000074E50000-memory.dmp
    Filesize

    7.7MB

  • memory/1636-19-0x0000000006550000-0x00000000065A0000-memory.dmp
    Filesize

    320KB

  • memory/1636-11-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB