Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 09:08

General

  • Target

    Docs.exe

  • Size

    748KB

  • MD5

    28da32c1cf8ead709f4888f84a697c28

  • SHA1

    45122f3c46fb3400cc6710a830a259da54b07298

  • SHA256

    c10f8bc18521b4c90063ae5fc1e0e95e40ed35be3758d90f597d7cc1e3853ade

  • SHA512

    6d67f361a2f126e35f31e0ff5298bed2ee36e0262a8d71ec5254277c2ed122d9769bb7cc168d00b47616fd381f625a1a6542854c84d9c7cc184c607312fdef13

  • SSDEEP

    12288:90K/pbM4nsSz3ITyeYmaNKiz4xrreLpSYHK6rPILRwwAF9:90iM4nuTyVXNDz4xIYGK2Wg9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.alkuwaiti.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ele@1804

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.

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Docs.exe
    "C:\Users\Admin\AppData\Local\Temp\Docs.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Users\Admin\AppData\Local\Temp\Docs.exe
      "C:\Users\Admin\AppData\Local\Temp\Docs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2380

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\Docs.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2380-11-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2380-19-0x00000000748E0000-0x0000000075090000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-18-0x0000000006FF0000-0x0000000007040000-memory.dmp
    Filesize

    320KB

  • memory/2380-17-0x0000000005970000-0x00000000059D6000-memory.dmp
    Filesize

    408KB

  • memory/2380-16-0x00000000057F0000-0x0000000005800000-memory.dmp
    Filesize

    64KB

  • memory/2380-14-0x00000000748E0000-0x0000000075090000-memory.dmp
    Filesize

    7.7MB

  • memory/4344-4-0x0000000005310000-0x0000000005320000-memory.dmp
    Filesize

    64KB

  • memory/4344-8-0x00000000054D0000-0x00000000054DE000-memory.dmp
    Filesize

    56KB

  • memory/4344-9-0x00000000054E0000-0x00000000054F4000-memory.dmp
    Filesize

    80KB

  • memory/4344-10-0x00000000028E0000-0x0000000002962000-memory.dmp
    Filesize

    520KB

  • memory/4344-7-0x00000000052E0000-0x00000000052F8000-memory.dmp
    Filesize

    96KB

  • memory/4344-6-0x0000000005320000-0x00000000053BC000-memory.dmp
    Filesize

    624KB

  • memory/4344-5-0x0000000005100000-0x000000000510A000-memory.dmp
    Filesize

    40KB

  • memory/4344-15-0x00000000748E0000-0x0000000075090000-memory.dmp
    Filesize

    7.7MB

  • memory/4344-1-0x00000000748E0000-0x0000000075090000-memory.dmp
    Filesize

    7.7MB

  • memory/4344-3-0x0000000005050000-0x00000000050E2000-memory.dmp
    Filesize

    584KB

  • memory/4344-2-0x0000000005710000-0x0000000005CB4000-memory.dmp
    Filesize

    5.6MB

  • memory/4344-0-0x00000000005C0000-0x000000000067E000-memory.dmp
    Filesize

    760KB