Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 05:35

General

  • Target

    men.exe

  • Size

    894KB

  • MD5

    45edc34840d4064a30068fbce08d3216

  • SHA1

    3c285e23a2857853dfd5e71e04819f858c51f2d2

  • SHA256

    fca9c0410b06e1f10b9f1cab03993f58d9f422a4fdf77688a60d87a175738726

  • SHA512

    fb455f8c02d477c596abe666dcf4b5db139c462107643d305dce225a4f410e8089d87688d32d8c5a6f18aca1b5c830c5e36230be57360b2f34e7f43c1e25a3fa

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.amalgama-com.gq/
  • Port:
    21
  • Username:
    yes@amalgama-com.gq
  • Password:
    s,Xz}jSn6~i.

Signatures

  • AgentTesla

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\men.exe
    "C:\Users\Admin\AppData\Local\Temp\men.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\men.exe
      "C:\Users\Admin\AppData\Local\Temp\men.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2548-136-0x0000000000000000-mapping.dmp
  • memory/2548-137-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/2548-138-0x0000000005EA0000-0x0000000005EF0000-memory.dmp
    Filesize

    320KB

  • memory/4896-130-0x0000000000E60000-0x0000000000F44000-memory.dmp
    Filesize

    912KB

  • memory/4896-131-0x0000000005E80000-0x0000000006424000-memory.dmp
    Filesize

    5.6MB

  • memory/4896-132-0x0000000005970000-0x0000000005A02000-memory.dmp
    Filesize

    584KB

  • memory/4896-133-0x0000000005910000-0x000000000591A000-memory.dmp
    Filesize

    40KB

  • memory/4896-134-0x00000000094B0000-0x000000000954C000-memory.dmp
    Filesize

    624KB

  • memory/4896-135-0x0000000009AD0000-0x0000000009B36000-memory.dmp
    Filesize

    408KB