Analysis

  • max time kernel
    90s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 17:30

General

  • Target

    INVOICE.exe

  • Size

    676KB

  • MD5

    458d13e193d1def40ff8862d04ee3839

  • SHA1

    2441106df18080573cd0691f86c254e4e0a6193e

  • SHA256

    ddc5d1c80b07a16ba4a2d8d289dcfccaa1c2f25a525d96f223be8c8eedf9e9e6

  • SHA512

    c72ace9e6a680f087715a1727cf89e4dc5e490b697d238681662a3f0bb0df0a0184ab92c469b6aaa6fb29ba8871eb69620fa98cb3c27cddfb76b20f8a56df0c1

  • SSDEEP

    12288:57jia5WBDPVjYEeDxwq0BbIH+pKgzRltb2WupXMPj1pFSKgBqKTcmYkV+/1PLfWN:BGB7VjYHDxl8b+MKoRrKpXiJpFSKgBqi

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.

  • 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\INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2952

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\INVOICE.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1552-8-0x0000000005510000-0x000000000551C000-memory.dmp
    Filesize

    48KB

  • memory/1552-3-0x0000000007F20000-0x0000000007FB2000-memory.dmp
    Filesize

    584KB

  • memory/1552-9-0x000000000AB20000-0x000000000ABA2000-memory.dmp
    Filesize

    520KB

  • memory/1552-1-0x0000000074F40000-0x00000000756F0000-memory.dmp
    Filesize

    7.7MB

  • memory/1552-5-0x0000000007FF0000-0x0000000007FFA000-memory.dmp
    Filesize

    40KB

  • memory/1552-6-0x00000000081D0000-0x000000000826C000-memory.dmp
    Filesize

    624KB

  • memory/1552-7-0x00000000054E0000-0x00000000054F2000-memory.dmp
    Filesize

    72KB

  • memory/1552-0-0x0000000000FD0000-0x000000000107E000-memory.dmp
    Filesize

    696KB

  • memory/1552-14-0x0000000074F40000-0x00000000756F0000-memory.dmp
    Filesize

    7.7MB

  • memory/1552-2-0x00000000083F0000-0x0000000008994000-memory.dmp
    Filesize

    5.6MB

  • memory/1552-4-0x0000000008030000-0x0000000008040000-memory.dmp
    Filesize

    64KB

  • memory/2952-19-0x0000000002F10000-0x0000000002F20000-memory.dmp
    Filesize

    64KB

  • memory/2952-15-0x0000000002F10000-0x0000000002F20000-memory.dmp
    Filesize

    64KB

  • memory/2952-13-0x0000000074F40000-0x00000000756F0000-memory.dmp
    Filesize

    7.7MB

  • memory/2952-16-0x0000000005630000-0x0000000005696000-memory.dmp
    Filesize

    408KB

  • memory/2952-17-0x0000000006320000-0x0000000006370000-memory.dmp
    Filesize

    320KB

  • memory/2952-18-0x0000000074F40000-0x00000000756F0000-memory.dmp
    Filesize

    7.7MB

  • memory/2952-10-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB