Analysis

  • max time kernel
    141s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    28-07-2021 10:51

General

  • Target

    2129-20 30% CLAIM - PO SPO21-01-072.exe

  • Size

    713KB

  • MD5

    24b0181283f32c69f89e64761c4f4cd9

  • SHA1

    cae8734f820537adda23e7cf891ebcd92b0e4c1c

  • SHA256

    11c57727c43aa2062fb4194e9df78a89a9482169f603f7ead5bdd77f2ccf69d6

  • SHA512

    5600df81269b5c34f639c4ffe0cc3ad3438bdffdf1168384397503bba3a378af5c136e6e0c9ddacfa32dcdec6ccbfa87a68c4fe095017e525e0843b96da9b278

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.boikgold.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    iskraines@2017

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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
  • 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\2129-20 30% CLAIM - PO SPO21-01-072.exe
    "C:\Users\Admin\AppData\Local\Temp\2129-20 30% CLAIM - PO SPO21-01-072.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Users\Admin\AppData\Local\Temp\2129-20 30% CLAIM - PO SPO21-01-072.exe
      "C:\Users\Admin\AppData\Local\Temp\2129-20 30% CLAIM - PO SPO21-01-072.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2129-20 30% CLAIM - PO SPO21-01-072.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/992-121-0x00000000043A0000-0x00000000043AB000-memory.dmp

    Filesize

    44KB

  • memory/992-123-0x0000000007140000-0x0000000007179000-memory.dmp

    Filesize

    228KB

  • memory/992-118-0x00000000048E0000-0x0000000004DDE000-memory.dmp

    Filesize

    5.0MB

  • memory/992-119-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

    Filesize

    4KB

  • memory/992-120-0x0000000004C20000-0x0000000004C21000-memory.dmp

    Filesize

    4KB

  • memory/992-114-0x0000000000090000-0x0000000000091000-memory.dmp

    Filesize

    4KB

  • memory/992-122-0x00000000070C0000-0x000000000713E000-memory.dmp

    Filesize

    504KB

  • memory/992-117-0x0000000004980000-0x0000000004981000-memory.dmp

    Filesize

    4KB

  • memory/992-116-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

    Filesize

    4KB

  • memory/3872-125-0x000000000043759E-mapping.dmp

  • memory/3872-124-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3872-131-0x0000000004EC0000-0x00000000053BE000-memory.dmp

    Filesize

    5.0MB

  • memory/3872-132-0x0000000005320000-0x0000000005321000-memory.dmp

    Filesize

    4KB

  • memory/3872-133-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

    Filesize

    4KB