Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 02:34

General

  • Target

    bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe

  • Size

    740KB

  • MD5

    8c858aa84563521e1f1b36a4837eac48

  • SHA1

    c6116fa6f72fd6abfbfcd2e3cbde61f1a8fedda8

  • SHA256

    bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449

  • SHA512

    f24dab450b2aad62eb5b6bbfd9b10f6d4178daf2fcb3eb32f766adac8a94c903e36995f08e49cd6537607081b40a5a932272abfa4990a325b850986cc1b6f18d

  • SSDEEP

    12288:9d1JsJ6SPn1Sh2iNwKiQuvjvxGzuCMFqJi7vwlnvCpXJYKAFkIQXjx8hbHu2Z51S:9dcw1GzQScpMgJiU1a3AFkj9au2h

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ipr-co.org
  • Port:
    587
  • Username:
    info@ipr-co.org
  • Password:
    IPRco@100102@

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ipr-co.org
  • Port:
    587
  • Username:
    info@ipr-co.org
  • Password:
    IPRco@100102@
  • Email To:
    jinhux31@gmail.com

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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\bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe
    "C:\Users\Admin\AppData\Local\Temp\bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Users\Admin\AppData\Local\Temp\bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe
      "C:\Users\Admin\AppData\Local\Temp\bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1500

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\bd97d642866f3aaa69be60fe0ca7f96bc495e5d060a4c0827a9929b02df7b449.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/776-8-0x0000000005380000-0x000000000538C000-memory.dmp
    Filesize

    48KB

  • memory/776-3-0x00000000050D0000-0x0000000005162000-memory.dmp
    Filesize

    584KB

  • memory/776-9-0x0000000007E70000-0x0000000007EF2000-memory.dmp
    Filesize

    520KB

  • memory/776-1-0x0000000075200000-0x00000000759B0000-memory.dmp
    Filesize

    7.7MB

  • memory/776-6-0x0000000005390000-0x000000000542C000-memory.dmp
    Filesize

    624KB

  • memory/776-4-0x0000000005090000-0x000000000509A000-memory.dmp
    Filesize

    40KB

  • memory/776-7-0x0000000005360000-0x0000000005372000-memory.dmp
    Filesize

    72KB

  • memory/776-0-0x00000000005E0000-0x000000000069C000-memory.dmp
    Filesize

    752KB

  • memory/776-14-0x0000000075200000-0x00000000759B0000-memory.dmp
    Filesize

    7.7MB

  • memory/776-2-0x0000000005680000-0x0000000005C24000-memory.dmp
    Filesize

    5.6MB

  • memory/776-5-0x00000000052E0000-0x00000000052F0000-memory.dmp
    Filesize

    64KB

  • memory/1500-13-0x0000000075200000-0x00000000759B0000-memory.dmp
    Filesize

    7.7MB

  • memory/1500-19-0x0000000005390000-0x00000000053A0000-memory.dmp
    Filesize

    64KB

  • memory/1500-15-0x0000000005390000-0x00000000053A0000-memory.dmp
    Filesize

    64KB

  • memory/1500-16-0x00000000054E0000-0x0000000005546000-memory.dmp
    Filesize

    408KB

  • memory/1500-17-0x00000000062D0000-0x0000000006320000-memory.dmp
    Filesize

    320KB

  • memory/1500-18-0x0000000075200000-0x00000000759B0000-memory.dmp
    Filesize

    7.7MB

  • memory/1500-10-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB