Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 09:38

General

  • Target

    79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003.exe

  • Size

    629KB

  • MD5

    7328113a30f0e3451320b665790a12f2

  • SHA1

    ade2c85671938df168d285f80ac9849b035337d2

  • SHA256

    79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003

  • SHA512

    f4ba6d145123bc57c6f8c75f87f08a30abb65d586b51cfb0594ffc6667db074eaae3b816134c70f950c4c0ee98bf03ce741fa1232ba2066b9ceec872f141806d

  • SSDEEP

    12288:sBzBGNeMwgK2YbD/zTIB7k2B+4/7zHFcUGhjdCixqLoHKdYH1CeZbi6ezAot3EFP:sBOIg6bzTIlkWDXFc3dRxqLoHKdYH1C6

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003.exe
    "C:\Users\Admin\AppData\Local\Temp\79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Users\Admin\AppData\Local\Temp\79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003.exe
      "C:\Users\Admin\AppData\Local\Temp\79c31e067935e84aea2eabbbc95097741f8e24aa7ff1693a511444a515a90003.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1496
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1800

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • memory/1496-139-0x0000000000000000-mapping.dmp
  • memory/1496-143-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1496-142-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1496-140-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1800-145-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/1800-144-0x0000000000000000-mapping.dmp
  • memory/1800-147-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/1800-148-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/1800-150-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/3372-137-0x0000000074850000-0x0000000074E01000-memory.dmp
    Filesize

    5.7MB

  • memory/3372-132-0x0000000074850000-0x0000000074E01000-memory.dmp
    Filesize

    5.7MB

  • memory/3372-133-0x0000000074850000-0x0000000074E01000-memory.dmp
    Filesize

    5.7MB

  • memory/4280-138-0x0000000074850000-0x0000000074E01000-memory.dmp
    Filesize

    5.7MB

  • memory/4280-136-0x0000000074850000-0x0000000074E01000-memory.dmp
    Filesize

    5.7MB

  • memory/4280-135-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/4280-134-0x0000000000000000-mapping.dmp