Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 14:49

General

  • Target

    e4ebab2236fe8ee61d700af17698b9b78a7b4a017fbbcc1c348ca5c43846ed00.exe

  • Size

    553KB

  • MD5

    7377245e4800bddf4a04988972a7d0b4

  • SHA1

    aff20a83a8638f57774c7035b01f16198e06e2fa

  • SHA256

    e4ebab2236fe8ee61d700af17698b9b78a7b4a017fbbcc1c348ca5c43846ed00

  • SHA512

    74eeb62a8b90d030125252312f52dd7f554f0c45d20191fbedb55e78a74149e4e2908aba72a4d41be7c85c3f9dffd924acdae9ceffa6f02055dcc8ae07a55408

  • SSDEEP

    6144:ULuBqxStDbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnxb:1tDQtqB5urTIoYWBQk1E+VF9mOx9Uit

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    awdawfav@mail.ru
  • Password:
    Bopone4489

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4ebab2236fe8ee61d700af17698b9b78a7b4a017fbbcc1c348ca5c43846ed00.exe
    "C:\Users\Admin\AppData\Local\Temp\e4ebab2236fe8ee61d700af17698b9b78a7b4a017fbbcc1c348ca5c43846ed00.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\AppData\Local\Temp\fawfw.exe
      "C:\Users\Admin\AppData\Local\Temp\fawfw.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:676
      • 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:2000
      • 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⤵
          PID:364
      • C:\Users\Admin\AppData\Local\Temp\SharpMonoInjector.exe
        "C:\Users\Admin\AppData\Local\Temp\SharpMonoInjector.exe"
        2⤵
        • Executes dropped EXE
        PID:320

    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

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\SharpMonoInjector.exe
      Filesize

      22KB

      MD5

      b96d8beccfea348c54c5d0e004ff22a0

      SHA1

      f8afd8a8f6735766056e74ffe2530d39a98b1ead

      SHA256

      bf234de67b371162a3709d3bb09014fefc0d4a3614583c4c3bfc0ba505d9f044

      SHA512

      2714c32dcb4cf269021b013fed311d52d718af6520f982dba68ab510c899ada70f44d95df21c9c0e595dd58a2921e7c9bad72bbac524252a9aabb902382a50b1

    • C:\Users\Admin\AppData\Local\Temp\SharpMonoInjector.exe
      Filesize

      22KB

      MD5

      b96d8beccfea348c54c5d0e004ff22a0

      SHA1

      f8afd8a8f6735766056e74ffe2530d39a98b1ead

      SHA256

      bf234de67b371162a3709d3bb09014fefc0d4a3614583c4c3bfc0ba505d9f044

      SHA512

      2714c32dcb4cf269021b013fed311d52d718af6520f982dba68ab510c899ada70f44d95df21c9c0e595dd58a2921e7c9bad72bbac524252a9aabb902382a50b1

    • C:\Users\Admin\AppData\Local\Temp\fawfw.exe
      Filesize

      521KB

      MD5

      742ab3dc8c77c87d32a2d79e54b50c88

      SHA1

      f2506029b4338c0267a7da1f7376cda38fee202e

      SHA256

      8188569f469f142064bb4e16b63ba0ab81539d6c55b4413906c929436e26f2b6

      SHA512

      85b0dd0a76b93395fe0e30563d35a63c7e3c1d07f9f3af193cf9fe0e98619d216b4dcf986da7f72d54f001eef52507e198bd65d3cfabc95765f67ffe6de75e0a

    • C:\Users\Admin\AppData\Local\Temp\fawfw.exe
      Filesize

      521KB

      MD5

      742ab3dc8c77c87d32a2d79e54b50c88

      SHA1

      f2506029b4338c0267a7da1f7376cda38fee202e

      SHA256

      8188569f469f142064bb4e16b63ba0ab81539d6c55b4413906c929436e26f2b6

      SHA512

      85b0dd0a76b93395fe0e30563d35a63c7e3c1d07f9f3af193cf9fe0e98619d216b4dcf986da7f72d54f001eef52507e198bd65d3cfabc95765f67ffe6de75e0a

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\AppData\Local\Temp\SharpMonoInjector.exe
      Filesize

      22KB

      MD5

      b96d8beccfea348c54c5d0e004ff22a0

      SHA1

      f8afd8a8f6735766056e74ffe2530d39a98b1ead

      SHA256

      bf234de67b371162a3709d3bb09014fefc0d4a3614583c4c3bfc0ba505d9f044

      SHA512

      2714c32dcb4cf269021b013fed311d52d718af6520f982dba68ab510c899ada70f44d95df21c9c0e595dd58a2921e7c9bad72bbac524252a9aabb902382a50b1

    • \Users\Admin\AppData\Local\Temp\fawfw.exe
      Filesize

      521KB

      MD5

      742ab3dc8c77c87d32a2d79e54b50c88

      SHA1

      f2506029b4338c0267a7da1f7376cda38fee202e

      SHA256

      8188569f469f142064bb4e16b63ba0ab81539d6c55b4413906c929436e26f2b6

      SHA512

      85b0dd0a76b93395fe0e30563d35a63c7e3c1d07f9f3af193cf9fe0e98619d216b4dcf986da7f72d54f001eef52507e198bd65d3cfabc95765f67ffe6de75e0a

    • memory/320-66-0x00000000004E0000-0x00000000004EA000-memory.dmp
      Filesize

      40KB

    • memory/320-64-0x0000000001260000-0x000000000126C000-memory.dmp
      Filesize

      48KB

    • memory/320-67-0x000000001B036000-0x000000001B055000-memory.dmp
      Filesize

      124KB

    • memory/320-59-0x0000000000000000-mapping.dmp
    • memory/320-68-0x000000001B036000-0x000000001B055000-memory.dmp
      Filesize

      124KB

    • memory/364-77-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/364-83-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/364-81-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/364-78-0x0000000000442628-mapping.dmp
    • memory/676-65-0x00000000744C0000-0x0000000074A6B000-memory.dmp
      Filesize

      5.7MB

    • memory/676-84-0x0000000000B45000-0x0000000000B56000-memory.dmp
      Filesize

      68KB

    • memory/676-56-0x0000000000000000-mapping.dmp
    • memory/676-74-0x0000000000B45000-0x0000000000B56000-memory.dmp
      Filesize

      68KB

    • memory/1812-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
      Filesize

      8KB

    • memory/2000-76-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2000-75-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2000-73-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2000-69-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2000-70-0x0000000000411654-mapping.dmp