Analysis

  • max time kernel
    146s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 10:52

General

  • Target

    PO983627289.exe

  • Size

    837KB

  • MD5

    c9ddd7789409993921f935f42e7fcf1a

  • SHA1

    cd5e920aa114733fe22005fdb282c048d6fa6a75

  • SHA256

    fce56056a7028ed4787e39d614c90e84804ad0dc03185a6532834564b10b7d5a

  • SHA512

    e47730702a08704dd9fa2abeed91bdfa8b197c4c7754e1c0af3322c332e4bc82990193d90f6a81cf49d73f9ffd899119c22b2570beab86beddd06389dd3f5447

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.urban.co.th
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Urban@1143

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 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 1 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO983627289.exe
    "C:\Users\Admin\AppData\Local\Temp\PO983627289.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\PO983627289.exe
      "C:\Users\Admin\AppData\Local\Temp\PO983627289.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4992
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • 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:2684
          • 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"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:3528
          • 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"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3232

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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

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

    49B

    MD5

    ea5b54c83056d8fc473866723a96e947

    SHA1

    a3c539647a265f0a857f14b662c3387bb1991413

    SHA256

    a0e086aba51ca2e8b79a2064c8e3996b638bfb61bc7c972c53a98aefcb19a13b

    SHA512

    e135089cbc1d9fd547839c77937e52316e8230d218700e01ac4bb66d442c9b7d0bec4460ae9a6fe1e4f8b5a7d9ff0fa305281acfffc069e8be7dbfcf5e3b6c88

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

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    837KB

    MD5

    c9ddd7789409993921f935f42e7fcf1a

    SHA1

    cd5e920aa114733fe22005fdb282c048d6fa6a75

    SHA256

    fce56056a7028ed4787e39d614c90e84804ad0dc03185a6532834564b10b7d5a

    SHA512

    e47730702a08704dd9fa2abeed91bdfa8b197c4c7754e1c0af3322c332e4bc82990193d90f6a81cf49d73f9ffd899119c22b2570beab86beddd06389dd3f5447

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    837KB

    MD5

    c9ddd7789409993921f935f42e7fcf1a

    SHA1

    cd5e920aa114733fe22005fdb282c048d6fa6a75

    SHA256

    fce56056a7028ed4787e39d614c90e84804ad0dc03185a6532834564b10b7d5a

    SHA512

    e47730702a08704dd9fa2abeed91bdfa8b197c4c7754e1c0af3322c332e4bc82990193d90f6a81cf49d73f9ffd899119c22b2570beab86beddd06389dd3f5447

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    837KB

    MD5

    c9ddd7789409993921f935f42e7fcf1a

    SHA1

    cd5e920aa114733fe22005fdb282c048d6fa6a75

    SHA256

    fce56056a7028ed4787e39d614c90e84804ad0dc03185a6532834564b10b7d5a

    SHA512

    e47730702a08704dd9fa2abeed91bdfa8b197c4c7754e1c0af3322c332e4bc82990193d90f6a81cf49d73f9ffd899119c22b2570beab86beddd06389dd3f5447

  • memory/1548-132-0x0000000000AD0000-0x0000000000B58000-memory.dmp
    Filesize

    544KB

  • memory/1548-133-0x0000000000AD0000-0x0000000000B58000-memory.dmp
    Filesize

    544KB

  • memory/1548-134-0x0000000075390000-0x0000000075941000-memory.dmp
    Filesize

    5.7MB

  • memory/1548-130-0x0000000000000000-mapping.dmp
  • memory/2440-131-0x0000000000400000-0x00000000004D8000-memory.dmp
    Filesize

    864KB

  • memory/2684-138-0x0000000000000000-mapping.dmp
  • memory/2684-141-0x0000000000A10000-0x0000000000A98000-memory.dmp
    Filesize

    544KB

  • memory/2684-143-0x0000000075550000-0x0000000075B01000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-140-0x0000000000A10000-0x0000000000A98000-memory.dmp
    Filesize

    544KB

  • memory/3232-154-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/3232-153-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/3232-151-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/3232-150-0x0000000000000000-mapping.dmp
  • memory/3528-149-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/3528-148-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/3528-146-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/3528-145-0x0000000000000000-mapping.dmp
  • memory/4992-142-0x0000000000400000-0x00000000004D8000-memory.dmp
    Filesize

    864KB

  • memory/4992-135-0x0000000000000000-mapping.dmp