Analysis

  • max time kernel
    148s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2025, 14:05

General

  • Target

    91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe

  • Size

    780KB

  • MD5

    0c93904abb61aaf75ef8f7210de308e6

  • SHA1

    3eae214dd0cd6051d9dca98392c07085f171f2a7

  • SHA256

    91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62

  • SHA512

    c9c6de347b26c1b76e50cd3c500d1e7f020810562b6eb257f7160efe8fed4b95d4f664f94f0ec1fe6e12640473098008b6d4d1fbf2a4b5ba05e5f62b20539db7

  • SSDEEP

    12288:J2tgXH3sduObXsHylkxlOG6+iJN+CeS9hs7hh8Txf5NTh3ZUaeso9JTaP5lREAmD:gtTClOG6pf33rehWNt3mJ/S

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vanithafireworks.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vonline@2021

Signatures

  • HawkEye

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

  • Hawkeye family
  • Detected Nirsoft tools 7 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe
    "C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe
      "C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4908
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5004
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1492
          • 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
            • System Location Discovery: System Language Discovery
            PID:4192
          • 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⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:3352

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    102B

    MD5

    27db52220c716650547fed0a1ce61aea

    SHA1

    81e89fc708de7f9770706fdebb8d505ed24d2c0c

    SHA256

    eea951ba77a21622ac363280de82a406004ec6448534fbff7f1566121baef577

    SHA512

    094a57d32a932c9656701049ad26c216ab4adbe77283c5e4938d9354acd97e9194c2a213aec14973eeeed26e40a09b8e9b5959b9704208894941100ca1eec2ec

  • 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

    780KB

    MD5

    0c93904abb61aaf75ef8f7210de308e6

    SHA1

    3eae214dd0cd6051d9dca98392c07085f171f2a7

    SHA256

    91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62

    SHA512

    c9c6de347b26c1b76e50cd3c500d1e7f020810562b6eb257f7160efe8fed4b95d4f664f94f0ec1fe6e12640473098008b6d4d1fbf2a4b5ba05e5f62b20539db7

  • memory/860-0-0x000000007518E000-0x000000007518F000-memory.dmp

    Filesize

    4KB

  • memory/860-4-0x0000000005050000-0x0000000005064000-memory.dmp

    Filesize

    80KB

  • memory/860-7-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/860-5-0x0000000005070000-0x0000000005078000-memory.dmp

    Filesize

    32KB

  • memory/860-3-0x00000000050D0000-0x0000000005162000-memory.dmp

    Filesize

    584KB

  • memory/860-36-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/860-2-0x0000000005590000-0x0000000005B34000-memory.dmp

    Filesize

    5.6MB

  • memory/860-35-0x000000007518E000-0x000000007518F000-memory.dmp

    Filesize

    4KB

  • memory/860-1-0x0000000000630000-0x00000000006FC000-memory.dmp

    Filesize

    816KB

  • memory/1492-37-0x0000000007BE0000-0x0000000007C46000-memory.dmp

    Filesize

    408KB

  • memory/1492-31-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-39-0x0000000008190000-0x0000000008198000-memory.dmp

    Filesize

    32KB

  • memory/1492-44-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/3352-46-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3352-45-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3352-53-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4192-41-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4192-40-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4192-42-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4908-8-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4908-27-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4908-12-0x00000000058D0000-0x0000000005926000-memory.dmp

    Filesize

    344KB

  • memory/4908-11-0x00000000057B0000-0x00000000057BA000-memory.dmp

    Filesize

    40KB

  • memory/4908-10-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4908-9-0x0000000005690000-0x000000000572C000-memory.dmp

    Filesize

    624KB

  • memory/4908-6-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB

  • memory/5004-38-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/5004-28-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/5004-26-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/5004-43-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB