Analysis

  • max time kernel
    124s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 19:03

General

  • Target

    2024-10-11_03a5ea04ef15bca68edf74f38463087e_hiddentear.exe

  • Size

    660KB

  • MD5

    03a5ea04ef15bca68edf74f38463087e

  • SHA1

    ce7ffb5982cb5c5a66854d4931c6be802b06cf3e

  • SHA256

    0dfb3176683efa54883d71a9c575d15f2fcee4293e53dd99db71d9bdfed9913f

  • SHA512

    5f9df5ec1e8338ef0935329decce78f1699dd835a48faacb869212c72e8fef0b6384c8c0e12abf19f41edd76366e9b9ee55152550025839a348ecd3ebde4b706

  • SSDEEP

    12288:u2hpKuNFgElu1Wt2yAS6yFQTWnk1q1vvG2eZkmMwP3OI4kDkRpzA8aR:u2HKQNlZtlAS6yFMOPTVsqrAF

Malware Config

Signatures

  • HawkEye

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

  • Detected Nirsoft tools 9 IoCs

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

  • NirSoft MailPassView 6 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-11_03a5ea04ef15bca68edf74f38463087e_hiddentear.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-11_03a5ea04ef15bca68edf74f38463087e_hiddentear.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\xdztgu8f.cmdline"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4484
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES712A.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7129.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2624
    • C:\Users\Admin\AppData\Local\Temp\2024-10-11_03a5ea04ef15bca68edf74f38463087e_hiddentear.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-10-11_03a5ea04ef15bca68edf74f38463087e_hiddentear.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2688
      • 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
        • System Location Discovery: System Language Discovery
        PID:5076
      • 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⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1940
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 2156
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4764
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Process" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\xjkkViQA.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:548
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Process" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\xjkkViQA.exe
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RES712A.tmp

    Filesize

    1KB

    MD5

    20e27418a14b8b7d7c5ed17e14bb87a5

    SHA1

    46696b66b4d34b48cd4e314d5c1c7bd9233b0afa

    SHA256

    c0fb0e1c2d45a056fc4bcdb15cab04451cc34248f8daa71e895015bdd71c119a

    SHA512

    914bcf327a6350a5b033ea484636d38483f6884202fb6546320fa2dd159648c3788e293afbdfff7ee0581d563563d1fbfdf99725cb46997502fb603fc5885a94

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

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • C:\Users\Admin\AppData\Local\Temp\xdztgu8f.dll

    Filesize

    1.1MB

    MD5

    b7a92dead252100094dbcaded3f27f9e

    SHA1

    d73fa4cfe8e57fc47906c75dd5c26d56017aa910

    SHA256

    2c462a7a532dc7d5dbe2861ad15233dc4ba63f38cb8dcf6c5b62a318177802c5

    SHA512

    f87307b5effc0dd8c2f9ab4248cdc57c42072eb88c10280662521cfa6c149dce057cab74cb32bc4c81efbf3def18038d318a01eafae00412196f9ab6faf42298

  • \??\c:\Users\Admin\AppData\Local\Temp\CSC7129.tmp

    Filesize

    652B

    MD5

    6108aa96e219cbf8152be63da5dfc4e2

    SHA1

    d1cac9d84a5af864e50c55b28a3fe3258cc59ac9

    SHA256

    0a9013f3294d5899e02633ef95fa5014c0de14b97d7f68fdaf7bb1f7ac7666a5

    SHA512

    d92dcbeff20cea6c8acfb4867fc63873059f6fdf0d48c704cd810c02ac0d99fcd7dedb07244f5f0923df4df1e6b0b2a94d038234de0562d545733a1bd3a1b351

  • \??\c:\Users\Admin\AppData\Local\Temp\tmp706D.tmp.txt

    Filesize

    549KB

    MD5

    2685c4e3d19e4838a9ad3f51083652e5

    SHA1

    ab52629512c4ea07fa0193d84c4df6a742ebec51

    SHA256

    e49817106c90a6bf68190fe6f25951b0ec9ccc7c9ff5470ffad9c7c2985eefb3

    SHA512

    4d09d4c8e27c5cb68412bed52d6282619a99a837f769c518a57ac163f6af64197b190841c9c664956f136ae45c2da610f9ae1910e17d2710da59661b571e01e7

  • \??\c:\Users\Admin\AppData\Local\Temp\xdztgu8f.cmdline

    Filesize

    196B

    MD5

    d7c0f957603f68dec9099fe29b71f410

    SHA1

    ae788828113f80733c932266fbeceb5627a1a3a5

    SHA256

    328892d90a6ed6ad4f50600770f16aae233630c21df82bb713d2f5e3c1131003

    SHA512

    8ce3558b5841c47ae5137d7fa2b828c6d1b83e787510c03a5d9f651791e25bd6c7736630a421058d1f0f090cd671c93b8e75801c69aaeab323cb5c916ef990d6

  • memory/1940-50-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1940-43-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1940-42-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2688-30-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-40-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-22-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/2688-21-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/2688-28-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-24-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/2688-57-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-27-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-31-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-41-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4484-11-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4484-18-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4520-0-0x0000000074F42000-0x0000000074F43000-memory.dmp

    Filesize

    4KB

  • memory/4520-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4520-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4520-29-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/5076-39-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5076-37-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5076-36-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB