Analysis

  • max time kernel
    125s
  • max time network
    170s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 20:03

General

  • Target

    bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396.exe

  • Size

    996KB

  • MD5

    7e6a34613f22e108af5ba6d0c90d1b64

  • SHA1

    dde950b246473b270c68c695891a658dfad74088

  • SHA256

    bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

  • SHA512

    194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

  • SSDEEP

    24576:yfZw4flnbXFhDuIOLPI7Qzb7i2qmknwdH:8Zw49nbXFhu5SOi2Jknwt

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 12 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 16 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 63 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396.exe
    "C:\Users\Admin\AppData\Local\Temp\bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Users\Admin\AppData\Local\Temp\bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396.exe
      "C:\Users\Admin\AppData\Local\Temp\bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • 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:928
          • 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:1120
          • 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⤵
              PID:680

    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\SysInfo.txt
      Filesize

      102B

      MD5

      a230a64f0e2a94ec814b9369d2470e97

      SHA1

      854f9753795a3fe20193f2b129cd7400d03a705f

      SHA256

      e14543c628e1f258bc880886e8e091ab91fb77875909e1598284ff6aed69f149

      SHA512

      5a4ffd06ec99f3d26677ba410390f4ac86174aedba88e9287846064ba3986cfeb2088cbb754f4de8d02472a8f2b4411c55a9f683c00f5f5e4f59f8815ddf63ce

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      996KB

      MD5

      7e6a34613f22e108af5ba6d0c90d1b64

      SHA1

      dde950b246473b270c68c695891a658dfad74088

      SHA256

      bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

      SHA512

      194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

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

      996KB

      MD5

      7e6a34613f22e108af5ba6d0c90d1b64

      SHA1

      dde950b246473b270c68c695891a658dfad74088

      SHA256

      bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

      SHA512

      194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

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

      996KB

      MD5

      7e6a34613f22e108af5ba6d0c90d1b64

      SHA1

      dde950b246473b270c68c695891a658dfad74088

      SHA256

      bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

      SHA512

      194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

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

      996KB

      MD5

      7e6a34613f22e108af5ba6d0c90d1b64

      SHA1

      dde950b246473b270c68c695891a658dfad74088

      SHA256

      bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

      SHA512

      194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

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

      996KB

      MD5

      7e6a34613f22e108af5ba6d0c90d1b64

      SHA1

      dde950b246473b270c68c695891a658dfad74088

      SHA256

      bbd6b524197a7f09075dd21745e87b4663571f187ee6c6802677391aa6787396

      SHA512

      194b8aac00b5fe888329e15403767b425bb244d1d41bc795caa603b6deca8df18de4abffb63620484966f7bf9072120dc9ad3abff353a8d8d87163cb695be230

    • memory/680-106-0x0000000000442628-mapping.dmp
    • memory/680-105-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/680-109-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/680-111-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/928-96-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/928-98-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/928-88-0x0000000000485AFE-mapping.dmp
    • memory/1120-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1120-99-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1120-100-0x0000000000411654-mapping.dmp
    • memory/1120-103-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1120-112-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1356-71-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1356-54-0x0000000075091000-0x0000000075093000-memory.dmp
      Filesize

      8KB

    • memory/1356-56-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1356-55-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1648-66-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-68-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-57-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-58-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-77-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1648-60-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-70-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1648-62-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1648-64-0x0000000000485AFE-mapping.dmp
    • memory/1648-63-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/1732-95-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1732-73-0x0000000000000000-mapping.dmp
    • memory/1732-78-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB

    • memory/1732-79-0x00000000744F0000-0x0000000074A9B000-memory.dmp
      Filesize

      5.7MB