Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2023, 20:52

General

  • Target

    b4cba8d6da42a2cf40009b50502f7eeeb4ef601f0dafb7c2ee6aa9d4e2629755.dll

  • Size

    3.6MB

  • MD5

    a92d5ac95942035396dda8baead2b5de

  • SHA1

    42d657eb9486bd777838e2add24b4cfc1598ba4c

  • SHA256

    b4cba8d6da42a2cf40009b50502f7eeeb4ef601f0dafb7c2ee6aa9d4e2629755

  • SHA512

    3635355a4d1b564970b7e2038e49126635f6d24ef81ac172871c6220ca5770bd136283a3385366293edb21b45c104529ea6dc2193e392152ab51f05bcb32611e

  • SSDEEP

    49152:YjapCJeS7PSQvZkJg7kKKvMg98P+ilzue089HH/f:VpuD6zvMgCPVb06

Malware Config

Signatures

  • UnicornStealer

    UnicornStealer is a modular infostealer written in C++.

  • Unicorn Stealer payload 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4cba8d6da42a2cf40009b50502f7eeeb4ef601f0dafb7c2ee6aa9d4e2629755.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4cba8d6da42a2cf40009b50502f7eeeb4ef601f0dafb7c2ee6aa9d4e2629755.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Windows\system32\svchost.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1800
        • C:\Windows\SysWOW64\dllhost.exe
          "C:\Windows\system32\dllhost.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1468

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1468-149-0x0000000000400000-0x000000000053A000-memory.dmp

    Filesize

    1.2MB

  • memory/1468-148-0x0000000000400000-0x000000000053A000-memory.dmp

    Filesize

    1.2MB

  • memory/1468-142-0x0000000000F30000-0x0000000000F38000-memory.dmp

    Filesize

    32KB

  • memory/1468-141-0x00007FFF3C5F0000-0x00007FFF3C7E5000-memory.dmp

    Filesize

    2.0MB

  • memory/1800-138-0x00007FFF3C5F0000-0x00007FFF3C7E5000-memory.dmp

    Filesize

    2.0MB

  • memory/1800-139-0x0000000016C07000-0x0000000016C17000-memory.dmp

    Filesize

    64KB

  • memory/1800-137-0x0000000016C00000-0x0000000016D4D000-memory.dmp

    Filesize

    1.3MB

  • memory/1800-136-0x0000000002E60000-0x0000000002E68000-memory.dmp

    Filesize

    32KB

  • memory/1800-147-0x0000000016C07000-0x0000000016C17000-memory.dmp

    Filesize

    64KB

  • memory/5036-135-0x0000000002970000-0x000000000297A000-memory.dmp

    Filesize

    40KB

  • memory/5036-133-0x00000000025B0000-0x000000000295D000-memory.dmp

    Filesize

    3.7MB