Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/08/2022, 16:25

General

  • Target

    200bbb757192fb530d38711a112338ba.exe

  • Size

    847KB

  • MD5

    200bbb757192fb530d38711a112338ba

  • SHA1

    259c77525cf161a376a07ed9a035c3064e2a1f17

  • SHA256

    dfdea8e5cc329e17847e129d8e515043b0dba31f1af48304f28dd181483607ae

  • SHA512

    b387ea9263598db899501f202f754e0bbc39b72be177857809a70fc4608310b46e00fe9d96e9cc00d2a2c9ce48bec764f0f4aaa989724d0079711b8cd37866ea

Malware Config

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\200bbb757192fb530d38711a112338ba.exe
    "C:\Users\Admin\AppData\Local\Temp\200bbb757192fb530d38711a112338ba.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RAUXoDciVwKR.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1916
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RAUXoDciVwKR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7C73.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4488
    • C:\Users\Admin\AppData\Local\Temp\200bbb757192fb530d38711a112338ba.exe
      "C:\Users\Admin\AppData\Local\Temp\200bbb757192fb530d38711a112338ba.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1688
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:5020

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp7C73.tmp

          Filesize

          1KB

          MD5

          86c304d66ae87054431621624f040ff9

          SHA1

          a3fd556f753098ec4ee4df5b91317466231ee238

          SHA256

          66568b4daeacc8526fd7f269568a9cbb20d0fa0e094be5bed56cb8c0eab959ba

          SHA512

          bde871b1bc6b58cde54509e1abe34475fdb8e56d4bfdb54a68a1cc601f64625a3bac379a9a9b8107f4293bd5e451a87f5572babb18810526e17a297f23976f7a

        • memory/1688-165-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

        • memory/1688-151-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

        • memory/1688-145-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

        • memory/1688-143-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

        • memory/1916-149-0x0000000005900000-0x0000000005966000-memory.dmp

          Filesize

          408KB

        • memory/1916-154-0x0000000070730000-0x000000007077C000-memory.dmp

          Filesize

          304KB

        • memory/1916-164-0x00000000076C0000-0x00000000076C8000-memory.dmp

          Filesize

          32KB

        • memory/1916-142-0x0000000005260000-0x0000000005888000-memory.dmp

          Filesize

          6.2MB

        • memory/1916-163-0x00000000076E0000-0x00000000076FA000-memory.dmp

          Filesize

          104KB

        • memory/1916-162-0x00000000075D0000-0x00000000075DE000-memory.dmp

          Filesize

          56KB

        • memory/1916-148-0x00000000051F0000-0x0000000005212000-memory.dmp

          Filesize

          136KB

        • memory/1916-161-0x0000000007620000-0x00000000076B6000-memory.dmp

          Filesize

          600KB

        • memory/1916-150-0x0000000005A60000-0x0000000005AC6000-memory.dmp

          Filesize

          408KB

        • memory/1916-160-0x0000000007410000-0x000000000741A000-memory.dmp

          Filesize

          40KB

        • memory/1916-152-0x0000000006080000-0x000000000609E000-memory.dmp

          Filesize

          120KB

        • memory/1916-153-0x0000000007280000-0x00000000072B2000-memory.dmp

          Filesize

          200KB

        • memory/1916-139-0x0000000004AC0000-0x0000000004AF6000-memory.dmp

          Filesize

          216KB

        • memory/1916-155-0x0000000006630000-0x000000000664E000-memory.dmp

          Filesize

          120KB

        • memory/1916-156-0x00000000079F0000-0x000000000806A000-memory.dmp

          Filesize

          6.5MB

        • memory/1916-157-0x00000000073A0000-0x00000000073BA000-memory.dmp

          Filesize

          104KB

        • memory/3536-134-0x0000000004F00000-0x0000000004F92000-memory.dmp

          Filesize

          584KB

        • memory/3536-132-0x0000000000550000-0x0000000000628000-memory.dmp

          Filesize

          864KB

        • memory/3536-135-0x0000000004E90000-0x0000000004E9A000-memory.dmp

          Filesize

          40KB

        • memory/3536-136-0x000000000B120000-0x000000000B1BC000-memory.dmp

          Filesize

          624KB

        • memory/3536-133-0x00000000054B0000-0x0000000005A54000-memory.dmp

          Filesize

          5.6MB

        • memory/5020-159-0x00000000003D0000-0x00000000003EA000-memory.dmp

          Filesize

          104KB