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Resubmissions

05/10/2022, 12:26

221005-pmbq7seedr 10

05/10/2022, 10:31

221005-mkdfxaecdj 1

Analysis

  • max time kernel
    300s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2022, 12:26

General

  • Target

    hesaphareketi-01.exe

  • Size

    33KB

  • MD5

    d6870407aa950cb957d5953ca8f369f6

  • SHA1

    b4b01dbcd3ff4c93b5bed2caca65ae5161f8da4f

  • SHA256

    72f5582cc2f5a103307f8af4745d621c226dfb7940d33d18e8998b4ad1087373

  • SHA512

    6cd9cd4873f1c0fb4091bc4ab5b6c1f2c66490adc7fb94a763f060e9ba91b624ea175ce340fcbfd85f8ccb1f4869bd2093f02e4e210e926af28d499a7a9fdfdf

  • SSDEEP

    384:C+6mGkLVeSK3rBXnXOEGLkgt5JFV7XGddMKJKVGxovRZhYzQTBHCZJ5H1A:C+dvK3Zn+vkzzxo3TBi3vA

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5732817033:AAFBYIIZmJ7NuvVwD7WRcbV9qwcOqT7RpwM/sendMessage?chat_id=1638137774

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
  • Adds Run key to start application 2 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 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
    "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2180
    • C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
      C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2864
      • 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:2236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2180-140-0x0000000007D70000-0x00000000083EA000-memory.dmp

    Filesize

    6.5MB

  • memory/2180-135-0x0000000003170000-0x00000000031A6000-memory.dmp

    Filesize

    216KB

  • memory/2180-136-0x00000000058A0000-0x0000000005EC8000-memory.dmp

    Filesize

    6.2MB

  • memory/2180-137-0x0000000005F70000-0x0000000005FD6000-memory.dmp

    Filesize

    408KB

  • memory/2180-138-0x0000000006050000-0x00000000060B6000-memory.dmp

    Filesize

    408KB

  • memory/2180-139-0x0000000006730000-0x000000000674E000-memory.dmp

    Filesize

    120KB

  • memory/2180-141-0x0000000006C30000-0x0000000006C4A000-memory.dmp

    Filesize

    104KB

  • memory/2236-151-0x0000000005D30000-0x0000000005DCC000-memory.dmp

    Filesize

    624KB

  • memory/2236-150-0x0000000000D60000-0x0000000000D7A000-memory.dmp

    Filesize

    104KB

  • memory/2864-145-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2864-148-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2864-143-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2864-152-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4760-132-0x00000000004E0000-0x00000000004EE000-memory.dmp

    Filesize

    56KB

  • memory/4760-133-0x0000000006C30000-0x0000000006C52000-memory.dmp

    Filesize

    136KB