Analysis

  • max time kernel
    82s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/04/2023, 19:55

General

  • Target
    f25b1dd4bc3b8f899575ff4ae01594385a490a644b51e51c1a8f6685fd167006.exe
  • Size 349KB
  • Sample230414-ym94fabe95
  • SHA256 f25b1dd4bc3b8f899575ff4ae01594385a490a644b51e51c1a8f6685fd167006
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub4

Extracted

Family
  • smokeloader

Version
  • 2022

C2
  • http://aapu.at/tmp/

  • http://poudineh.com/tmp/

  • http://firsttrusteedrx.ru/tmp/

  • http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Extracted

Family
  • rhadamanthys

C2
  • http://179.43.142.201/img/favicon.png

Signatures

  • Detect rhadamanthys stealer shellcode 4 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f25b1dd4bc3b8f899575ff4ae01594385a490a644b51e51c1a8f6685fd167006.exe
    "C:\Users\Admin\AppData\Local\Temp\f25b1dd4bc3b8f899575ff4ae01594385a490a644b51e51c1a8f6685fd167006.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4284
  • C:\Users\Admin\AppData\Local\Temp\BE7.exe
    C:\Users\Admin\AppData\Local\Temp\BE7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Windows\system32\dllhost.exe
      "C:\Windows\system32\dllhost.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • outlook_office_path
      • outlook_win_path
      PID:4412
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 640
      2⤵
      • Program crash
      PID:220
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 776 -ip 776
    1⤵
      PID:2016

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          BE7.exe

          • Path C:\Users\Admin\AppData\Local\Temp\BE7.exe
          • Size 424KB
          • SHA256 c6d3e5869e77146cd4c302a18eb02412f4d967e251c143f45a3f69335c392785
          • MD5 SHA1 SHA512 SSDEEP

          BE7.exe

          • Path C:\Users\Admin\AppData\Local\Temp\BE7.exe
          • Size 424KB
          • SHA256 c6d3e5869e77146cd4c302a18eb02412f4d967e251c143f45a3f69335c392785
          • MD5 SHA1 SHA512 SSDEEP

          memory/776-154-0x0000000000A30000-0x0000000000A4C000-memory.dmp

          memory/776-160-0x0000000000400000-0x000000000080E000-memory.dmp

          memory/776-147-0x0000000002430000-0x000000000245E000-memory.dmp

          memory/776-148-0x0000000000400000-0x000000000080E000-memory.dmp

          memory/776-151-0x0000000000A30000-0x0000000000A4C000-memory.dmp

          memory/776-152-0x0000000000A30000-0x0000000000A4C000-memory.dmp

          memory/776-153-0x0000000000910000-0x0000000000912000-memory.dmp

          memory/776-156-0x0000000002690000-0x0000000002692000-memory.dmp

          memory/776-161-0x0000000000A30000-0x0000000000A4C000-memory.dmp

          memory/3112-135-0x0000000001260000-0x0000000001276000-memory.dmp

          memory/4284-134-0x00000000008B0000-0x00000000008B9000-memory.dmp

          memory/4284-136-0x0000000000400000-0x00000000007FC000-memory.dmp

          memory/4412-155-0x000002C0B85D0000-0x000002C0B85D1000-memory.dmp

          memory/4412-159-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp

          memory/4412-158-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp

          memory/4412-157-0x000002C0B88E0000-0x000002C0B88E7000-memory.dmp

          memory/4412-162-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp

          memory/4412-163-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp

          memory/4412-164-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp

          memory/4412-165-0x00007FF4BC520000-0x00007FF4BC61A000-memory.dmp