Analysis

  • max time kernel
    151s
  • max time network
    102s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06/10/2021, 20:26

General

  • Target
    d0f171ac5c05580ab9fd58b847fc4bae.exe
  • Size 199KB
  • Sample211006-y7wrjsbham
  • SHA256 4e2576cc482bc9b98a8dfd14c7a0126d8ec8d38a4ec438047072af232637f4bf
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://fiskahlilian16.top/

  • http://paishancho17.top/

  • http://ydiannetter18.top/

  • http://azarehanelle19.top/

  • http://quericeriant20.top/

rc4.i32
rc4.i32

Extracted

Family
  • raccoon

Version
  • 1.8.2

Botnet
  • 2ea41939378a473cbe7002fd507389778c0f10e7

Attributes
  • url4cnc

    http://teletop.top/stevuitreen

    http://teleta.top/stevuitreen

    https://t.me/stevuitreen

rc4.plain
rc4.plain

Extracted

Family
  • redline

Botnet
  • 800

C2
  • 87.251.71.44:80

Extracted

Family
  • raccoon

Version
  • 1.8.2

Botnet
  • 8d179b9e611eee525425544ee8c6d77360ab7cd9

Attributes
  • url4cnc

    http://teletop.top/agrybirdsgamerept

    http://teleta.top/agrybirdsgamerept

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

  • Vidar Stealer 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 4 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies registry class 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d0f171ac5c05580ab9fd58b847fc4bae.exe
    "C:\Users\Admin\AppData\Local\Temp\d0f171ac5c05580ab9fd58b847fc4bae.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Users\Admin\AppData\Local\Temp\d0f171ac5c05580ab9fd58b847fc4bae.exe
      "C:\Users\Admin\AppData\Local\Temp\d0f171ac5c05580ab9fd58b847fc4bae.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:904
  • C:\Users\Admin\AppData\Local\Temp\B541.exe
    C:\Users\Admin\AppData\Local\Temp\B541.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im B541.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\B541.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im B541.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2892
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:3968
  • C:\Users\Admin\AppData\Local\Temp\B830.exe
    C:\Users\Admin\AppData\Local\Temp\B830.exe
    1⤵
    • Executes dropped EXE
    PID:1204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 608
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2460
  • C:\Users\Admin\AppData\Local\Temp\BCD5.exe
    C:\Users\Admin\AppData\Local\Temp\BCD5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1348
  • C:\Users\Admin\AppData\Local\Temp\C300.exe
    C:\Users\Admin\AppData\Local\Temp\C300.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im C300.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C300.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im C300.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3096
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:2156
  • C:\Users\Admin\AppData\Local\Temp\CB5D.exe
    C:\Users\Admin\AppData\Local\Temp\CB5D.exe
    1⤵
    • Executes dropped EXE
    PID:3848

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/804-116-0x0000000000030000-0x0000000000039000-memory.dmp

        memory/904-114-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/1144-128-0x0000000000400000-0x00000000004D9000-memory.dmp

        memory/1144-127-0x0000000000870000-0x0000000000946000-memory.dmp

        memory/1204-132-0x00000000006A0000-0x000000000072E000-memory.dmp

        memory/1204-133-0x0000000000400000-0x0000000000491000-memory.dmp

        memory/1348-134-0x0000000004970000-0x00000000049AD000-memory.dmp

        memory/1348-141-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

        memory/1348-193-0x0000000007440000-0x0000000007441000-memory.dmp

        memory/1348-148-0x00000000057A0000-0x00000000057A1000-memory.dmp

        memory/1348-150-0x0000000004B14000-0x0000000004B16000-memory.dmp

        memory/1348-149-0x0000000004B13000-0x0000000004B14000-memory.dmp

        memory/1348-147-0x0000000004B12000-0x0000000004B13000-memory.dmp

        memory/1348-145-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/1348-146-0x0000000004B10000-0x0000000004B11000-memory.dmp

        memory/1348-144-0x0000000000480000-0x00000000005CA000-memory.dmp

        memory/1348-143-0x0000000005740000-0x0000000005741000-memory.dmp

        memory/1348-135-0x0000000004B20000-0x0000000004B21000-memory.dmp

        memory/1348-142-0x0000000005630000-0x0000000005631000-memory.dmp

        memory/1348-139-0x0000000005020000-0x0000000005021000-memory.dmp

        memory/1348-192-0x0000000007310000-0x0000000007311000-memory.dmp

        memory/1348-191-0x0000000007130000-0x0000000007131000-memory.dmp

        memory/1348-137-0x00000000049F0000-0x0000000004A2C000-memory.dmp

        memory/1348-190-0x0000000007060000-0x0000000007061000-memory.dmp

        memory/1348-189-0x0000000006D00000-0x0000000006D01000-memory.dmp

        memory/1348-188-0x00000000066D0000-0x00000000066D1000-memory.dmp

        memory/1348-187-0x0000000006500000-0x0000000006501000-memory.dmp

        memory/1864-152-0x0000000000400000-0x00000000004D9000-memory.dmp

        memory/1864-151-0x0000000000770000-0x0000000000846000-memory.dmp

        memory/3044-117-0x0000000000F70000-0x0000000000F85000-memory.dmp

        memory/3848-174-0x0000000000400000-0x0000000000491000-memory.dmp

        memory/3848-173-0x00000000004A0000-0x000000000054E000-memory.dmp