Analysis

  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26/09/2021, 11:11

General

  • Target
    af0cc60704aed2e286cdf83a5c803b88.exe
  • Size 146KB
  • Sample210926-m99weaefdr
  • SHA256 92d3bcce6b0f038eeadea190ef6915090f843de525601fe4a61334cdab827bbf
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://naghenrietti1.top/

  • http://kimballiett2.top/

  • http://xadriettany3.top/

  • http://jebeccallis4.top/

  • http://nityanneron5.top/

  • http://umayaniela6.top/

  • http://lynettaram7.top/

  • http://sadineyalas8.top/

  • http://geenaldencia9.top/

  • http://aradysiusep10.top/

rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • installszxc

C2
  • 138.124.186.2:27999

Extracted

Family
  • redline

Botnet
  • z0rm1onbuild

C2
  • 45.156.21.209:56326

Extracted

Family
  • redline

Botnet
  • qq

C2
  • 135.181.142.223:30397

Extracted

Family
  • raccoon

Botnet
  • f6d7183c9e82d2a9b81e6c0608450aa66cefb51f

Attributes
  • url4cnc

    https://t.me/justoprostohello

rc4.plain
rc4.plain

Extracted

Family
  • raccoon

Botnet
  • d4d8e30c16491ca1c11f7aa675764335342faedf

Attributes
  • url4cnc

    https://t.me/hcdrom1

rc4.plain
rc4.plain

Extracted

Family
  • raccoon

Botnet
  • 5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    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 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

    suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 14 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af0cc60704aed2e286cdf83a5c803b88.exe
    "C:\Users\Admin\AppData\Local\Temp\af0cc60704aed2e286cdf83a5c803b88.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\af0cc60704aed2e286cdf83a5c803b88.exe
      "C:\Users\Admin\AppData\Local\Temp\af0cc60704aed2e286cdf83a5c803b88.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2092
  • C:\Users\Admin\AppData\Local\Temp\2D0.exe
    C:\Users\Admin\AppData\Local\Temp\2D0.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2608
    • C:\Users\Admin\AppData\Local\Temp\2D0.exe
      C:\Users\Admin\AppData\Local\Temp\2D0.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2328
  • C:\Users\Admin\AppData\Local\Temp\65B.exe
    C:\Users\Admin\AppData\Local\Temp\65B.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Users\Admin\AppData\Local\Temp\65B.exe
      C:\Users\Admin\AppData\Local\Temp\65B.exe
      2⤵
      • Executes dropped EXE
      PID:4056
    • C:\Users\Admin\AppData\Local\Temp\65B.exe
      C:\Users\Admin\AppData\Local\Temp\65B.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:968
  • C:\Users\Admin\AppData\Local\Temp\D90.exe
    C:\Users\Admin\AppData\Local\Temp\D90.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:3624
  • C:\Users\Admin\AppData\Local\Temp\1726.exe
    C:\Users\Admin\AppData\Local\Temp\1726.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\ProgramData\Stub.exe
      "C:\ProgramData\Stub.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3016
  • C:\Users\Admin\AppData\Local\Temp\1AB1.exe
    C:\Users\Admin\AppData\Local\Temp\1AB1.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:840
  • C:\Users\Admin\AppData\Local\Temp\231E.exe
    C:\Users\Admin\AppData\Local\Temp\231E.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Users\Admin\AppData\Local\Temp\5i7G0eD9xE.exe
      "C:\Users\Admin\AppData\Local\Temp\5i7G0eD9xE.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\schtasks.exe
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"
        3⤵
        • Creates scheduled task(s)
        PID:2656
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\231E.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1056
  • C:\Users\Admin\AppData\Local\Temp\285F.exe
    C:\Users\Admin\AppData\Local\Temp\285F.exe
    1⤵
    • Executes dropped EXE
    PID:68
  • C:\Users\Admin\AppData\Local\Temp\32A1.exe
    C:\Users\Admin\AppData\Local\Temp\32A1.exe
    1⤵
    • Executes dropped EXE
    PID:3436
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2152

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/68-203-0x0000000000400000-0x00000000004F2000-memory.dmp

        memory/68-202-0x0000000002170000-0x0000000002200000-memory.dmp

        memory/840-223-0x000000001C750000-0x000000001C751000-memory.dmp

        memory/840-217-0x000000001CF00000-0x000000001CF01000-memory.dmp

        memory/840-157-0x0000000000D90000-0x0000000000D91000-memory.dmp

        memory/840-159-0x0000000001500000-0x0000000001502000-memory.dmp

        memory/840-228-0x0000000001502000-0x0000000001504000-memory.dmp

        memory/840-219-0x000000001C9D0000-0x000000001C9D1000-memory.dmp

        memory/840-230-0x0000000001504000-0x0000000001505000-memory.dmp

        memory/840-216-0x000000001C800000-0x000000001C801000-memory.dmp

        memory/840-168-0x0000000001510000-0x000000000152E000-memory.dmp

        memory/840-171-0x000000001C320000-0x000000001C321000-memory.dmp

        memory/840-172-0x0000000002E20000-0x0000000002E21000-memory.dmp

        memory/840-173-0x0000000002E80000-0x0000000002E81000-memory.dmp

        memory/840-242-0x000000001CAA0000-0x000000001CAA1000-memory.dmp

        memory/968-175-0x0000000000400000-0x0000000000422000-memory.dmp

        memory/968-189-0x00000000054D0000-0x0000000005AD6000-memory.dmp

        memory/1108-158-0x0000000004F20000-0x0000000004F21000-memory.dmp

        memory/1108-152-0x0000000000510000-0x0000000000511000-memory.dmp

        memory/1512-245-0x00000000004B0000-0x000000000055E000-memory.dmp

        memory/1512-246-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/1796-117-0x00000000001D0000-0x00000000001D9000-memory.dmp

        memory/1868-194-0x0000000002200000-0x0000000002290000-memory.dmp

        memory/1868-195-0x0000000000400000-0x00000000004F2000-memory.dmp

        memory/2092-115-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/2608-137-0x00000000004B0000-0x00000000005FA000-memory.dmp

        memory/2704-127-0x0000000005570000-0x0000000005571000-memory.dmp

        memory/2704-128-0x0000000005530000-0x0000000005531000-memory.dmp

        memory/2704-130-0x0000000005700000-0x0000000005701000-memory.dmp

        memory/2704-125-0x0000000000D50000-0x0000000000D51000-memory.dmp

        memory/2704-129-0x0000000005C10000-0x0000000005C11000-memory.dmp

        memory/2788-251-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/2788-250-0x00000000004B0000-0x000000000055E000-memory.dmp

        memory/3016-174-0x0000000004E50000-0x0000000005456000-memory.dmp

        memory/3016-163-0x0000000000680000-0x0000000000681000-memory.dmp

        memory/3028-190-0x00000000031B0000-0x00000000031C6000-memory.dmp

        memory/3028-118-0x0000000001030000-0x0000000001046000-memory.dmp

        memory/3436-231-0x0000000002180000-0x0000000002210000-memory.dmp

        memory/3436-232-0x0000000000400000-0x00000000004F2000-memory.dmp

        memory/3624-214-0x0000000007340000-0x0000000007341000-memory.dmp

        memory/3624-196-0x0000000006CF0000-0x0000000006CF1000-memory.dmp

        memory/3624-145-0x0000000005430000-0x0000000005431000-memory.dmp

        memory/3624-146-0x0000000005440000-0x0000000005441000-memory.dmp

        memory/3624-148-0x0000000005480000-0x0000000005481000-memory.dmp

        memory/3624-144-0x0000000077590000-0x000000007771E000-memory.dmp

        memory/3624-200-0x00000000073F0000-0x00000000073F1000-memory.dmp

        memory/3624-204-0x0000000006FE0000-0x0000000006FE1000-memory.dmp

        memory/3624-226-0x0000000007A80000-0x0000000007A81000-memory.dmp

        memory/3624-143-0x0000000005550000-0x0000000005551000-memory.dmp

        memory/3624-139-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        memory/3624-141-0x0000000005A50000-0x0000000005A51000-memory.dmp

        memory/3624-142-0x00000000053C0000-0x00000000053C1000-memory.dmp