Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27/12/2021, 05:41

General

  • Target
    b85c7fb598909a1cb30195da03a9a96e.exe
  • Size 331KB
  • Sample211227-gdfd2aagfr
  • SHA256 cdc7207558b703ce70e83a15a5d2f4fa30c33215870558df2ac02bf746ea5db7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family
  • raccoon

Botnet
  • 10da56e7e71e97bdc1f36eb76813bbc3231de7e4

Attributes
  • url4cnc

    http://194.180.174.53/capibar

    http://91.219.236.18/capibar

    http://194.180.174.41/capibar

    http://91.219.236.148/capibar

    https://t.me/capibar

rc4.plain
rc4.plain

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • 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 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

  • Arkei Stealer Payload 4 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 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 web browsers 2 TTPs

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

  • 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 3 IoCs
  • Suspicious use of SetThreadContext 4 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 6 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 58 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b85c7fb598909a1cb30195da03a9a96e.exe
    "C:\Users\Admin\AppData\Local\Temp\b85c7fb598909a1cb30195da03a9a96e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Users\Admin\AppData\Local\Temp\b85c7fb598909a1cb30195da03a9a96e.exe
      "C:\Users\Admin\AppData\Local\Temp\b85c7fb598909a1cb30195da03a9a96e.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4076
  • C:\Users\Admin\AppData\Local\Temp\8FF7.exe
    C:\Users\Admin\AppData\Local\Temp\8FF7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2800
  • C:\Users\Admin\AppData\Local\Temp\FA1C.exe
    C:\Users\Admin\AppData\Local\Temp\FA1C.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\FA1C.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:968
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1264
  • C:\Users\Admin\AppData\Local\Temp\FE24.exe
    C:\Users\Admin\AppData\Local\Temp\FE24.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Users\Admin\AppData\Local\Temp\FE24.exe
      C:\Users\Admin\AppData\Local\Temp\FE24.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2372
  • C:\Users\Admin\AppData\Local\Temp\55BB.exe
    C:\Users\Admin\AppData\Local\Temp\55BB.exe
    1⤵
    • Executes dropped EXE
    PID:1952
  • C:\Users\Admin\AppData\Local\Temp\5B4A.exe
    C:\Users\Admin\AppData\Local\Temp\5B4A.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\Users\Admin\AppData\Local\Temp\5B4A.exe
      C:\Users\Admin\AppData\Local\Temp\5B4A.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2276
  • C:\Users\Admin\AppData\Local\Temp\609B.exe
    C:\Users\Admin\AppData\Local\Temp\609B.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\609B.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:604
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1436
  • C:\Users\Admin\AppData\Local\Temp\6743.exe
    C:\Users\Admin\AppData\Local\Temp\6743.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3232
  • C:\Users\Admin\AppData\Local\Temp\7482.exe
    C:\Users\Admin\AppData\Local\Temp\7482.exe
    1⤵
    • Executes dropped EXE
    PID:2920
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 400
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4048
  • C:\Users\Admin\AppData\Local\Temp\7F32.exe
    C:\Users\Admin\AppData\Local\Temp\7F32.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Users\Admin\AppData\Local\Temp\7F32.exe
      C:\Users\Admin\AppData\Local\Temp\7F32.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:64

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/64-243-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/324-148-0x0000000000AA0000-0x0000000000B2A000-memory.dmp

        memory/324-150-0x0000000005360000-0x00000000053D6000-memory.dmp

        memory/324-151-0x0000000005300000-0x000000000531E000-memory.dmp

        memory/324-156-0x0000000005BC0000-0x00000000060BE000-memory.dmp

        memory/324-155-0x0000000002D20000-0x0000000002D21000-memory.dmp

        memory/324-154-0x0000000005520000-0x0000000005521000-memory.dmp

        memory/324-147-0x0000000000AA0000-0x0000000000B2A000-memory.dmp

        memory/1872-238-0x0000000003080000-0x000000000309E000-memory.dmp

        memory/1872-236-0x0000000005510000-0x0000000005511000-memory.dmp

        memory/1872-235-0x0000000005470000-0x00000000054E6000-memory.dmp

        memory/1872-234-0x0000000000B80000-0x0000000000C0A000-memory.dmp

        memory/1872-233-0x0000000000B80000-0x0000000000C0A000-memory.dmp

        memory/1872-237-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

        memory/1872-239-0x0000000005A20000-0x0000000005F1E000-memory.dmp

        memory/1952-227-0x0000000000890000-0x000000000093E000-memory.dmp

        memory/1952-229-0x0000000000400000-0x0000000000885000-memory.dmp

        memory/1952-228-0x00000000025C0000-0x0000000002652000-memory.dmp

        memory/1952-219-0x0000000002520000-0x00000000025B5000-memory.dmp

        memory/1952-220-0x0000000000400000-0x0000000000885000-memory.dmp

        memory/1952-225-0x0000000000400000-0x0000000000885000-memory.dmp

        memory/2100-152-0x00000000001C0000-0x00000000001DC000-memory.dmp

        memory/2100-153-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/2120-202-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-205-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-203-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-196-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-201-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-204-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-200-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-212-0x0000000077CF0000-0x0000000077E7E000-memory.dmp

        memory/2120-199-0x0000000000C10000-0x0000000000CBE000-memory.dmp

        memory/2120-198-0x00000000759A0000-0x0000000075B62000-memory.dmp

        memory/2120-197-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

        memory/2120-193-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2120-194-0x0000000001230000-0x0000000001628000-memory.dmp

        memory/2372-179-0x00000000070F0000-0x00000000072B2000-memory.dmp

        memory/2372-164-0x0000000005540000-0x0000000005552000-memory.dmp

        memory/2372-163-0x0000000005B20000-0x0000000006126000-memory.dmp

        memory/2372-162-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2372-161-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2372-166-0x00000000055A0000-0x00000000055DE000-memory.dmp

        memory/2372-157-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2372-180-0x00000000077F0000-0x0000000007D1C000-memory.dmp

        memory/2372-178-0x0000000006490000-0x00000000064AE000-memory.dmp

        memory/2372-177-0x00000000064F0000-0x0000000006582000-memory.dmp

        memory/2372-176-0x00000000063D0000-0x0000000006446000-memory.dmp

        memory/2372-175-0x0000000005920000-0x0000000005986000-memory.dmp

        memory/2372-165-0x0000000005670000-0x000000000577A000-memory.dmp

        memory/2372-174-0x0000000006630000-0x0000000006B2E000-memory.dmp

        memory/2372-167-0x00000000055E0000-0x000000000562B000-memory.dmp

        memory/2372-168-0x0000000005510000-0x0000000005B16000-memory.dmp

        memory/2800-133-0x0000000005880000-0x0000000005892000-memory.dmp

        memory/2800-125-0x0000000001340000-0x0000000001341000-memory.dmp

        memory/2800-139-0x0000000005940000-0x000000000598B000-memory.dmp

        memory/2800-123-0x0000000000070000-0x0000000000236000-memory.dmp

        memory/2800-124-0x0000000000070000-0x0000000000236000-memory.dmp

        memory/2800-138-0x0000000076050000-0x0000000077398000-memory.dmp

        memory/2800-137-0x00000000750B0000-0x0000000075634000-memory.dmp

        memory/2800-136-0x0000000005930000-0x0000000005931000-memory.dmp

        memory/2800-128-0x0000000074E00000-0x0000000074EF1000-memory.dmp

        memory/2800-127-0x0000000001490000-0x00000000014D5000-memory.dmp

        memory/2800-135-0x00000000058E0000-0x000000000591E000-memory.dmp

        memory/2800-134-0x0000000005A50000-0x0000000005B5A000-memory.dmp

        memory/2800-140-0x0000000070B30000-0x0000000070B7B000-memory.dmp

        memory/2800-129-0x0000000000070000-0x0000000000236000-memory.dmp

        memory/2800-130-0x0000000000070000-0x0000000000236000-memory.dmp

        memory/2800-132-0x0000000005F50000-0x0000000006556000-memory.dmp

        memory/2800-131-0x00000000728E0000-0x0000000072960000-memory.dmp

        memory/2800-126-0x00000000759A0000-0x0000000075B62000-memory.dmp

        memory/2920-226-0x0000000000BF0000-0x0000000000C50000-memory.dmp

        memory/2984-222-0x0000000002C40000-0x0000000002C56000-memory.dmp

        memory/2984-119-0x0000000000A00000-0x0000000000A16000-memory.dmp

        memory/3232-240-0x000001C372C90000-0x000001C372D06000-memory.dmp

        memory/3232-217-0x000001C370630000-0x000001C370642000-memory.dmp

        memory/3232-210-0x000001C3701E0000-0x000001C370288000-memory.dmp

        memory/3232-211-0x000001C370580000-0x000001C3705A4000-memory.dmp

        memory/3232-213-0x000001C370610000-0x000001C370612000-memory.dmp

        memory/3232-241-0x000001C370670000-0x000001C37068E000-memory.dmp

        memory/3232-218-0x000001C372880000-0x000001C3728BE000-memory.dmp

        memory/3232-209-0x000001C3701E0000-0x000001C370288000-memory.dmp

        memory/3232-215-0x000001C372990000-0x000001C372A9A000-memory.dmp

        memory/3232-214-0x000001C3705D0000-0x000001C3705F0000-memory.dmp

        memory/3260-116-0x0000000000030000-0x0000000000039000-memory.dmp

        memory/3260-115-0x0000000000661000-0x0000000000672000-memory.dmp

        memory/4076-117-0x0000000000400000-0x0000000000409000-memory.dmp