Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 15:12

General

  • Target

    3dd4ba94c558b54ba1fe639566cbc368.exe

  • Size

    237KB

  • MD5

    3dd4ba94c558b54ba1fe639566cbc368

  • SHA1

    8c44f1c918c3d2fd48694e8af653e473be3e02c1

  • SHA256

    c75b223b462ba88c62c1c8d848a845e7aeacc0ec0c96a7ecf1644e782accdd52

  • SHA512

    58e828507bd3be52ea340ed835c3dc06a655db0a067c746ef65e7382d2b09eb5e7d6847dc679b89539826b598749e60ddf62859e25930b8e586acc11228bb1fa

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

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • 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 Win32.Raccoon Stealer CnC Activity (dependency download)

    suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)

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

    suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

  • Arkei Stealer Payload 1 IoCs
  • Chinese Botnet Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 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 8 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 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe
    "C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe
      "C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2228
  • C:\Users\Admin\AppData\Local\Temp\FC29.exe
    C:\Users\Admin\AppData\Local\Temp\FC29.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:2680
  • C:\Users\Admin\AppData\Local\Temp\169.exe
    C:\Users\Admin\AppData\Local\Temp\169.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3148
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\169.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3880
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:2404
  • C:\Users\Admin\AppData\Local\Temp\7D3.exe
    C:\Users\Admin\AppData\Local\Temp\7D3.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 928
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3792
  • C:\Users\Admin\AppData\Local\Temp\DB0.exe
    C:\Users\Admin\AppData\Local\Temp\DB0.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
      "C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe"
      2⤵
      • Executes dropped EXE
      PID:340
    • C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
      "C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe"
      2⤵
      • Executes dropped EXE
      PID:1096
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Checks processor information in registry
      • Suspicious use of SetWindowsHookEx
      PID:2164

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/340-180-0x0000000004E02000-0x0000000004E03000-memory.dmp

    Filesize

    4KB

  • memory/340-177-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/340-173-0x0000000002210000-0x000000000222F000-memory.dmp

    Filesize

    124KB

  • memory/340-176-0x0000000000520000-0x0000000000550000-memory.dmp

    Filesize

    192KB

  • memory/340-203-0x0000000004E04000-0x0000000004E06000-memory.dmp

    Filesize

    8KB

  • memory/340-201-0x0000000007A30000-0x0000000007A31000-memory.dmp

    Filesize

    4KB

  • memory/340-182-0x0000000004E03000-0x0000000004E04000-memory.dmp

    Filesize

    4KB

  • memory/340-188-0x0000000004E00000-0x0000000004E01000-memory.dmp

    Filesize

    4KB

  • memory/340-181-0x0000000002470000-0x000000000248E000-memory.dmp

    Filesize

    120KB

  • memory/792-144-0x0000000000A30000-0x0000000000A31000-memory.dmp

    Filesize

    4KB

  • memory/1096-187-0x0000000000700000-0x0000000000701000-memory.dmp

    Filesize

    4KB

  • memory/1096-184-0x0000000002530000-0x0000000002552000-memory.dmp

    Filesize

    136KB

  • memory/1096-186-0x0000000000703000-0x0000000000704000-memory.dmp

    Filesize

    4KB

  • memory/1096-185-0x0000000000702000-0x0000000000703000-memory.dmp

    Filesize

    4KB

  • memory/1096-191-0x0000000000570000-0x00000000006BA000-memory.dmp

    Filesize

    1.3MB

  • memory/1096-194-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/1096-179-0x0000000002260000-0x0000000002283000-memory.dmp

    Filesize

    140KB

  • memory/1096-204-0x0000000000704000-0x0000000000706000-memory.dmp

    Filesize

    8KB

  • memory/2072-117-0x00000000021E0000-0x00000000021E9000-memory.dmp

    Filesize

    36KB

  • memory/2164-205-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB

  • memory/2164-175-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2164-174-0x0000000002180000-0x000000000223C000-memory.dmp

    Filesize

    752KB

  • memory/2228-115-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2264-138-0x00000000005A0000-0x00000000005CD000-memory.dmp

    Filesize

    180KB

  • memory/2264-139-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2648-118-0x0000000000B70000-0x0000000000B86000-memory.dmp

    Filesize

    88KB

  • memory/2680-130-0x0000000077C30000-0x0000000077DBE000-memory.dmp

    Filesize

    1.6MB

  • memory/2680-151-0x0000000007120000-0x0000000007121000-memory.dmp

    Filesize

    4KB

  • memory/2680-129-0x0000000005590000-0x0000000005591000-memory.dmp

    Filesize

    4KB

  • memory/2680-132-0x0000000003450000-0x0000000003451000-memory.dmp

    Filesize

    4KB

  • memory/2680-131-0x00000000033C0000-0x00000000033C1000-memory.dmp

    Filesize

    4KB

  • memory/2680-161-0x00000000070D0000-0x00000000070D1000-memory.dmp

    Filesize

    4KB

  • memory/2680-126-0x0000000003230000-0x0000000003231000-memory.dmp

    Filesize

    4KB

  • memory/2680-155-0x0000000006BF0000-0x0000000006BF1000-memory.dmp

    Filesize

    4KB

  • memory/2680-154-0x0000000007650000-0x0000000007651000-memory.dmp

    Filesize

    4KB

  • memory/2680-133-0x0000000003400000-0x0000000003401000-memory.dmp

    Filesize

    4KB

  • memory/2680-159-0x0000000006F00000-0x0000000006F01000-memory.dmp

    Filesize

    4KB

  • memory/2680-158-0x0000000006DE0000-0x0000000006DE1000-memory.dmp

    Filesize

    4KB

  • memory/2680-150-0x0000000006A20000-0x0000000006A21000-memory.dmp

    Filesize

    4KB

  • memory/2680-122-0x0000000000970000-0x0000000000971000-memory.dmp

    Filesize

    4KB

  • memory/2680-160-0x00000000069F0000-0x00000000069F1000-memory.dmp

    Filesize

    4KB

  • memory/2680-124-0x0000000005A90000-0x0000000005A91000-memory.dmp

    Filesize

    4KB

  • memory/3148-148-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/3148-147-0x00000000021C0000-0x0000000002250000-memory.dmp

    Filesize

    576KB