Resubmissions

26-09-2021 14:45

210926-r4qb2aehcm 10

26-09-2021 14:41

210926-r2wq2afaa9 10

Analysis

  • max time kernel
    601s
  • max time network
    593s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-09-2021 14:45

General

  • Target

    c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe

  • Size

    139KB

  • MD5

    3e201fc20a90e669990e2994d2114b83

  • SHA1

    24bfc9636c793e7ceb309b08e319b2d925a080bd

  • SHA256

    c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24

  • SHA512

    4dae9203c1003ca32600d153d7a9f08fa3c50d7c665ee81d4d7608d8f47354e48493d4bb39af2a3259c7882ca0ba38f4db52033b0df3ddf4321cb7118b228591

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

Bliss

C2

185.237.98.178:62607

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

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 Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • 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 9 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 2 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 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 2 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 FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe
    "C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe
      "C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:816
  • C:\Users\Admin\AppData\Local\Temp\D8C7.exe
    C:\Users\Admin\AppData\Local\Temp\D8C7.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:2016
  • C:\Users\Admin\AppData\Local\Temp\DED3.exe
    C:\Users\Admin\AppData\Local\Temp\DED3.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\DED3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3404
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1152
  • C:\Users\Admin\AppData\Local\Temp\E442.exe
    C:\Users\Admin\AppData\Local\Temp\E442.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:64
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 1308
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3208
  • C:\Users\Admin\AppData\Local\Temp\E945.exe
    C:\Users\Admin\AppData\Local\Temp\E945.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1812
    • 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:1116
    • 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:688
    • 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:3504
  • C:\Users\Admin\AppData\Roaming\dtcvist
    C:\Users\Admin\AppData\Roaming\dtcvist
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Roaming\dtcvist
      C:\Users\Admin\AppData\Roaming\dtcvist
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2692

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/64-134-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/64-132-0x00000000006C0000-0x00000000006ED000-memory.dmp

    Filesize

    180KB

  • memory/636-114-0x00000000021C0000-0x00000000021C9000-memory.dmp

    Filesize

    36KB

  • memory/688-177-0x00000000026D0000-0x00000000026F2000-memory.dmp

    Filesize

    136KB

  • memory/688-196-0x00000000026B0000-0x00000000026B1000-memory.dmp

    Filesize

    4KB

  • memory/688-173-0x0000000002370000-0x0000000002393000-memory.dmp

    Filesize

    140KB

  • memory/688-195-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/688-201-0x00000000026B3000-0x00000000026B4000-memory.dmp

    Filesize

    4KB

  • memory/688-202-0x00000000026B4000-0x00000000026B6000-memory.dmp

    Filesize

    8KB

  • memory/688-200-0x00000000026B2000-0x00000000026B3000-memory.dmp

    Filesize

    4KB

  • memory/688-194-0x00000000005F0000-0x000000000073A000-memory.dmp

    Filesize

    1.3MB

  • memory/816-115-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1116-199-0x0000000002673000-0x0000000002674000-memory.dmp

    Filesize

    4KB

  • memory/1116-198-0x0000000002672000-0x0000000002673000-memory.dmp

    Filesize

    4KB

  • memory/1116-197-0x0000000002670000-0x0000000002671000-memory.dmp

    Filesize

    4KB

  • memory/1116-172-0x0000000002260000-0x000000000227F000-memory.dmp

    Filesize

    124KB

  • memory/1116-192-0x0000000001FA0000-0x0000000001FD0000-memory.dmp

    Filesize

    192KB

  • memory/1116-193-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/1116-176-0x0000000002490000-0x00000000024AE000-memory.dmp

    Filesize

    120KB

  • memory/1116-203-0x0000000002674000-0x0000000002676000-memory.dmp

    Filesize

    8KB

  • memory/1812-139-0x0000000000780000-0x0000000000781000-memory.dmp

    Filesize

    4KB

  • memory/2016-158-0x0000000007030000-0x0000000007031000-memory.dmp

    Filesize

    4KB

  • memory/2016-160-0x0000000006D20000-0x0000000006D21000-memory.dmp

    Filesize

    4KB

  • memory/2016-124-0x0000000077C10000-0x0000000077D9E000-memory.dmp

    Filesize

    1.6MB

  • memory/2016-147-0x0000000005600000-0x0000000005601000-memory.dmp

    Filesize

    4KB

  • memory/2016-130-0x0000000005CD0000-0x0000000005CD1000-memory.dmp

    Filesize

    4KB

  • memory/2016-143-0x00000000056B0000-0x00000000056B1000-memory.dmp

    Filesize

    4KB

  • memory/2016-131-0x0000000003440000-0x0000000003441000-memory.dmp

    Filesize

    4KB

  • memory/2016-154-0x0000000006D40000-0x0000000006D41000-memory.dmp

    Filesize

    4KB

  • memory/2016-156-0x0000000007440000-0x0000000007441000-memory.dmp

    Filesize

    4KB

  • memory/2016-133-0x00000000057D0000-0x00000000057D1000-memory.dmp

    Filesize

    4KB

  • memory/2016-162-0x0000000007A70000-0x0000000007A71000-memory.dmp

    Filesize

    4KB

  • memory/2016-161-0x0000000007390000-0x0000000007391000-memory.dmp

    Filesize

    4KB

  • memory/2016-125-0x0000000000820000-0x0000000000821000-memory.dmp

    Filesize

    4KB

  • memory/2016-159-0x0000000007E70000-0x0000000007E71000-memory.dmp

    Filesize

    4KB

  • memory/2016-144-0x00000000055C0000-0x00000000055C1000-memory.dmp

    Filesize

    4KB

  • memory/2016-157-0x0000000006F10000-0x0000000006F11000-memory.dmp

    Filesize

    4KB

  • memory/2692-135-0x00000000021C0000-0x0000000002250000-memory.dmp

    Filesize

    576KB

  • memory/2692-142-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/3052-117-0x00000000004D0000-0x00000000004E6000-memory.dmp

    Filesize

    88KB

  • memory/3052-223-0x0000000000730000-0x0000000000746000-memory.dmp

    Filesize

    88KB

  • memory/3504-191-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/3504-189-0x0000000002140000-0x00000000021FC000-memory.dmp

    Filesize

    752KB

  • memory/3504-204-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB