Resubmissions

26-09-2021 14:45

210926-r4qb2aehcm 10

26-09-2021 14:41

210926-r2wq2afaa9 10

Analysis

  • max time kernel
    602s
  • max time network
    423s
  • platform
    windows11_x64
  • resource
    win11
  • 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

redline

Botnet

z0rm1onbuild

C2

45.156.21.209:56326

Extracted

Family

redline

Botnet

installszxc

C2

138.124.186.2:27999

Extracted

Family

raccoon

Botnet

b2f2e53f9e27f901d453d8f6fbafe1b4d5266bb7

Attributes
  • url4cnc

    https://t.me/hcdrom1

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 3 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 5 IoCs
  • 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

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

    suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

  • Arkei Stealer Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Loads dropped DLL 4 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 5 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 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 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 5 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 37 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Enumerates system info in registry 2 TTPs 10 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies registry class 4 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\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe
    "C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3532
    • 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:3808
  • C:\Windows\System32\sihclient.exe
    C:\Windows\System32\sihclient.exe /cv pVzHgpXms02TJxnTGiup5w.0.2
    1⤵
    • Modifies data under HKEY_USERS
    PID:4948
  • C:\Users\Admin\AppData\Local\Temp\4BE.exe
    C:\Users\Admin\AppData\Local\Temp\4BE.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Users\Admin\AppData\Local\Temp\4BE.exe
      C:\Users\Admin\AppData\Local\Temp\4BE.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:4648
  • C:\Users\Admin\AppData\Local\Temp\10A5.exe
    C:\Users\Admin\AppData\Local\Temp\10A5.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:3708
  • C:\Users\Admin\AppData\Local\Temp\1AE7.exe
    C:\Users\Admin\AppData\Local\Temp\1AE7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\ProgramData\Stub.exe
      "C:\ProgramData\Stub.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3120
  • C:\Users\Admin\AppData\Local\Temp\1F7C.exe
    C:\Users\Admin\AppData\Local\Temp\1F7C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4676
  • C:\Users\Admin\AppData\Local\Temp\2912.exe
    C:\Users\Admin\AppData\Local\Temp\2912.exe
    1⤵
    • Executes dropped EXE
    PID:3020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 300
      2⤵
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:5056
  • C:\Users\Admin\AppData\Local\Temp\38A4.exe
    C:\Users\Admin\AppData\Local\Temp\38A4.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\38A4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:3908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3020 -ip 3020
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    • Suspicious use of WriteProcessMemory
    PID:4740
  • C:\Users\Admin\AppData\Local\Temp\47A9.exe
    C:\Users\Admin\AppData\Local\Temp\47A9.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:4656
  • C:\Users\Admin\AppData\Local\Temp\4E12.exe
    C:\Users\Admin\AppData\Local\Temp\4E12.exe
    1⤵
    • Executes dropped EXE
    PID:1800
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 300
      2⤵
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      PID:3664
  • C:\Users\Admin\AppData\Local\Temp\5622.exe
    C:\Users\Admin\AppData\Local\Temp\5622.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5622.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:4132
  • C:\Users\Admin\AppData\Local\Temp\5AD6.exe
    C:\Users\Admin\AppData\Local\Temp\5AD6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1572
    • 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:1428
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 328
        3⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:1588
    • 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:1472
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 320
        3⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:4380
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      PID:1864
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 296
        3⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:2352
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1800 -ip 1800
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    • Suspicious use of WriteProcessMemory
    PID:4332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1428 -ip 1428
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    PID:4268
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1864 -ip 1864
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    PID:2868
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 1472 -ip 1472
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    PID:3804
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:4504
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
    1⤵
      PID:4776

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1104-209-0x00000000029E0000-0x00000000029E1000-memory.dmp

      Filesize

      4KB

    • memory/1104-211-0x0000000002B20000-0x0000000002B21000-memory.dmp

      Filesize

      4KB

    • memory/1104-214-0x0000000002B50000-0x0000000002B51000-memory.dmp

      Filesize

      4KB

    • memory/1104-213-0x0000000002B40000-0x0000000002B41000-memory.dmp

      Filesize

      4KB

    • memory/1104-212-0x0000000002B30000-0x0000000002B31000-memory.dmp

      Filesize

      4KB

    • memory/1104-215-0x0000000000460000-0x0000000000BF3000-memory.dmp

      Filesize

      7.6MB

    • memory/1104-210-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

      Filesize

      4KB

    • memory/1428-293-0x00000000007C0000-0x00000000007F0000-memory.dmp

      Filesize

      192KB

    • memory/1472-295-0x0000000002200000-0x0000000002237000-memory.dmp

      Filesize

      220KB

    • memory/1572-260-0x0000000000B20000-0x0000000000B21000-memory.dmp

      Filesize

      4KB

    • memory/1800-269-0x0000000002220000-0x00000000022B0000-memory.dmp

      Filesize

      576KB

    • memory/1864-294-0x0000000002230000-0x00000000022EC000-memory.dmp

      Filesize

      752KB

    • memory/2904-252-0x0000000002160000-0x000000000218D000-memory.dmp

      Filesize

      180KB

    • memory/2904-253-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/3020-203-0x00000000021C0000-0x0000000002250000-memory.dmp

      Filesize

      576KB

    • memory/3120-216-0x0000000004DA0000-0x00000000053B8000-memory.dmp

      Filesize

      6.1MB

    • memory/3120-198-0x0000000000530000-0x0000000000531000-memory.dmp

      Filesize

      4KB

    • memory/3208-149-0x000000000C770000-0x000000000C786000-memory.dmp

      Filesize

      88KB

    • memory/3208-171-0x0000000005230000-0x0000000005246000-memory.dmp

      Filesize

      88KB

    • memory/3532-148-0x00000000005B0000-0x00000000005B9000-memory.dmp

      Filesize

      36KB

    • memory/3708-248-0x0000000008410000-0x0000000008411000-memory.dmp

      Filesize

      4KB

    • memory/3708-182-0x00000000062C0000-0x00000000062C1000-memory.dmp

      Filesize

      4KB

    • memory/3708-178-0x0000000006880000-0x0000000006881000-memory.dmp

      Filesize

      4KB

    • memory/3708-166-0x0000000000F90000-0x0000000000F91000-memory.dmp

      Filesize

      4KB

    • memory/3708-183-0x00000000063F0000-0x00000000063F1000-memory.dmp

      Filesize

      4KB

    • memory/3708-185-0x0000000006500000-0x0000000006501000-memory.dmp

      Filesize

      4KB

    • memory/3708-239-0x0000000008120000-0x0000000008121000-memory.dmp

      Filesize

      4KB

    • memory/3708-240-0x0000000008820000-0x0000000008821000-memory.dmp

      Filesize

      4KB

    • memory/3708-186-0x0000000006320000-0x0000000006321000-memory.dmp

      Filesize

      4KB

    • memory/3708-249-0x0000000009300000-0x0000000009301000-memory.dmp

      Filesize

      4KB

    • memory/3708-191-0x0000000006670000-0x0000000006671000-memory.dmp

      Filesize

      4KB

    • memory/3708-245-0x00000000082F0000-0x00000000082F1000-memory.dmp

      Filesize

      4KB

    • memory/3708-190-0x0000000006250000-0x0000000006251000-memory.dmp

      Filesize

      4KB

    • memory/3808-147-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/4608-168-0x00000000003B0000-0x00000000003B1000-memory.dmp

      Filesize

      4KB

    • memory/4608-189-0x0000000004D70000-0x0000000004DD6000-memory.dmp

      Filesize

      408KB

    • memory/4608-176-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

      Filesize

      4KB

    • memory/4608-179-0x00000000050F0000-0x00000000050F1000-memory.dmp

      Filesize

      4KB

    • memory/4656-222-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

      Filesize

      4KB

    • memory/4656-229-0x0000000005A40000-0x0000000005A41000-memory.dmp

      Filesize

      4KB

    • memory/4676-181-0x0000000002C30000-0x0000000002C31000-memory.dmp

      Filesize

      4KB

    • memory/4676-270-0x000000001B734000-0x000000001B735000-memory.dmp

      Filesize

      4KB

    • memory/4676-177-0x0000000002AD0000-0x0000000002AEE000-memory.dmp

      Filesize

      120KB

    • memory/4676-262-0x000000001CAE0000-0x000000001CAE1000-memory.dmp

      Filesize

      4KB

    • memory/4676-175-0x000000001B730000-0x000000001B732000-memory.dmp

      Filesize

      8KB

    • memory/4676-170-0x0000000000900000-0x0000000000901000-memory.dmp

      Filesize

      4KB

    • memory/4676-180-0x000000001C150000-0x000000001C151000-memory.dmp

      Filesize

      4KB

    • memory/4676-230-0x000000001CC70000-0x000000001CC71000-memory.dmp

      Filesize

      4KB

    • memory/4676-184-0x0000000002C90000-0x0000000002C91000-memory.dmp

      Filesize

      4KB

    • memory/4676-220-0x000000001C570000-0x000000001C571000-memory.dmp

      Filesize

      4KB

    • memory/4676-241-0x000000001B732000-0x000000001B734000-memory.dmp

      Filesize

      8KB

    • memory/4676-238-0x000000001C4A0000-0x000000001C4A1000-memory.dmp

      Filesize

      4KB

    • memory/4676-237-0x000000001C940000-0x000000001C941000-memory.dmp

      Filesize

      4KB