Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16-03-2023 10:18

General

  • Target

    915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047.exe

  • Size

    173KB

  • MD5

    593e36fe2c24170834d200de29e40fbe

  • SHA1

    ff75b26789424de6f0ca2628d95032d434b4cbac

  • SHA256

    915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047

  • SHA512

    abb82bcf6c3df41259084d469546ccc2039a663682d8e584b8c3e30c776377e3a73ade78f9e2f789299fa335171d1cadf0e68cf052bdd0f50eeac0492401dcc0

  • SSDEEP

    3072:kPoPnYWs76TAbxcpMbjS46SieWhx4dw/k7MgLDw0OeAps1XJX:fvjcGgZ6aax0eSMgLDw2J1

Malware Config

Extracted

Family

smokeloader

Botnet

lab

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047.exe
    "C:\Users\Admin\AppData\Local\Temp\915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047.exe
      "C:\Users\Admin\AppData\Local\Temp\915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2112
  • C:\Users\Admin\AppData\Roaming\djaefja
    C:\Users\Admin\AppData\Roaming\djaefja
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3108
    • C:\Users\Admin\AppData\Roaming\djaefja
      C:\Users\Admin\AppData\Roaming\djaefja
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:4928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\djaefja

    Filesize

    173KB

    MD5

    593e36fe2c24170834d200de29e40fbe

    SHA1

    ff75b26789424de6f0ca2628d95032d434b4cbac

    SHA256

    915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047

    SHA512

    abb82bcf6c3df41259084d469546ccc2039a663682d8e584b8c3e30c776377e3a73ade78f9e2f789299fa335171d1cadf0e68cf052bdd0f50eeac0492401dcc0

  • C:\Users\Admin\AppData\Roaming\djaefja

    Filesize

    173KB

    MD5

    593e36fe2c24170834d200de29e40fbe

    SHA1

    ff75b26789424de6f0ca2628d95032d434b4cbac

    SHA256

    915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047

    SHA512

    abb82bcf6c3df41259084d469546ccc2039a663682d8e584b8c3e30c776377e3a73ade78f9e2f789299fa335171d1cadf0e68cf052bdd0f50eeac0492401dcc0

  • C:\Users\Admin\AppData\Roaming\djaefja

    Filesize

    173KB

    MD5

    593e36fe2c24170834d200de29e40fbe

    SHA1

    ff75b26789424de6f0ca2628d95032d434b4cbac

    SHA256

    915a66584e7280aa967eb27ba754211b9f210dc45c88410540c61adb2fd72047

    SHA512

    abb82bcf6c3df41259084d469546ccc2039a663682d8e584b8c3e30c776377e3a73ade78f9e2f789299fa335171d1cadf0e68cf052bdd0f50eeac0492401dcc0

  • memory/1804-122-0x00000000006E0000-0x00000000006E9000-memory.dmp

    Filesize

    36KB

  • memory/2112-121-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2112-123-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2112-125-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3224-124-0x00000000008D0000-0x00000000008E6000-memory.dmp

    Filesize

    88KB

  • memory/3224-140-0x0000000000960000-0x0000000000976000-memory.dmp

    Filesize

    88KB

  • memory/4928-139-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4928-143-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB