Overview

overview

10

Static

static

10

smoki.exe

windows7-x64

10

smoki.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 19:48

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General

  • Target

    smoki.exe

  • Size

    37KB

  • MD5

    36da0a1d6f88800b96c2f4cf69ec79d0

  • SHA1

    c1e5c01a230c35931d061caa87cfcf2fa19e933f

  • SHA256

    9c9df8669f1b07ec66e7b82ac97e188412f82ce549fb3552cca84413005fec9f

  • SHA512

    801ec6d3f032d3bbae7f330ce709bcf5f22654265968e6ded73875fad89eed0323bb789c959aacb34b9267fc4b7c9400de5ad659303819b3bb4443819cd6a128

  • SSDEEP

    768:X3TAscKbB2s4iZ1/NPT3r0JxHWSLzyyiDj78C:HTjb/LhudW80n

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://rafraystore.ru/index.php

http://picwalldoor.ru/index.php

http://agentsuperpupervinil.ru/index.php

http://vivianstyler.ru/index.php

http://sephoraofficetz.ru/index.php

http://vikompalion.ru/index.php

http://ccbaminumpot.ru/index.php
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\smoki.exe
    "C:\Users\Admin\AppData\Local\Temp\smoki.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2880
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {A22C913C-3CE1-469B-A580-C79C8CC501AF} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Roaming\jefiiuu
      C:\Users\Admin\AppData\Roaming\jefiiuu
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2908

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\jefiiuu
    Filesize

    37KB

    MD5

    36da0a1d6f88800b96c2f4cf69ec79d0

    SHA1

    c1e5c01a230c35931d061caa87cfcf2fa19e933f

    SHA256

    9c9df8669f1b07ec66e7b82ac97e188412f82ce549fb3552cca84413005fec9f

    SHA512

    801ec6d3f032d3bbae7f330ce709bcf5f22654265968e6ded73875fad89eed0323bb789c959aacb34b9267fc4b7c9400de5ad659303819b3bb4443819cd6a128

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  • memory/1204-1-0x0000000002580000-0x0000000002596000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1204-11-0x00000000025B0000-0x00000000025C6000-memory.dmp
    Filesize

    88KB

    Download
  • memory/2880-0-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

    Download
  • memory/2880-2-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

    Download
  • memory/2908-10-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

    Download
  • memory/2908-13-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

    Download