Analysis

  • max time kernel
    300s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-02-2024 04:48

General

  • Target

    77d4e1a7b1dc1a646cb0955793d2cd8734d04d2f0ed48c8a72a029b94063a428.exe

  • Size

    215KB

  • MD5

    100f4f22057827ac5d99eaf584e5b19e

  • SHA1

    8114fa644df30503d6ea1f66b4ceb3a46be8722b

  • SHA256

    77d4e1a7b1dc1a646cb0955793d2cd8734d04d2f0ed48c8a72a029b94063a428

  • SHA512

    5da698636c2ec0530193c45314ee197c0f4ce984d7297a1cdfcb335489822dbd7a7d98f046452a2d7610dbc1497854a972a4791984ed897fc5b4861510048939

  • SSDEEP

    3072:LGtI/j23/AgttwO5NHs6eUIuaEiWfKleOm5UWp2:L0L/AgttZM69aEiWfK7q

Malware Config

Extracted

Family

smokeloader

Botnet

pub3

Extracted

Family

smokeloader

Version

2022

C2

http://sjyey.com/tmp/index.php

http://babonwo.ru/tmp/index.php

http://mth.com.ua/tmp/index.php

http://piratia.pw/tmp/index.php

http://go-piratia.ru/tmp/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77d4e1a7b1dc1a646cb0955793d2cd8734d04d2f0ed48c8a72a029b94063a428.exe
    "C:\Users\Admin\AppData\Local\Temp\77d4e1a7b1dc1a646cb0955793d2cd8734d04d2f0ed48c8a72a029b94063a428.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1968
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {C7A08A51-5EBD-4221-BD25-E0DAFB7E3C3C} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Users\Admin\AppData\Roaming\afrifiv
      C:\Users\Admin\AppData\Roaming\afrifiv
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    215KB

    MD5

    100f4f22057827ac5d99eaf584e5b19e

    SHA1

    8114fa644df30503d6ea1f66b4ceb3a46be8722b

    SHA256

    77d4e1a7b1dc1a646cb0955793d2cd8734d04d2f0ed48c8a72a029b94063a428

    SHA512

    5da698636c2ec0530193c45314ee197c0f4ce984d7297a1cdfcb335489822dbd7a7d98f046452a2d7610dbc1497854a972a4791984ed897fc5b4861510048939

  • memory/1200-4-0x0000000002F20000-0x0000000002F36000-memory.dmp

    Filesize

    88KB

  • memory/1200-16-0x00000000030A0000-0x00000000030B6000-memory.dmp

    Filesize

    88KB

  • memory/1968-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

    Filesize

    1024KB

  • memory/1968-2-0x0000000000220000-0x000000000022B000-memory.dmp

    Filesize

    44KB

  • memory/1968-3-0x0000000000400000-0x0000000002D35000-memory.dmp

    Filesize

    41.2MB

  • memory/1968-5-0x0000000000400000-0x0000000002D35000-memory.dmp

    Filesize

    41.2MB

  • memory/1976-14-0x0000000002EE0000-0x0000000002FE0000-memory.dmp

    Filesize

    1024KB

  • memory/1976-15-0x0000000000400000-0x0000000002D35000-memory.dmp

    Filesize

    41.2MB

  • memory/1976-17-0x0000000000400000-0x0000000002D35000-memory.dmp

    Filesize

    41.2MB