Analysis

  • max time kernel
    300s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    21-02-2024 04:49

General

  • Target

    1a0c9d76d6bd6cf708c1939bb3f4748ccb40b0a4b0c880c6eba432be1a5910f2.exe

  • Size

    135KB

  • MD5

    f44d0f75c3746989168af456468d553c

  • SHA1

    1bda6154c5dc86f5132fab036a30ae3b55041593

  • SHA256

    1a0c9d76d6bd6cf708c1939bb3f4748ccb40b0a4b0c880c6eba432be1a5910f2

  • SHA512

    524a44375acf65cc1daf98c4ed281ca8b6e8d128b0a76a05dd2a543c78d8357ea6e81baa1ad487a8f36280a4bd2c5c757e68467359e26876ba56328927ab406f

  • SSDEEP

    1536:93HKFCXebMDnye3MtblERG2DnWQezmfsHL7bcVnhzU+dhj1eE37i9SOpk6ovchdf:5HKCXeC3VdCHnE9Uch5p7iIXQEs1

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
  • 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\1a0c9d76d6bd6cf708c1939bb3f4748ccb40b0a4b0c880c6eba432be1a5910f2.exe
    "C:\Users\Admin\AppData\Local\Temp\1a0c9d76d6bd6cf708c1939bb3f4748ccb40b0a4b0c880c6eba432be1a5910f2.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1856
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {7A56E133-1CE5-4CD2-B9B3-616A7DE1379D} S-1-5-21-928733405-3780110381-2966456290-1000:VTILVGXH\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Users\Admin\AppData\Roaming\eieauga
      C:\Users\Admin\AppData\Roaming\eieauga
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    135KB

    MD5

    f44d0f75c3746989168af456468d553c

    SHA1

    1bda6154c5dc86f5132fab036a30ae3b55041593

    SHA256

    1a0c9d76d6bd6cf708c1939bb3f4748ccb40b0a4b0c880c6eba432be1a5910f2

    SHA512

    524a44375acf65cc1daf98c4ed281ca8b6e8d128b0a76a05dd2a543c78d8357ea6e81baa1ad487a8f36280a4bd2c5c757e68467359e26876ba56328927ab406f

  • memory/1244-4-0x00000000038B0000-0x00000000038C6000-memory.dmp

    Filesize

    88KB

  • memory/1244-16-0x00000000039D0000-0x00000000039E6000-memory.dmp

    Filesize

    88KB

  • memory/1856-1-0x0000000000920000-0x0000000000A20000-memory.dmp

    Filesize

    1024KB

  • memory/1856-2-0x0000000000220000-0x000000000022B000-memory.dmp

    Filesize

    44KB

  • memory/1856-3-0x0000000000400000-0x0000000000817000-memory.dmp

    Filesize

    4.1MB

  • memory/1856-5-0x0000000000400000-0x0000000000817000-memory.dmp

    Filesize

    4.1MB

  • memory/2612-14-0x0000000000900000-0x0000000000A00000-memory.dmp

    Filesize

    1024KB

  • memory/2612-15-0x0000000000400000-0x0000000000817000-memory.dmp

    Filesize

    4.1MB

  • memory/2612-17-0x0000000000400000-0x0000000000817000-memory.dmp

    Filesize

    4.1MB