Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2024 15:38

General

  • Target

    bc2c52a3f341f8f93622247caf1851c3.exe

  • Size

    317KB

  • MD5

    bc2c52a3f341f8f93622247caf1851c3

  • SHA1

    f5350c12bf2e1efe8e28a47c317824fdf7ae77c4

  • SHA256

    dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405

  • SHA512

    e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

  • SSDEEP

    6144:zPWw0xrvZVKKonZoCvUmzC2oYymKcOEqCwvS9ywfnf85w:Cw0hXKKSqBmzCOAcBqCwvS9ywH8y

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe
    "C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2384
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B93AD76B-FF7A-48BF-8DCC-782CC24C8835} S-1-5-21-406356229-2805545415-1236085040-1000:IKJSPGIM\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Users\Admin\AppData\Roaming\eeabcfi
      C:\Users\Admin\AppData\Roaming\eeabcfi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    317KB

    MD5

    bc2c52a3f341f8f93622247caf1851c3

    SHA1

    f5350c12bf2e1efe8e28a47c317824fdf7ae77c4

    SHA256

    dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405

    SHA512

    e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

  • memory/944-14-0x0000000000A40000-0x0000000000B40000-memory.dmp

    Filesize

    1024KB

  • memory/944-15-0x0000000000400000-0x0000000000906000-memory.dmp

    Filesize

    5.0MB

  • memory/944-19-0x0000000000400000-0x0000000000906000-memory.dmp

    Filesize

    5.0MB

  • memory/1272-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

    Filesize

    88KB

  • memory/1272-16-0x00000000029C0000-0x00000000029D6000-memory.dmp

    Filesize

    88KB

  • memory/2384-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

    Filesize

    1024KB

  • memory/2384-2-0x0000000000020000-0x0000000000029000-memory.dmp

    Filesize

    36KB

  • memory/2384-3-0x0000000000400000-0x0000000000906000-memory.dmp

    Filesize

    5.0MB

  • memory/2384-5-0x0000000000400000-0x0000000000906000-memory.dmp

    Filesize

    5.0MB