Analysis

  • max time kernel
    151s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-03-2023 02:10

General

  • Target

    cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3.exe

  • Size

    330KB

  • MD5

    6e79eebefe0bfae39c06ce88ff06958d

  • SHA1

    120c4bbd53ddceb8308e847cb4983738af295c96

  • SHA256

    cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3

  • SHA512

    c1771c5d5497936614e971380a0de92a1fecd2df2b227168ce942e3e541aa26a3ec26a2ce0bfee58c89e55c50aefb743b4f9189a95856028fa18a1370c40d2c2

  • SSDEEP

    3072:32vlMNE1iLueiV8MIsPuUuNjI7xd7Xp8OQXJr8wjC1+2DsYRVwtMESH:mvEE1iLliVFPC5I7rXpPIzC1rNESH

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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 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 1 IoCs
  • Suspicious use of WriteProcessMemory 6 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\cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3.exe
    "C:\Users\Admin\AppData\Local\Temp\cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:820
    • C:\Users\Admin\AppData\Local\Temp\cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3.exe
      "C:\Users\Admin\AppData\Local\Temp\cc621323e57e22e483517f633fb4f9248220a0cd8a69cd0674ade45ffcdd6ce3.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3600

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/820-135-0x0000000004700000-0x0000000004709000-memory.dmp
    Filesize

    36KB

  • memory/3080-137-0x0000000000B00000-0x0000000000B16000-memory.dmp
    Filesize

    88KB

  • memory/3600-134-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3600-136-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3600-138-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB