Analysis

  • max time kernel
    152s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27-01-2022 06:33

General

  • Target

    3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159.exe

  • Size

    241KB

  • MD5

    b341d1a711a365f62f7e89f23871d53c

  • SHA1

    4294e840238eef1c74be58659ab28974f2d17038

  • SHA256

    3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159

  • SHA512

    90da0e59befd5fbc2a78478bd883851a3c29d6cc7daf6c70e62f979d18238ef7296e71be7966eaef5cfdaa163b046ec4dc931d8b7bcb3bd09dcad5dc2fa5ebfd

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159.exe
    "C:\Users\Admin\AppData\Local\Temp\3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Users\Admin\AppData\Local\Temp\3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159.exe
      "C:\Users\Admin\AppData\Local\Temp\3af52c8b82da1b19bb393bea564e25e82dacaca7644242f8ec444ed0ab418159.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3752

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3040-118-0x0000000001450000-0x0000000001466000-memory.dmp
    Filesize

    88KB

  • memory/3752-116-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3752-117-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB