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Analysis

  • max time kernel
    145s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2023, 04:12

General

  • Target

    8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f.exe

  • Size

    301KB

  • MD5

    531a942a943d149dd615d07a566cd06b

  • SHA1

    3112979189a6922f0090731dd1660299a0416afb

  • SHA256

    8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f

  • SHA512

    034b6db05a0805eacb26e18b6151fccf19496d9f7e48b23d235ee7fc3c30f9c9bb13fd4281f74c008d41da14b4e26a9efca674a1a5e74488733e16b83d058c3b

  • SSDEEP

    3072:KoF324VAoovHMp7WCC75csFtCDLpaD49uJbyeO8J:pGnoovH07h6cg8LpU49WI

Malware Config

Extracted

Family

smokeloader

Botnet

up4

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-file0.com/

http://file-file-file1.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 29 IoCs
  • Suspicious use of SendNotifyMessage 19 IoCs
  • Suspicious use of WriteProcessMemory 7 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\8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f.exe
    "C:\Users\Admin\AppData\Local\Temp\8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Users\Admin\AppData\Local\Temp\8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f.exe
      "C:\Users\Admin\AppData\Local\Temp\8e6e4b930b79cb66ece296d8bacc0225db53b48f362508dcc5e335b254055a7f.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2732
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2476
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x50c
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1192-8-0x0000000002230000-0x0000000002246000-memory.dmp

    Filesize

    88KB

  • memory/1192-17-0x00000000021F0000-0x00000000021F1000-memory.dmp

    Filesize

    4KB

  • memory/2476-20-0x0000000004120000-0x0000000004121000-memory.dmp

    Filesize

    4KB

  • memory/2476-21-0x0000000004120000-0x0000000004121000-memory.dmp

    Filesize

    4KB

  • memory/2584-1-0x00000000024C0000-0x00000000025C0000-memory.dmp

    Filesize

    1024KB

  • memory/2584-2-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2732-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2732-5-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2732-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2732-7-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2732-9-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB