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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/07/2023, 17:12

General

  • Target

    577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804.exe

  • Size

    316KB

  • MD5

    7bc2c0fa031433648a2b770422f0b77c

  • SHA1

    aae47199d16495f21470dd9e80cc0c58f2f6e2d8

  • SHA256

    577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804

  • SHA512

    176dddaf02b941afbe5477e5e61d3c3dc784c15299be1941474aff3336ce1787ff95fcfdb7e86b4e2a64eec614e39027b8153f9780c67c68f76cf06cd59a21a6

  • SSDEEP

    3072:qYp/9g7Lz2nehtfRNGeN1Cur1kA3ZU0B4NJK5SGZSGFBY:FGLzbfGKn1kAi02TtKSs

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

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 AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804.exe
    "C:\Users\Admin\AppData\Local\Temp\577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Users\Admin\AppData\Local\Temp\577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804.exe
      "C:\Users\Admin\AppData\Local\Temp\577eafd6443de67e4e9ea1c3d8ee9845139cb15f204e10fc779f74e71f33b804.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/656-136-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/656-137-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/656-139-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3156-138-0x0000000000690000-0x00000000006A6000-memory.dmp

    Filesize

    88KB

  • memory/4772-134-0x0000000000760000-0x0000000000860000-memory.dmp

    Filesize

    1024KB

  • memory/4772-135-0x0000000000740000-0x0000000000749000-memory.dmp

    Filesize

    36KB