Analysis

  • max time kernel
    153s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    26-01-2022 17:27

General

  • Target

    db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab.exe

  • Size

    333KB

  • MD5

    20039ac6d81a0d0a6fc5343db2a7ba10

  • SHA1

    166a4fd4c83056a876aa25a6dd9b3cf87f5760a3

  • SHA256

    db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab

  • SHA512

    db8944a58f8630880ff65ce81404048e3bd40331c30a02478608ee9b6b09172824d2944bb69c298b09306fad8736726070732919ed62543212704af47af0fd24

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.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 2 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab.exe
    "C:\Users\Admin\AppData\Local\Temp\db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Users\Admin\AppData\Local\Temp\db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab.exe
      "C:\Users\Admin\AppData\Local\Temp\db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2728
  • C:\Users\Admin\AppData\Roaming\fjhvciu
    C:\Users\Admin\AppData\Roaming\fjhvciu
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Users\Admin\AppData\Roaming\fjhvciu
      C:\Users\Admin\AppData\Roaming\fjhvciu
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1288

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    20039ac6d81a0d0a6fc5343db2a7ba10

    SHA1

    166a4fd4c83056a876aa25a6dd9b3cf87f5760a3

    SHA256

    db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab

    SHA512

    db8944a58f8630880ff65ce81404048e3bd40331c30a02478608ee9b6b09172824d2944bb69c298b09306fad8736726070732919ed62543212704af47af0fd24

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

    MD5

    20039ac6d81a0d0a6fc5343db2a7ba10

    SHA1

    166a4fd4c83056a876aa25a6dd9b3cf87f5760a3

    SHA256

    db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab

    SHA512

    db8944a58f8630880ff65ce81404048e3bd40331c30a02478608ee9b6b09172824d2944bb69c298b09306fad8736726070732919ed62543212704af47af0fd24

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

    MD5

    20039ac6d81a0d0a6fc5343db2a7ba10

    SHA1

    166a4fd4c83056a876aa25a6dd9b3cf87f5760a3

    SHA256

    db12df1b8da6d3a11637bfdd99568a8cc16a099ab03f0c154709186fcb55ccab

    SHA512

    db8944a58f8630880ff65ce81404048e3bd40331c30a02478608ee9b6b09172824d2944bb69c298b09306fad8736726070732919ed62543212704af47af0fd24

  • memory/1288-125-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2464-115-0x00000000006D0000-0x00000000006F9000-memory.dmp

    Filesize

    164KB

  • memory/2728-116-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2728-117-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3028-118-0x00000000008A0000-0x00000000008B6000-memory.dmp

    Filesize

    88KB

  • memory/3028-126-0x0000000000900000-0x0000000000916000-memory.dmp

    Filesize

    88KB

  • memory/3644-121-0x00000000006E0000-0x0000000000709000-memory.dmp

    Filesize

    164KB

  • memory/3644-124-0x0000000000480000-0x00000000005CA000-memory.dmp

    Filesize

    1.3MB