Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-09-2023 23:58

General

  • Target

    8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f.exe

  • Size

    222KB

  • MD5

    be8469b30d87f96a475a3dc9ce890563

  • SHA1

    163a1de2cfff6ab6ddbbfc3d619e469574cf9dc8

  • SHA256

    8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f

  • SHA512

    5d1e2964d73cbc709ffdcab3086b87c837cf36bfad7640d4ebf675193ec21e305c6ce27ccf354f04fddfd7f31faff519de7cecec689762dc157f8b4c9f508ef0

  • SSDEEP

    3072:X3b4MqcL4WaNpC3uk9cQbsOcpe+nuXUfgFfrgz8X4AihvKPm05mWnWTs:b4pcLDaNk3ukaQbsOISzJ+YmTWnWT

Malware Config

Extracted

Family

smokeloader

Botnet

up3

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.

  • Executes dropped EXE 2 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 4 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 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\8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f.exe
    "C:\Users\Admin\AppData\Local\Temp\8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Users\Admin\AppData\Local\Temp\8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f.exe
      "C:\Users\Admin\AppData\Local\Temp\8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:736
  • C:\Users\Admin\AppData\Roaming\tfjueaj
    C:\Users\Admin\AppData\Roaming\tfjueaj
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Users\Admin\AppData\Roaming\tfjueaj
      C:\Users\Admin\AppData\Roaming\tfjueaj
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:4236

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    222KB

    MD5

    be8469b30d87f96a475a3dc9ce890563

    SHA1

    163a1de2cfff6ab6ddbbfc3d619e469574cf9dc8

    SHA256

    8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f

    SHA512

    5d1e2964d73cbc709ffdcab3086b87c837cf36bfad7640d4ebf675193ec21e305c6ce27ccf354f04fddfd7f31faff519de7cecec689762dc157f8b4c9f508ef0

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

    Filesize

    222KB

    MD5

    be8469b30d87f96a475a3dc9ce890563

    SHA1

    163a1de2cfff6ab6ddbbfc3d619e469574cf9dc8

    SHA256

    8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f

    SHA512

    5d1e2964d73cbc709ffdcab3086b87c837cf36bfad7640d4ebf675193ec21e305c6ce27ccf354f04fddfd7f31faff519de7cecec689762dc157f8b4c9f508ef0

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

    Filesize

    222KB

    MD5

    be8469b30d87f96a475a3dc9ce890563

    SHA1

    163a1de2cfff6ab6ddbbfc3d619e469574cf9dc8

    SHA256

    8adad0cfb96413c12af79d8a2309d5dcaacd92ddc5f038cad1bd5b32353aa13f

    SHA512

    5d1e2964d73cbc709ffdcab3086b87c837cf36bfad7640d4ebf675193ec21e305c6ce27ccf354f04fddfd7f31faff519de7cecec689762dc157f8b4c9f508ef0

  • memory/736-2-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/736-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/736-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3196-5-0x00000000006B0000-0x00000000006C6000-memory.dmp

    Filesize

    88KB

  • memory/3196-17-0x00000000028C0000-0x00000000028D6000-memory.dmp

    Filesize

    88KB

  • memory/4236-18-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4376-0-0x0000000000690000-0x00000000006A5000-memory.dmp

    Filesize

    84KB

  • memory/4376-1-0x00000000006B0000-0x00000000006B9000-memory.dmp

    Filesize

    36KB

  • memory/4376-3-0x0000000000690000-0x00000000006A5000-memory.dmp

    Filesize

    84KB