Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-03-2024 13:47

General

  • Target

    bb6a3d996b7d0044a8a02664a6819077.exe

  • Size

    251KB

  • MD5

    bb6a3d996b7d0044a8a02664a6819077

  • SHA1

    70e521ef1edf85e7a39e2e84d7c4e0543ade49d4

  • SHA256

    0cb3b217638e2dfb78fee55c413f25adf555ff110e6490117f2512e19cf6dbe0

  • SHA512

    752f8c0e5330f96622a709caf637663d99469ce6eb1db3f7fd768f75a6b86ed322ad5f24dac4cb74a49751e2cb724cf09cb9560ebb43bd9778832bb383701ba9

  • SSDEEP

    3072:wBBSpb1Y4kEm73cTvRKO/L1jEfmS1WSzBHj8dZPOwNVXjzoZ8V:2QpRY407a8aLKuaW/ZrNVfs8V

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\bb6a3d996b7d0044a8a02664a6819077.exe
    "C:\Users\Admin\AppData\Local\Temp\bb6a3d996b7d0044a8a02664a6819077.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2296 -s 392
      2⤵
      • Program crash
      PID:1976
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2296 -ip 2296
    1⤵
      PID:2140
    • C:\Users\Admin\AppData\Roaming\ebbrjgd
      C:\Users\Admin\AppData\Roaming\ebbrjgd
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      PID:4488

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CC4F.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

      Filesize

      251KB

      MD5

      bb6a3d996b7d0044a8a02664a6819077

      SHA1

      70e521ef1edf85e7a39e2e84d7c4e0543ade49d4

      SHA256

      0cb3b217638e2dfb78fee55c413f25adf555ff110e6490117f2512e19cf6dbe0

      SHA512

      752f8c0e5330f96622a709caf637663d99469ce6eb1db3f7fd768f75a6b86ed322ad5f24dac4cb74a49751e2cb724cf09cb9560ebb43bd9778832bb383701ba9

    • memory/2296-1-0x00000000015C0000-0x00000000016C0000-memory.dmp

      Filesize

      1024KB

    • memory/2296-2-0x0000000003160000-0x0000000003169000-memory.dmp

      Filesize

      36KB

    • memory/2296-7-0x0000000000400000-0x0000000001411000-memory.dmp

      Filesize

      16.1MB

    • memory/2296-11-0x0000000000400000-0x0000000001411000-memory.dmp

      Filesize

      16.1MB

    • memory/3360-8-0x0000000002C90000-0x0000000002CA5000-memory.dmp

      Filesize

      84KB

    • memory/4488-23-0x00000000014B0000-0x00000000015B0000-memory.dmp

      Filesize

      1024KB

    • memory/4488-24-0x0000000000400000-0x0000000001411000-memory.dmp

      Filesize

      16.1MB