Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 6 IoCs
  • Program crash 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: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 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:2856
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {64AB7158-3ABF-47DE-A52D-FAB96E8BD9B6} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1880
    • C:\Users\Admin\AppData\Roaming\ugebdcu
      C:\Users\Admin\AppData\Roaming\ugebdcu
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 124
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    251KB

    MD5

    bb6a3d996b7d0044a8a02664a6819077

    SHA1

    70e521ef1edf85e7a39e2e84d7c4e0543ade49d4

    SHA256

    0cb3b217638e2dfb78fee55c413f25adf555ff110e6490117f2512e19cf6dbe0

    SHA512

    752f8c0e5330f96622a709caf637663d99469ce6eb1db3f7fd768f75a6b86ed322ad5f24dac4cb74a49751e2cb724cf09cb9560ebb43bd9778832bb383701ba9

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

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • memory/1176-7-0x0000000002A60000-0x0000000002A75000-memory.dmp

    Filesize

    84KB

  • memory/2412-18-0x0000000001540000-0x0000000001640000-memory.dmp

    Filesize

    1024KB

  • memory/2412-19-0x0000000000400000-0x0000000001411000-memory.dmp

    Filesize

    16.1MB

  • memory/2856-3-0x00000000001B0000-0x00000000001B9000-memory.dmp

    Filesize

    36KB

  • memory/2856-2-0x0000000000270000-0x0000000000370000-memory.dmp

    Filesize

    1024KB

  • memory/2856-6-0x0000000000400000-0x0000000001411000-memory.dmp

    Filesize

    16.1MB

  • memory/2856-8-0x0000000000400000-0x0000000001411000-memory.dmp

    Filesize

    16.1MB