Analysis

  • max time kernel
    151s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2023, 01:20

General

  • Target

    5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe

  • Size

    351KB

  • MD5

    125bd43136a2cd9a67bc303038d67c13

  • SHA1

    92a33b34af7a7d012120275cc4ce265e47984e04

  • SHA256

    5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603

  • SHA512

    dc747b3773892c33d9c89f0a1968e1642483b7155b385edb77e92a149d96ffdb1bc9c2c2919c1bba2de75f3eedc21dfa9037198681f9cab34e3c6453c2499686

  • SSDEEP

    3072:ufapCAa/zybPg1w0yOBg+c11Nc3tdZDKTJDfbudGAg7lGsQOdHNqhiUPI4pMsJcP:PpIyjKw8Vc1e64MkzwNqAUN9XhWOTi

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Extracted

Family

smokeloader

Version

2022

C2

http://aapu.at/tmp/

http://poudineh.com/tmp/

http://firsttrusteedrx.ru/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Extracted

Family

rhadamanthys

C2

http://179.43.142.201/img/favicon.png

Signatures

  • Detect rhadamanthys stealer shellcode 3 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor 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 2 IoCs
  • Suspicious use of WriteProcessMemory 7 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.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe
    "C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1736
  • C:\Users\Admin\AppData\Local\Temp\16C4.exe
    C:\Users\Admin\AppData\Local\Temp\16C4.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4196
    • C:\Windows\system32\dllhost.exe
      "C:\Windows\system32\dllhost.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • outlook_office_path
      • outlook_win_path
      PID:1268
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 712
      2⤵
      • Program crash
      PID:1420
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4196 -ip 4196
    1⤵
      PID:3096

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\16C4.exe

            Filesize

            424KB

            MD5

            275a529eb263287899c1524c3f27db6a

            SHA1

            f767a1bf6f2175a040e9066b4dc1675f7f5c77e8

            SHA256

            31ee3c05d4163ff7d0682efca21c44fdbfb3c0a9dce58c665893b38ba9d16356

            SHA512

            e93f8594296915775e8789f7f297d57cc5e66f6f258f9c9aba134445b6def1461f990c7d6440c9bd3ceaeff1a26af39490c0aee6f50a850c24696ce6cc2ec154

          • C:\Users\Admin\AppData\Local\Temp\16C4.exe

            Filesize

            424KB

            MD5

            275a529eb263287899c1524c3f27db6a

            SHA1

            f767a1bf6f2175a040e9066b4dc1675f7f5c77e8

            SHA256

            31ee3c05d4163ff7d0682efca21c44fdbfb3c0a9dce58c665893b38ba9d16356

            SHA512

            e93f8594296915775e8789f7f297d57cc5e66f6f258f9c9aba134445b6def1461f990c7d6440c9bd3ceaeff1a26af39490c0aee6f50a850c24696ce6cc2ec154

          • memory/1268-165-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1268-157-0x0000024FD9D40000-0x0000024FD9D47000-memory.dmp

            Filesize

            28KB

          • memory/1268-164-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1268-163-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1268-162-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1268-159-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1268-155-0x0000024FD9A30000-0x0000024FD9A31000-memory.dmp

            Filesize

            4KB

          • memory/1268-158-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

            Filesize

            1000KB

          • memory/1736-136-0x0000000000400000-0x00000000007FD000-memory.dmp

            Filesize

            4.0MB

          • memory/1736-134-0x0000000000A90000-0x0000000000A99000-memory.dmp

            Filesize

            36KB

          • memory/3124-135-0x0000000001030000-0x0000000001046000-memory.dmp

            Filesize

            88KB

          • memory/4196-147-0x0000000000A60000-0x0000000000A8E000-memory.dmp

            Filesize

            184KB

          • memory/4196-156-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

            Filesize

            104KB

          • memory/4196-154-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

            Filesize

            112KB

          • memory/4196-161-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

            Filesize

            112KB

          • memory/4196-153-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

            Filesize

            104KB

          • memory/4196-152-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

            Filesize

            112KB

          • memory/4196-150-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB

          • memory/4196-148-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB