Analysis

  • max time kernel
    150s
  • max time network
    127s
  • 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, 03:27

General

  • Target

    SecuriteInfo.com.Variant.Zusy.457078.5822.1990.exe

  • Size

    350KB

  • MD5

    448f489ab8ce71cb24c4ed44e2a151cf

  • SHA1

    44ce7712652ddc9e21d2c9965ee4e6a53a05b1ce

  • SHA256

    306839eeb37080b5d6e7d32ab0b261995877e9d143e91d1d1e06cdf636bcea28

  • SHA512

    f93f88bcb35cb729224f810a1443415336971a9fa0f705500d44301ff4cdbba03bfdfc10732f5caf09fb97eb82ba6717c975ab7b4b28a125f0b5a0e40739f524

  • SSDEEP

    6144:hL8RcVR3Bk+HT7H8wOcZHnoUvQGU9Dxi:hLzVFu+z7H3OcxnTU9Y

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 4 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\SecuriteInfo.com.Variant.Zusy.457078.5822.1990.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Zusy.457078.5822.1990.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1456
  • C:\Users\Admin\AppData\Local\Temp\2EEF.exe
    C:\Users\Admin\AppData\Local\Temp\2EEF.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2536
    • 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:4696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 696
      2⤵
      • Program crash
      PID:724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2536 -ip 2536
    1⤵
      PID:2236

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\2EEF.exe

            Filesize

            423KB

            MD5

            125d1cf1adccdd7c0e0058f02d7dcfc4

            SHA1

            31ae25eb8cc617c94335773eb0261614554d9e19

            SHA256

            a499e4d7f71cb83c442b02f45dc986a42c6fef18ffc0efb9a54287671e063cc2

            SHA512

            e9e0b496e8ae722c58952dae5dc3f0942b1b87f2792741c05106792ae9249a44b6689560cf1e8cb87bb32ac26a375aa6f249643c0093e4d205ddd733da02d601

          • C:\Users\Admin\AppData\Local\Temp\2EEF.exe

            Filesize

            423KB

            MD5

            125d1cf1adccdd7c0e0058f02d7dcfc4

            SHA1

            31ae25eb8cc617c94335773eb0261614554d9e19

            SHA256

            a499e4d7f71cb83c442b02f45dc986a42c6fef18ffc0efb9a54287671e063cc2

            SHA512

            e9e0b496e8ae722c58952dae5dc3f0942b1b87f2792741c05106792ae9249a44b6689560cf1e8cb87bb32ac26a375aa6f249643c0093e4d205ddd733da02d601

          • memory/1456-134-0x0000000000950000-0x0000000000959000-memory.dmp

            Filesize

            36KB

          • memory/1456-136-0x0000000000400000-0x00000000007FC000-memory.dmp

            Filesize

            4.0MB

          • memory/2536-154-0x0000000000990000-0x00000000009AC000-memory.dmp

            Filesize

            112KB

          • memory/2536-162-0x0000000000990000-0x00000000009AC000-memory.dmp

            Filesize

            112KB

          • memory/2536-148-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB

          • memory/2536-151-0x0000000000990000-0x00000000009AC000-memory.dmp

            Filesize

            112KB

          • memory/2536-152-0x0000000000990000-0x00000000009AC000-memory.dmp

            Filesize

            112KB

          • memory/2536-153-0x00000000009B0000-0x00000000009CA000-memory.dmp

            Filesize

            104KB

          • memory/2536-160-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB

          • memory/2536-147-0x0000000000960000-0x000000000098E000-memory.dmp

            Filesize

            184KB

          • memory/2536-156-0x00000000009B0000-0x00000000009CA000-memory.dmp

            Filesize

            104KB

          • memory/3128-135-0x0000000000430000-0x0000000000446000-memory.dmp

            Filesize

            88KB

          • memory/4696-157-0x0000013EEF020000-0x0000013EEF027000-memory.dmp

            Filesize

            28KB

          • memory/4696-158-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB

          • memory/4696-159-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB

          • memory/4696-161-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB

          • memory/4696-155-0x0000013EEED10000-0x0000013EEED11000-memory.dmp

            Filesize

            4KB

          • memory/4696-163-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB

          • memory/4696-164-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB

          • memory/4696-165-0x00007FF486CA0000-0x00007FF486D9A000-memory.dmp

            Filesize

            1000KB