Analysis

  • max time kernel
    300s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    23-02-2024 04:47

General

  • Target

    04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe

  • Size

    136KB

  • MD5

    d7396862e257bd1cd7e8741eb543f147

  • SHA1

    73a69269e5fdd90df5e1a470d8bb032ea562ad7a

  • SHA256

    04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840

  • SHA512

    44b5a79bebc0e972baa76d408c5107b8eeafba6d722968f74367b12e3290c645e4c6746c8ab4b2362cef03516760b393e5f9477cb5152034f4c85614c1c2b435

  • SSDEEP

    3072:lvv3PzGScDkVG8R7eK/ix5cC04p/P79KhIF/f9W:V3yScQVXR7ejcCZ/Pfp

Malware Config

Extracted

Family

smokeloader

Botnet

pub3

Extracted

Family

smokeloader

Version

2022

C2

http://sjyey.com/tmp/index.php

http://babonwo.ru/tmp/index.php

http://mth.com.ua/tmp/index.php

http://piratia.pw/tmp/index.php

http://go-piratia.ru/tmp/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe
    "C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2924
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {67514099-05AB-4FE3-88F8-7146F0446CD9} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Roaming\atvwhwe
      C:\Users\Admin\AppData\Roaming\atvwhwe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    136KB

    MD5

    d7396862e257bd1cd7e8741eb543f147

    SHA1

    73a69269e5fdd90df5e1a470d8bb032ea562ad7a

    SHA256

    04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840

    SHA512

    44b5a79bebc0e972baa76d408c5107b8eeafba6d722968f74367b12e3290c645e4c6746c8ab4b2362cef03516760b393e5f9477cb5152034f4c85614c1c2b435

  • memory/1064-4-0x0000000002AD0000-0x0000000002AE6000-memory.dmp

    Filesize

    88KB

  • memory/1064-16-0x0000000002970000-0x0000000002986000-memory.dmp

    Filesize

    88KB

  • memory/2440-14-0x0000000002410000-0x0000000002510000-memory.dmp

    Filesize

    1024KB

  • memory/2440-15-0x0000000000400000-0x00000000022CA000-memory.dmp

    Filesize

    30.8MB

  • memory/2440-17-0x0000000000400000-0x00000000022CA000-memory.dmp

    Filesize

    30.8MB

  • memory/2924-1-0x0000000000230000-0x0000000000330000-memory.dmp

    Filesize

    1024KB

  • memory/2924-2-0x0000000000400000-0x00000000022CA000-memory.dmp

    Filesize

    30.8MB

  • memory/2924-3-0x00000000003A0000-0x00000000003AB000-memory.dmp

    Filesize

    44KB

  • memory/2924-5-0x0000000000400000-0x00000000022CA000-memory.dmp

    Filesize

    30.8MB