Analysis

  • max time kernel
    154s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 19:09

General

  • Target

    a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe

  • Size

    266KB

  • MD5

    9abf90bde094785cffbe3f34094b59e0

  • SHA1

    18e57ddb3d32d20f526cee6dd2c4731fea2f326b

  • SHA256

    a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1

  • SHA512

    ede2ad56ae8c63c261f4f51b72b98c257dfbccc384c9926ad6e348821d1316fe1ae1a7d85d5d1048b1b95ef845d523059a5c7f365cbb09634d283be492b7513a

  • SSDEEP

    3072:iBXiXrgPgrVGtBtNHPBidyXqJWmICEg43wZi6lw/khZjfHg:+ArnrEtB3vBioXqJ3TEg43k/wshZj

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://gudintas.at/tmp/

http://pik96.ru/tmp/

http://rosatiauto.com/tmp/

http://kingpirate.ru/tmp/

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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3020
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {73D9D5E4-F5EF-4047-834F-A85080719190} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Roaming\eugfcir
      C:\Users\Admin\AppData\Roaming\eugfcir
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3036

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          266KB

          MD5

          9abf90bde094785cffbe3f34094b59e0

          SHA1

          18e57ddb3d32d20f526cee6dd2c4731fea2f326b

          SHA256

          a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1

          SHA512

          ede2ad56ae8c63c261f4f51b72b98c257dfbccc384c9926ad6e348821d1316fe1ae1a7d85d5d1048b1b95ef845d523059a5c7f365cbb09634d283be492b7513a

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

          Filesize

          266KB

          MD5

          9abf90bde094785cffbe3f34094b59e0

          SHA1

          18e57ddb3d32d20f526cee6dd2c4731fea2f326b

          SHA256

          a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1

          SHA512

          ede2ad56ae8c63c261f4f51b72b98c257dfbccc384c9926ad6e348821d1316fe1ae1a7d85d5d1048b1b95ef845d523059a5c7f365cbb09634d283be492b7513a

        • memory/1220-4-0x00000000029D0000-0x00000000029E6000-memory.dmp

          Filesize

          88KB

        • memory/1220-16-0x0000000002A20000-0x0000000002A36000-memory.dmp

          Filesize

          88KB

        • memory/3020-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

          Filesize

          1024KB

        • memory/3020-2-0x0000000000400000-0x0000000000711000-memory.dmp

          Filesize

          3.1MB

        • memory/3020-3-0x0000000000220000-0x0000000000229000-memory.dmp

          Filesize

          36KB

        • memory/3020-5-0x0000000000400000-0x0000000000711000-memory.dmp

          Filesize

          3.1MB

        • memory/3036-14-0x00000000007B0000-0x00000000008B0000-memory.dmp

          Filesize

          1024KB

        • memory/3036-15-0x0000000000400000-0x0000000000711000-memory.dmp

          Filesize

          3.1MB

        • memory/3036-19-0x0000000000400000-0x0000000000711000-memory.dmp

          Filesize

          3.1MB