General

  • Target

    6Js1.bin

  • Size

    618KB

  • Sample

    230907-j8b17sff65

  • MD5

    3f6d5376b6d40c82644287c7621dfc5b

  • SHA1

    f54b9ed42b60eb6793cd55ed25e6f2bd6120218f

  • SHA256

    94dbf6089ceccafd34ec1011941f18682361d71a9fbc54d1495dc0f9ec52169e

  • SHA512

    3ea3e7c045c015e8c455ed9f550784d7af75c2cba263913ffaa210652f74ed036a6541b71f95d11663ee6dd062059cbcad94c1148243852d01722dd8780d010c

  • SSDEEP

    12288:vbNq3U22k24PnuBvJTvfIVcmaBhIaQBanLFHL4UhnPtJHKFm5fto1XGTI:zI24PuvJTEYHLzhnPwU1cL

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://serverxlogs21.xyz/statweb255/

http://servxblog79.xyz/statweb255/

http://demblog289.xyz/statweb255/

http://admlogs77x.online/statweb255/

http://blogxstat38.xyz/statweb255/

http://blogxstat25.xyz/statweb255/

rc4.i32
rc4.i32

Targets

    • Target

      6Js1.bin

    • Size

      618KB

    • MD5

      3f6d5376b6d40c82644287c7621dfc5b

    • SHA1

      f54b9ed42b60eb6793cd55ed25e6f2bd6120218f

    • SHA256

      94dbf6089ceccafd34ec1011941f18682361d71a9fbc54d1495dc0f9ec52169e

    • SHA512

      3ea3e7c045c015e8c455ed9f550784d7af75c2cba263913ffaa210652f74ed036a6541b71f95d11663ee6dd062059cbcad94c1148243852d01722dd8780d010c

    • SSDEEP

      12288:vbNq3U22k24PnuBvJTvfIVcmaBhIaQBanLFHL4UhnPtJHKFm5fto1XGTI:zI24PuvJTEYHLzhnPwU1cL

    • Ammyy Admin

      Remote admin tool with various capabilities.

    • AmmyyAdmin payload

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

    • Modifies security service

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Stops running service(s)

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses Microsoft Outlook profiles

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks