General

  • Target

    70debce3a545cacca8b0bdb6008945852084b36e9160424fb63479c2991dcade_JC.exe

  • Size

    1.9MB

  • Sample

    231012-tcsdescc57

  • MD5

    534e8c1d3d71f8736793b80048c3dbdd

  • SHA1

    d651b9cf8a717609656f13183ac1c9128e5c9105

  • SHA256

    70debce3a545cacca8b0bdb6008945852084b36e9160424fb63479c2991dcade

  • SHA512

    3816f5c4bc1f0bb3466ec59257ab98914c3b0f3348942d01e8ab661cc071a89f2e4eb943ecd467f0710cb0fbf3a04e008a43d6a9277e725f97dec798abad2fc5

  • SSDEEP

    24576:eGgZShKmrSYSvcrWgzZTqZ8u+gJHE3nY0AdxPQaXm7sqUF0MU8GO0bb:ee+eWghqbEGdxPRWQqy0MU8GPb

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://servermlogs27.xyz/statweb255/

http://servmblog45.xyz/statweb255/

http://demblog575.xyz/statweb255/

http://admlogs85x.xyz/statweb255/

http://blogmstat389.xyz/statweb255/

http://blogmstat255.xyz/statweb255/

rc4.i32
rc4.i32

Targets

    • Target

      70debce3a545cacca8b0bdb6008945852084b36e9160424fb63479c2991dcade_JC.exe

    • Size

      1.9MB

    • MD5

      534e8c1d3d71f8736793b80048c3dbdd

    • SHA1

      d651b9cf8a717609656f13183ac1c9128e5c9105

    • SHA256

      70debce3a545cacca8b0bdb6008945852084b36e9160424fb63479c2991dcade

    • SHA512

      3816f5c4bc1f0bb3466ec59257ab98914c3b0f3348942d01e8ab661cc071a89f2e4eb943ecd467f0710cb0fbf3a04e008a43d6a9277e725f97dec798abad2fc5

    • SSDEEP

      24576:eGgZShKmrSYSvcrWgzZTqZ8u+gJHE3nY0AdxPQaXm7sqUF0MU8GO0bb:ee+eWghqbEGdxPRWQqy0MU8GPb

    • Ammyy Admin

      Remote admin tool with various capabilities.

    • AmmyyAdmin payload

    • Detect rhadamanthys stealer shellcode

    • FlawedAmmyy RAT

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

    • Rhadamanthys

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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks