Overview

overview

10

Static

static

10

CelSu16.exe

windows11-21h2-x64

10

TenioDL_core.dll

windows11-21h2-x64

3

msvcp_win.dll

windows11-21h2-x64

3

ucrtbase.dll

windows11-21h2-x64

3

Sharing

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General

  • Target
    m7f3s7CfkPLmRZfy.zip
  • Size 2.4MB
  • Sample260919-tk599adn2w
  • SHA256 4aca31a1b1aad01dd065330ffb82b43f1e33c951d280849d4ca136a6b4c14169
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
hijackloadersectopratdiscoveryloaderratrevoked_codesigntrojan

Malware Config

Extracted

Family

  • hijackloader

Attributes
  • directory

    %APPDATA%\int_oracle_terminal

  • inject_dll

    %windir%\SysWOW64\input.dll

xor.hex

Targets

    • Target
      CelSu16.exe
    • Size 188KB
    • SHA256 fcbed331413cf92f2944d284bc52e96c08945de239bc92bcb6d2b14f4846128a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryhijackloadersectopratloaderrattrojan

    • Detects HijackLoader (aka IDAT Loader)

    • Family: HijackLoader, IDAT loader, Ghostulse,

      HijackLoader is a multi-stage loader, first seen in 2023.

      loaderhijackloader

    • Family: SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

      trojanratsectoprat

    • SectopRAT payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral1
    • Target
      TenioDL_core.dll
    • Size 544KB
    • SHA256 3ba5a64627b60af7d7c25347bab71125f19a15588f615a15b7dd48d42c0b9f2f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral2
    • Target
      msvcp_win.dll
    • Size 485KB
    • SHA256 55043a5dbe9b4bfe50e2e6be0bdf77a69a075becc520700dcaffb1d9f7686138
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral3
    • Target
      ucrtbase.dll
    • Size 1.1MB
    • SHA256 71358d729b01bdf38dbe5440705ea68ea9225f93c834f45c5687b0ea2b417c4e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral4

MITRE ATT&CK Enterprise v16

Tasks