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Overview

overview

7

Static

static

3

1bf0d42b5c...8d.exe

windows7-x64

7

1bf0d42b5c...8d.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/01/2024, 10:31

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General

  • Target

    1bf0d42b5c8bf68e4b77c88b80bc6e5b50e31f7acef1bcff10e44bb94c64908d.exe

  • Size

    195KB

  • MD5

    2b4e78f6449a4697ecdf29f0ec7b9292

  • SHA1

    e3e9930fbab9585ed2a3fd548bb35a3a03cf844c

  • SHA256

    1bf0d42b5c8bf68e4b77c88b80bc6e5b50e31f7acef1bcff10e44bb94c64908d

  • SHA512

    242b5098c39a7c6e783e28b68e92c8b88bebf76ffc5fa2b9eadadc1129e2edc3a923de1e52e96ef1c0094b9c5f5562568eb4f0cc4e45bbbd4136ca56086d0542

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOT:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXe

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1bf0d42b5c8bf68e4b77c88b80bc6e5b50e31f7acef1bcff10e44bb94c64908d.exe
    "C:\Users\Admin\AppData\Local\Temp\1bf0d42b5c8bf68e4b77c88b80bc6e5b50e31f7acef1bcff10e44bb94c64908d.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\1BF0D4~1.EXE > nul
      2⤵
        PID:3276
    • C:\Windows\Debug\egkhost.exe
      C:\Windows\Debug\egkhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:336

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Debug\egkhost.exe
      Filesize

      195KB

      MD5

      b2075a2b9864b5b06bcc346622042cd9

      SHA1

      f8ea6584a0b5a3a1c2d5a932eb76d6d02107b7db

      SHA256

      495e370c280cc7871c7a62e7f10b3daf1949500143b27765c1fc159d329c948e

      SHA512

      6917b01960757bdc5b138f7c87bff831384cee707adaba3fb3a0adaea0627021eb9b52ba46f0879cb7b0d44627d479a1e8fa731eaf7ab5441a729e8dfe8237ce

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