Overview

overview

10

Static

static

7

a66a72c7ed...67.exe

windows7-x64

10

a66a72c7ed...67.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/02/2024, 13:01

Sharing

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General

  • Target
    a66a72c7eded1e2d5832234dc11f4867.exe
  • Size 3.7MB
  • Sample240226-p9fcxaee9t
  • SHA256 708d5be920872b67d827af551d50d984bba99f20adab031c4650e95321cecbee
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
cobaltstrikebackdoortrojanupx

Malware Config

Extracted

Family

  • cobaltstrike

C2

  • http://119.45.183.69:8989/Rpc

Attributes
  • user_agent

    Host: outlook.live.com Accept: */* User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Loads dropped DLL 3 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a66a72c7eded1e2d5832234dc11f4867.exe
    "C:\Users\Admin\AppData\Local\Temp\a66a72c7eded1e2d5832234dc11f4867.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Users\Admin\AppData\Local\Temp\a66a72c7eded1e2d5832234dc11f4867.exe
      "C:\Users\Admin\AppData\Local\Temp\a66a72c7eded1e2d5832234dc11f4867.exe"
      2⤵
      • Loads dropped DLL
      PID:3440

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        _ctypes.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI3762\_ctypes.pyd
        • Size 119KB
        • SHA256 7e18b2a1f52f9eddf059f704891d9a9603033a4a22e13a52d77632c845634f77
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        _hashlib.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI3762\_hashlib.pyd
        • Size 1.6MB
        • SHA256 82fcb7184e5afad99ca03ea5393acf057fd28e8d80716fdb5dffc2fc48ba394c
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ipv4_loader1.exe.manifest
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI3762\ipv4_loader1.exe.manifest
        • Size 1KB
        • SHA256 25970b255cabaf6fb4a75af8c73c4f0a90b98007e629ada1039a5a4833d001a5
        • MD5 SHA1 SHA512
        Submit Download

        python27.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI3762\python27.dll
        • Size 3.3MB
        • SHA256 4350a7b81cbc2c0556b24110037f2b012522f1220fe260febe31604de07baaa0
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/376-0-0x0000000000400000-0x0000000000446000-memory.dmp
        Download

        memory/376-22-0x0000000000400000-0x0000000000446000-memory.dmp
        Download

        memory/3440-12-0x0000000000400000-0x0000000000446000-memory.dmp
        Download

        memory/3440-20-0x00000000006D0000-0x00000000006D1000-memory.dmp
        Download

        memory/3440-23-0x0000000000400000-0x0000000000446000-memory.dmp
        Download