Overview

overview

7

Static

static

3

b9c098521e...2e.exe

windows7-x64

7

b9c098521e...2e.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 03:01

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General

  • Target

    b9c098521e030d2fbc3625e8f61633e40a3e9d6f714ba2a022cb4a73d6772d2e.exe

  • Size

    79KB

  • MD5

    61b858a3de6f49413c14d1f2082287e3

  • SHA1

    3bb7b3bdd1af1ef1b371f91c5bc16d82fb8c1f80

  • SHA256

    b9c098521e030d2fbc3625e8f61633e40a3e9d6f714ba2a022cb4a73d6772d2e

  • SHA512

    f6263357f97326f1c8930369da4f355377bd107994d5736727c7e593bed9d9ede593aa959a3349c29e90444f508ee40701cb748bb14f4203abd5c6d67a8e3273

  • SSDEEP

    1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOKB5ogV:GhfxHNIreQm+HixB5ogV

Score
7/10
persistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 5 IoCs
    persistence
  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies registry class 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9c098521e030d2fbc3625e8f61633e40a3e9d6f714ba2a022cb4a73d6772d2e.exe
    "C:\Users\Admin\AppData\Local\Temp\b9c098521e030d2fbc3625e8f61633e40a3e9d6f714ba2a022cb4a73d6772d2e.exe"
    1⤵
    • Modifies system executable filetype association
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\system\rundll32.exe
      C:\Windows\system\rundll32.exe
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:5060

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\notepad¢¬.exe
    Filesize

    77KB

    MD5

    32c5d8080b7a65548f44bc029b3cec69

    SHA1

    505b699de312f14619d8849e68586c02a78d8922

    SHA256

    e2c0ec44d774127bde8520876eeba93a4b5a97443a95db81c7b83941a13a5458

    SHA512

    53f377674a3cd775cc60b6d29e3c5471657075f8b1a5bcd6bb0f335118ce6b434b19a2cdc1af8a8dc1718acd14fb2a7e6127923c1a21a15adf44794b744a1514

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  • C:\Windows\System\rundll32.exe
    Filesize

    76KB

    MD5

    95966b15d6692c27b47df24fee5c6f14

    SHA1

    881525a72253a6b637502b5fafd40ce5a24f0d6f

    SHA256

    f84ef38a375d2907208ea97c1f1821ad47abb78bceabbf43fe2f1fd30cb2959f

    SHA512

    2e5a1d27912f6e9739e78ce4e43646a24baf6d23cf7517bd19917539ea067d7dbd340ca2ae7129521762cc5197092249a05b7b2376df755e9f2e2d93f54b68cb

    Download Submit
  • memory/4980-0-0x0000000000400000-0x0000000000415A00-memory.dmp
    Filesize

    86KB

    Download
  • memory/4980-13-0x0000000000400000-0x0000000000415A00-memory.dmp
    Filesize

    86KB

    Download