Overview

overview

10

Static

static

3

2024-03-31...uk.exe

windows7-x64

1

2024-03-31...uk.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 02:36

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General

  • Target

    2024-03-31_94459cb79e9b30c85e44f997a774301d_ryuk.exe

  • Size

    87KB

  • MD5

    94459cb79e9b30c85e44f997a774301d

  • SHA1

    861440a8db06879ca79b1b524c154945776ee915

  • SHA256

    bd1f7cc4501bc485b9c4a3380adae6beece8cbc3848ff78fd66c23b6d58fdc58

  • SHA512

    58d379a9e62548ad05cfe4398f9d025c7c63b0143f5ef3e1cc4381aa7e6ae5a9f711467b7cb2aa60805490545d0fb3440ccf7618e72821b4b6e358894e85108c

  • SSDEEP

    1536:98G7MwqqwS26x325YGHXqoaO1w6L7lgP2sW5dc9dlQxC6LuVhV/59:1owPwP605F3jaO1HJS8U6NuVhV

Score
10/10
cobaltstrikebackdoorpersistencetrojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://114.115.144.56:50051/qMk4

Attributes
  • user_agent

    User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; MANM)

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-31_94459cb79e9b30c85e44f997a774301d_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-31_94459cb79e9b30c85e44f997a774301d_ryuk.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    PID:4036
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3744 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4396

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Initial Access

    Execution

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Resource Development

    Reconnaissance

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4036-0-0x0000020B4D4B0000-0x0000020B4D4B1000-memory.dmp
      Filesize

      4KB

      Download