Analysis

  • max time kernel
    140s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 06:34

General

  • Target

    fc95ab52b972ce0076904332e06c190407916bddd17d694e2fe64ea54cf4e16f.dll

  • Size

    605KB

  • MD5

    73a53666479c63c75801e6dfb52c8aea

  • SHA1

    374bd2984cd5c7360946fefb290d268bf2f9c5c1

  • SHA256

    fc95ab52b972ce0076904332e06c190407916bddd17d694e2fe64ea54cf4e16f

  • SHA512

    29a11f6be1caa99d6408e58564556e9257e8091b81b2bc16fafb5d63eca1795ba8431fb77fb8d8d91407ccbdb25c4a84cf49ed9c2fc5e89ed3eb15b8f2d5da54

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYm:o6RI1Fo/wT3cJYYYYYYYYYYYYm

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fc95ab52b972ce0076904332e06c190407916bddd17d694e2fe64ea54cf4e16f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fc95ab52b972ce0076904332e06c190407916bddd17d694e2fe64ea54cf4e16f.dll,#1
      2⤵
        PID:1856
    • 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=4064 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:572

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads