Analysis

  • max time kernel
    144s
  • 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
    26/05/2024, 01:40

General

  • Target

    2024-05-26_9b1758db8cd77822d9cd78b43555cb96_ryuk.exe

  • Size

    6.5MB

  • MD5

    9b1758db8cd77822d9cd78b43555cb96

  • SHA1

    12374ca81eb6b58af4395db7d101037d22f5109a

  • SHA256

    497a155dbf54f559a7a4d4a9d6c2b40a6f704e6018e6de7d73155e48228e2d54

  • SHA512

    5a5f4fd9ba79d03089098868c22241923480d0ea054d3f243d1219d5a2fd203e28fee215ad5d25a9ed8268830cf0ce13151ce0a24fc4fd7813c3e8e7087ce709

  • SSDEEP

    196608:0c+9x40LcFBLdmITbi3prZf6Z1ESEp1LiOPh9t8NCivq:A9x4F5dze3TSZvOViOJQs2

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-26_9b1758db8cd77822d9cd78b43555cb96_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-26_9b1758db8cd77822d9cd78b43555cb96_ryuk.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4436
    • C:\Users\Admin\AppData\Local\Temp\2024-05-26_9b1758db8cd77822d9cd78b43555cb96_ryuk.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-05-26_9b1758db8cd77822d9cd78b43555cb96_ryuk.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:4428
  • 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=4116 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2152

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\VCRUNTIME140.dll

            Filesize

            85KB

            MD5

            6e2b2ddb1bc783122018d99d38497298

            SHA1

            414dfc02289926416399fd986a303e32e812c595

            SHA256

            02fcb91909ed2ecc68b62bceaca7b8d8319e7d625e599756c170db631237da69

            SHA512

            3d2a9b62f4ad87b69a582cd97d3d7a1ae20a99561b65a8c20fbea8b83c1515541bde4d9f3f8b88c03f5fe4f956bc4533b5171e29fde89cc0265c99384eac2358

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\_ctypes.pyd

            Filesize

            123KB

            MD5

            8487b3c4cad03068e4968a61dbf6604f

            SHA1

            c3ac3241b9e2e02c5686a7b0535b91f741b76a04

            SHA256

            0a35d727361d2a8e70047e1c07b70ed4f6ceca84d22fa6b18a21f3069393c6a9

            SHA512

            711a2760611ff2c00f1f22fe9fad19001bace86fec2331bb1cb6f09df14ba84afeae43b3febf0c6d9e1fd14e71f7d0c109ddbe9ec5ea6627a7d6ea0a15634e04

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\base_library.zip

            Filesize

            762KB

            MD5

            5da23bb7eb3bfd69f1363f1771818d1a

            SHA1

            d90c086ea708cb8cd60136bee155b66d293c6d7f

            SHA256

            b46a9ccecd432f966a97420db35082ab9de7c500772eec12e64808cb439791e7

            SHA512

            c2aea1685924e449b7da4936f2859808b6e6d8458e467dd61d4dc308a6de683724f43001b57e9e7c13ed57aedd54e336ab27e6938659b42aba56282b5ca86fa8

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\kod.exe.manifest

            Filesize

            1KB

            MD5

            867be43ab8c97b14e9cc6776d90b536d

            SHA1

            1c66307363cfb8f82d8c4d6bb807715604c46614

            SHA256

            d18fd23e37ede3e91615ee427dc5a2084b7fdcc8ba30642e007504a2839a1f54

            SHA512

            dbba38b114c1ca12c52817f5abb874bf7ce3f8bc882671530a909ba739b2142fc2b6c30998c3cd87242e09ec83971e38070f7f03670e1224e6642d25113b25dd

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\python37.dll

            Filesize

            3.6MB

            MD5

            e85fb65cf7b889457197b26a4bed1c48

            SHA1

            e37b89e30b72116a81d3d48a7148470a5920d834

            SHA256

            24127d345af8bbaca0c217e4971e5772018df1079442bea41ac2b04aab5438a9

            SHA512

            558fb31f9a8ccb47cdef455f2c62f3da12d371ef8843420ee409d42d96e634fc34c650379ce3870eed9c48bedcc2a6c907b89bdc5c52760bc19fd76ebae506e3

          • C:\Users\Admin\AppData\Local\Temp\_MEI44362\ucrtbase.dll

            Filesize

            992KB

            MD5

            0e0bac3d1dcc1833eae4e3e4cf83c4ef

            SHA1

            4189f4459c54e69c6d3155a82524bda7549a75a6

            SHA256

            8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

            SHA512

            a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd