Analysis

  • max time kernel
    133s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2024, 16:33

General

  • Target

    $R1/$_1_/Uninstall.exe

  • Size

    194KB

  • MD5

    f3660ce8a3ead23093bdd219d90d532e

  • SHA1

    0fe1665b698b07fa937f2df498334ab50bc6472d

  • SHA256

    289a35991eb5d8a80eeffdea5757ba5b2264891391d06bbcd80dda5ada058479

  • SHA512

    a5d8aa395915ef1ea472d53464ae013bfee3130c7c496c4aeb393d4b69854197610ccd9226a877f1a0c599a506da0b63443f6b6aa5e12e71d9b6169724b7eb05

  • SSDEEP

    3072:U5BuYAVrgUCPnaA44444444444444444444444NoPAZ4444444444444yZ6S6CZn:U50gUCCfPZ6SbOV1pZR4xjXiVM

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R1\$_1_\Uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\$R1\$_1_\Uninstall.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R1\$_1_\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:3268
  • 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 --field-trial-handle=4356,i,3724086843943218842,1026644135694712596,262144 --variations-seed-version --mojo-platform-channel-handle=3884 /prefetch:8
    1⤵
      PID:3368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nsyDAC1.tmp\System.dll

      Filesize

      11KB

      MD5

      bf712f32249029466fa86756f5546950

      SHA1

      75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

      SHA256

      7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

      SHA512

      13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

    • C:\Users\Admin\AppData\Local\Temp\nsyDAC1.tmp\UAC.dll

      Filesize

      13KB

      MD5

      a88baad3461d2e9928a15753b1d93fd7

      SHA1

      bb826e35264968bbc3b981d8430ac55df1e6d4a6

      SHA256

      c5ab2926c268257122d0342739e73573d7eeda34c861bc7a68a02cbc69bd41af

      SHA512

      5edcf46680716930da7fd1a41b8b0426f057cf4becefb3ee84798ec8b449726afb822fb626c4942036a1ae3bb937184d1f71d0e45075abb5bf167f5d833df43a

    • C:\Users\Admin\AppData\Local\Temp\nsyDAC1.tmp\apphelp.dll

      Filesize

      1.9MB

      MD5

      23f5cf8738981276020f276b7476d6dd

      SHA1

      9a02b3660863d75b411d47e17baf1716549fa956

      SHA256

      563ca40286b7eb0b8fe97b16acf47b4267ba18eed5ef133a75c6511045e9442b

      SHA512

      992a3aaa3209f0c8cb9dfb8e7714b3b809ad61f116c0b29b29897d242f8453fd71c815f9eeb67c3046a9984a2b41d81b85de1b39cc5c2d16b36b585bbd935245

    • C:\Users\Admin\AppData\Local\Temp\nsyDAC1.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      4ccc4a742d4423f2f0ed744fd9c81f63

      SHA1

      704f00a1acc327fd879cf75fc90d0b8f927c36bc

      SHA256

      416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

      SHA512

      790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

    • C:\Users\Admin\AppData\Local\Temp\nsyDAC1.tmp\registry.dll

      Filesize

      24KB

      MD5

      2b7007ed0262ca02ef69d8990815cbeb

      SHA1

      2eabe4f755213666dbbbde024a5235ddde02b47f

      SHA256

      0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d

      SHA512

      aa75ee59ca0b8530eb7298b74e5f334ae9d14129f603b285a3170b82103cfdcc175af8185317e6207142517769e69a24b34fcdf0f58ed50a4960cbe8c22a0aca

    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

      Filesize

      194KB

      MD5

      f3660ce8a3ead23093bdd219d90d532e

      SHA1

      0fe1665b698b07fa937f2df498334ab50bc6472d

      SHA256

      289a35991eb5d8a80eeffdea5757ba5b2264891391d06bbcd80dda5ada058479

      SHA512

      a5d8aa395915ef1ea472d53464ae013bfee3130c7c496c4aeb393d4b69854197610ccd9226a877f1a0c599a506da0b63443f6b6aa5e12e71d9b6169724b7eb05

    • memory/3268-15-0x0000000002FA0000-0x0000000002FF9000-memory.dmp

      Filesize

      356KB