Overview

overview

7

Static

static

3

7z2401-x64.exe

windows11-21h2-x64

7

Analysis

  • max time kernel
    107s
  • max time network
    117s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-02-2024 16:58

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    7z2401-x64.exe

  • Size

    1.5MB

  • MD5

    de644b4e1086f1315c422f359133543b

  • SHA1

    54be86d121879b0e5d86604297c57a926d665fa8

  • SHA256

    17a507cce4066c4be7db53d64d9a9e11dfecfd4f2411393690506e591b5895cd

  • SHA512

    714d41254352d91834a4b648d613e9b4452b93b097b5781ec5bf3ec7c310a489d3a1c409b2f0a6946822b96f6943b579910d26a5f4324b320d485e856dbdcb1a

  • SSDEEP

    49152:8yEuRNRgYQYk6tC0tkaNuiXatTQY7quUncuTVyvn65:8yEoL7tCzlqLcuBz5

Score
7/10
discoverypersistence

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 21 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe"
    1⤵
    • Registers COM server for autorun
    • Drops file in Program Files directory
    • Modifies registry class
    PID:4044
  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\Desktop\ConvertFromOpen.rar"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4028
  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\Desktop\ConvertFromOpen.rar"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1888
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1256
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:408

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\7-Zip\7-zip.dll
      Filesize

      99KB

      MD5

      0bb139023eb3e17dedf9780a66e99a1a

      SHA1

      da841883ee156ffb2c1718e6aa20d30d4d578691

      SHA256

      0cdacb5eb70ca2b16ab333ee870983750103865fedb167c9d6068019b8197a4f

      SHA512

      ff9c15ac88bb233d9dd1dfb66a0dd9df5d87e7ae0ca282a6223fcd2ee69896056f330d9af6a4a7f913f9ed97b5bf77e8adfaa43270a7e39eaa91d039cb8f445d

      Download Submit

    • C:\Program Files\7-Zip\7z.dll
      Filesize

      1.8MB

      MD5

      325164288f23ccfff4891b050bf4a43e

      SHA1

      c6a2ded962d39a62da3878408fe0e3354938f81d

      SHA256

      1af1b530f6295207f719697184d4ab5587e2f11586da4564ce352a743e7b8ccb

      SHA512

      ce7765a689b15c85ee95394422a9a93d36ca803b89246edfdfcf86969b1227b52e99e7e029e5e52741f3bb41c0b8b7463e92e9f4ef7439a40e1cb70c79cade3c

      Download Submit

    • C:\Program Files\7-Zip\7zFM.exe
      Filesize

      929KB

      MD5

      6156ebaea891ddbfcb1187f628ec7577

      SHA1

      778fd5d5dec21f95c5aa554567e06da8295b9a47

      SHA256

      4853947e14bf30ab40702c34f80fb113c45619a73f89a938f2284c786e35c9fe

      SHA512

      ed166095ceb46ff77e1081263aea03cb97b5d244a7e4060b6b37c847fd496a7e577f297846414ff130e01484f44f9da2566e2572c6cd69e9b419c311799a511a

      Download Submit