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Analysis

  • max time kernel
    91s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 01:50 UTC

General

  • Target

    50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe

  • Size

    168KB

  • MD5

    0cd9e8491588e9bf65d2f9c2c953cd50

  • SHA1

    14d311aa47ebbd3eb8c72b0b289d614b365c7141

  • SHA256

    50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905

  • SHA512

    afbe1907bd34bddb11aaeaa4d820243577d922cea2b168aa76d2b587d04a39e66ffe4e9e5968b91dce3cbf6a09ccdd9c99b7230c6583a3cd8d2d39ff65674455

  • SSDEEP

    3072:OTvj/t8bVdipDivEtGSK4KCIByHwntt+PNaA8tnc:OTrqJdyDHtGSK5yHa+F1gc

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
    "C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\SysWOW64\Explorer.exe
      Explorer /select,C:\ProgramData\Microsoft\Windows\Start Menu\Programs\XXX\calcx.lnk
      2⤵
        PID:1584
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:584

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\SogouPinyinUp.exe

      Filesize

      14KB

      MD5

      54e9f974ac4ef96572043259326b21fc

      SHA1

      da8deb9e6b39f00548dff9116ce426f1c1e45496

      SHA256

      100f3191193ff237ce9b30ba2c1985d72cad896dcacd1c9df324905893ef8227

      SHA512

      a71b8a526a410bcb0face2131af7d7b64f2bccdb184e72a623eaaa4a24f80f8b5a7a74041104e212fbbab51a18be71b79726ed6121cc8a04c55f396bd484fb5a

    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\XXX\calcx.lnk

      Filesize

      731B

      MD5

      d2396c97eb4b4b1b4e6d61cd0d5c1ca8

      SHA1

      b03ef58301b7daf4b4f89df082289336b6cd751f

      SHA256

      ce277fc1ce38e21e38d5f6ecc37cc6679d98910b7c105b57424804ac85a5834e

      SHA512

      03e0ccd6748afe620796e2560ec55e2163a96bae42d3012376e7d9cde78d935db922b4c9dd2e0e0bf42ace50569842902c7e50d7e0cae378acb9daf1b97da6da

    • \Program Files\SogouPinyinUp.exe

      Filesize

      14KB

      MD5

      54e9f974ac4ef96572043259326b21fc

      SHA1

      da8deb9e6b39f00548dff9116ce426f1c1e45496

      SHA256

      100f3191193ff237ce9b30ba2c1985d72cad896dcacd1c9df324905893ef8227

      SHA512

      a71b8a526a410bcb0face2131af7d7b64f2bccdb184e72a623eaaa4a24f80f8b5a7a74041104e212fbbab51a18be71b79726ed6121cc8a04c55f396bd484fb5a

    • memory/584-59-0x000007FEFB7F1000-0x000007FEFB7F3000-memory.dmp

      Filesize

      8KB

    • memory/584-60-0x00000000039C0000-0x00000000039D0000-memory.dmp

      Filesize

      64KB

    • memory/1584-58-0x0000000074161000-0x0000000074163000-memory.dmp

      Filesize

      8KB

    • memory/1708-54-0x0000000075111000-0x0000000075113000-memory.dmp

      Filesize

      8KB

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