Analysis

  • max time kernel
    94s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/11/2024, 12:00

General

  • Target

    f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe

  • Size

    5.4MB

  • MD5

    271e4ef8ae4166157a4f38515d0e8a6e

  • SHA1

    7d1b42b5f10c2137187cbf7f0ee31e0578c7017a

  • SHA256

    f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75

  • SHA512

    07705cb3431c928c6f3a47a34071c94af43fcda61a94c181f1ff1ed3fefb779e52737b4b22784f53bb0068085e5e8ea0c1e4e1710825950f70773e572038207d

  • SSDEEP

    49152:9G6tYEeN0LUmRXtYs65m1cyO82MzufjWJA6ongaHLvKLA8VgbKW2llxobcJOu2Qq:U6tYuUeY15645gaHrhdwW

Malware Config

Signatures

  • Renames multiple (316) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe
    "C:\Users\Admin\AppData\Local\Temp\f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Windows\SysWOW64\sysx32.exe
      C:\Windows\system32\sysx32.exe /scan
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:2876
    • C:\Users\Admin\AppData\Local\Temp\_f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe
      C:\Users\Admin\AppData\Local\Temp\_f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe
      2⤵
      • Executes dropped EXE
      PID:3212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    5.4MB

    MD5

    34f859e765e80e7559c99ff7e78a5938

    SHA1

    7409415e3261090e0f5f268739dd325bad76ef71

    SHA256

    a29d4568f0dc3e73dc3afa039bae7c6614f58d5c17ad2caa77ec75dcbc4a27d1

    SHA512

    cbc3a5ceaf1cf802c6b434bba6e5efcd0e718e640b027c27605c60c9f5befd8874a6bcf00615be9176db2517e18960c0957fefd4ff1cd0292e2b6f327858a78f

  • C:\Users\Admin\AppData\Local\Temp\_f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75.exe

    Filesize

    5.3MB

    MD5

    7416388cde9f08f622ec11be7be02126

    SHA1

    ccbb59c45811ef1e3e9301e4beee05aec9fc20ad

    SHA256

    736a74e0b85a68e90465df2ac8372a117b555e00900c73d0f1a04ef61b901c7e

    SHA512

    9366f2a87b79fe92f58b9718b84ce1b6258dc1546ca4057be5cc27604fc0580437edb2781e2acef49a7c0b1469debafeb12706873e89fbc925a1c2545f637c23

  • C:\Windows\SysWOW64\sysx32.exe

    Filesize

    5.4MB

    MD5

    271e4ef8ae4166157a4f38515d0e8a6e

    SHA1

    7d1b42b5f10c2137187cbf7f0ee31e0578c7017a

    SHA256

    f700fb842b5dc74b3bdd31a01c1d924634e073091f2d67e718f0a63ff44ccf75

    SHA512

    07705cb3431c928c6f3a47a34071c94af43fcda61a94c181f1ff1ed3fefb779e52737b4b22784f53bb0068085e5e8ea0c1e4e1710825950f70773e572038207d

  • memory/2372-0-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2372-68-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-987-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-986-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-2687-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-2688-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-2689-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2876-2690-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB