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Analysis

  • max time kernel
    15s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    21/09/2024, 14:17

General

  • Target

    c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe

  • Size

    4.8MB

  • MD5

    72edb6848339f6b26d27f32104c5ed21

  • SHA1

    b416c0a4e3cb3c8fb8be6e46b11755d762d32ee7

  • SHA256

    c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210

  • SHA512

    a151118a347c80d0f6744fb9cc8a5d29b214f74a2ada0560350d36f3f9a2feb350048cf7f809b94aabd44bd5fc2559c5c7408248f59f8ad9a0ce1dd7bdee7aa7

  • SSDEEP

    98304:nXHfZysNkdeOVWB4PGrx2fEyMmzHJhYlRJL:nPx1dx2f9MmzHwP

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe
    "C:\Users\Admin\AppData\Local\Temp\c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 720
      2⤵
      • Program crash
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\{9990737A-3392-4485-8D79-7219F02958AB}.tmp\NetBridge.dll

    Filesize

    231KB

    MD5

    9d145902fb5b9a6da62ac85761434e31

    SHA1

    c817d77f59e3767d75cf5f5298d6b5711308f7e5

    SHA256

    98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

    SHA512

    bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

  • \Users\Admin\AppData\Local\Temp\{1F0AD249-DC85-4e09-88AC-BE3C54BCDFC8}.tmp\7z.dll

    Filesize

    1.1MB

    MD5

    2706693dda10c6cc79eed24c56d4e5ef

    SHA1

    4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

    SHA256

    0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

    SHA512

    7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

  • memory/1856-27-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB