Resubmissions

27-12-2024 12:08

241227-pa23mavmdz 10

03-12-2024 13:59

241203-radfdatnbr 3

Analysis

  • max time kernel
    146s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2024 12:08

General

  • Target

    Payment Info______________pdf.exe

  • Size

    1.5MB

  • MD5

    a69247a5bf856961397a936413521d4c

  • SHA1

    5b22d99e1fdd6a52b2541cc497d12055fccc6900

  • SHA256

    de93de0c39f0a6c10707a3560ad8e98d4c7513d4451031d05183002b50ae25e4

  • SHA512

    2686d6178bd10e510dd05b6ccc008383ec021cd2cee632c56b1a7e47beb267e3655a64e6ccc00331dbebee6a209ff64d0a4f7fff16bd8addcd69530b4e5d6896

  • SSDEEP

    24576:9cCT67wHqWis4l+jIACFr5hqjiLDpSJDN93pqb6W8cU4gLQz5A:uCpn8t74iA3qb6W8cU45i

Score
10/10

Malware Config

Signatures

  • Detects Renamer worm. 4 IoCs

    Renamer aka Grename is worm written in Delphi.

  • Renamer family
  • Renamer, Grenam

    Renamer aka Grenam is a worm written in Delphi.

  • Drops startup file 2 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

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

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

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Info______________pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Info______________pdf.exe"
    1⤵
    • Drops startup file
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4616
    • C:\Users\Admin\AppData\Local\Temp\Payment Info______________pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Info______________pdf.exe"
      2⤵
      • Drops startup file
      • Drops autorun.inf file
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:1960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    1.5MB

    MD5

    a69247a5bf856961397a936413521d4c

    SHA1

    5b22d99e1fdd6a52b2541cc497d12055fccc6900

    SHA256

    de93de0c39f0a6c10707a3560ad8e98d4c7513d4451031d05183002b50ae25e4

    SHA512

    2686d6178bd10e510dd05b6ccc008383ec021cd2cee632c56b1a7e47beb267e3655a64e6ccc00331dbebee6a209ff64d0a4f7fff16bd8addcd69530b4e5d6896

  • C:\Program Files\Java\jdk-1.8\bin\vjavaws.ico

    Filesize

    4KB

    MD5

    38b41d03e9dfcbbd08210c5f0b50ba71

    SHA1

    2fbfde75ce9fe8423d8e7720bf7408cedcb57a70

    SHA256

    611f2cb2e03bd8dbcb584cd0a1c48accfba072dd3fc4e6d3144e2062553637f5

    SHA512

    ec97556b6ff6023d9e6302ba586ef27b1b54fbf7e8ac04ff318aa4694f13ad343049210ef17b7b603963984c1340589665d67d9c65fec0f91053ff43b1401ba9

  • C:\Program Files\Microsoft Office 15\ClientX64\vIntegratedOffice.ico

    Filesize

    4KB

    MD5

    3ea9bcbc01e1a652de5a6fc291a66d1a

    SHA1

    aee490d53ee201879dff37503a0796c77642a792

    SHA256

    a058bfd185fe714927e15642004866449bce425d34292a08af56d66cf03ebe6c

    SHA512

    7c740132f026341770b6a20575786da581d8a31850d0d680978a00cc4dfca1e848ef9cdc32e51bae680ea13f6cc0d7324c38765cb4e26dcb2e423aced7da0501

  • C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\vmisc.ico

    Filesize

    4KB

    MD5

    fc27f73816c9f640d800cdc1c9294751

    SHA1

    e6c3d8835d1de4e9606e5588e741cd1be27398f6

    SHA256

    3cc5043caa157e5f9b1870527b8c323850bdae1e58d6760e4e895d2ab8a35a05

    SHA512

    9e36b96acc97bc7cd45e67a47f1ae7ab7d3818cc2fdaad147524ce9e4baedfaac9cd012923ec65db763bfd850c65b497376bb0694508bee59747f97bf1591fd4

  • F:\autorun.inf

    Filesize

    102B

    MD5

    5513829683bff23161ca7d8595c25c72

    SHA1

    9961b65bbd3bac109dddd3a161fc30650e8a7096

    SHA256

    94e323bd9071db7369ade16f45454e7a0dbfb6a39efddc1234c4719d1f7ee4c2

    SHA512

    308c84446106cda0a71e37b0de46aaf4b7361f9ddcc3c4c29f8e87da8acb606525dce8a42caf9d74e708c56b31c524f9535a2f5f4757c6c357401da1c495ddb6

  • memory/1960-5-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/1960-7-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/1960-8-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/1960-266-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/4616-2-0x00000000023E0000-0x00000000023F5000-memory.dmp

    Filesize

    84KB

  • memory/4616-6-0x00000000023E0000-0x00000000023F5000-memory.dmp

    Filesize

    84KB