Analysis

  • max time kernel
    111s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 11:06

General

  • Target

    e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f.exe

  • Size

    924KB

  • MD5

    b5643f1fd8d6a5387642f9ee8abfe3a8

  • SHA1

    b651d4947ab83764bd96d8aab3bc2d291275c6b8

  • SHA256

    e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f

  • SHA512

    a066d104c84289f9bcf8dbecdeb8fb95b32b559b86d9011b402752d40743a56e25d1e0a2b104e7ba63d036f8a333e9ddad5c96b4ccf85416f0f4f05d33632d5f

  • SSDEEP

    12288:uytm2WSk/SSs/O0OOlkmJ5pIJYgEl2yjreZiOt+nW2wk/D3g:FtmdiEOlk26aVeZiOmW2pg

Score
10/10

Malware Config

Signatures

  • Detects Renamer worm. 6 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 1 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f.exe
    "C:\Users\Admin\AppData\Local\Temp\e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Users\Admin\AppData\Local\Temp\e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f.exe
      "C:\Users\Admin\AppData\Local\Temp\e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f.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:720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    924KB

    MD5

    b5643f1fd8d6a5387642f9ee8abfe3a8

    SHA1

    b651d4947ab83764bd96d8aab3bc2d291275c6b8

    SHA256

    e8c576904f68ccd15f5dcd940b967fa870d475c8f38202c100a294856b1ecf4f

    SHA512

    a066d104c84289f9bcf8dbecdeb8fb95b32b559b86d9011b402752d40743a56e25d1e0a2b104e7ba63d036f8a333e9ddad5c96b4ccf85416f0f4f05d33632d5f

  • C:\Program Files\7-Zip\RCXABB3.tmp

    Filesize

    924KB

    MD5

    897ef661839fb3696b98ddb362f2fd52

    SHA1

    252f2fa426dcb567b2c425511b52362e96ee3460

    SHA256

    32d7e744c2f5584bc4fb4af019e6d159f235c8f3627ce127a174e0f3c3ea565e

    SHA512

    6468c44829acc70104df801b9d0b524a55357a8fb4031352b160703f0f5af388f3809fbc8301aabf13b41a831694fe51a6874c22916a0bd919856228950a20bd

  • 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/720-5-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/720-9-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/720-8-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/720-7-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/720-4-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/720-271-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/2740-6-0x0000000000400000-0x00000000004EA000-memory.dmp

    Filesize

    936KB

  • memory/2740-0-0x0000000000400000-0x00000000004EA000-memory.dmp

    Filesize

    936KB

  • memory/2740-3-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB