Analysis

  • max time kernel
    93s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 08:58

General

  • Target

    12ae1adc5aaf9d26a1c860063da6ca70_JaffaCakes118.exe

  • Size

    1.2MB

  • MD5

    12ae1adc5aaf9d26a1c860063da6ca70

  • SHA1

    254f2b83e4c78a97fc649eea1c722974a71d5d73

  • SHA256

    228f832b9b3c678d89589498771dd45cdd16ef3f1a2517c5fa08fa5a2aa3f083

  • SHA512

    99816bf15062e71494a46f9aaa1ad15c21e232a3b3a1d91691c4778984d97799d2ea2bf00a56808d800fc3db268f3f9f10dae05ab3d4e0786ee60283e98716b0

  • SSDEEP

    24576:IMc1bS0R6crXjYp36O1aNjoWBFJDq9SpCxfzs2o2SV/deDrgO:IMcxS0RTrzYp3/oNEWxq8pCRzro2SV/u

Score
10/10

Malware Config

Signatures

  • Detects Renamer worm. 5 IoCs

    Renamer aka Grename is worm written in Delphi.

  • Renamer, Grenam

    Renamer aka Grenam is a worm written in Delphi.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\12ae1adc5aaf9d26a1c860063da6ca70_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\12ae1adc5aaf9d26a1c860063da6ca70_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IKoWZvhVjiC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7441.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1244
    • C:\Users\Admin\AppData\Local\Temp\12ae1adc5aaf9d26a1c860063da6ca70_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\12ae1adc5aaf9d26a1c860063da6ca70_JaffaCakes118.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:2112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • 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

  • C:\Users\Admin\AppData\Local\Temp\tmp7441.tmp

    Filesize

    1KB

    MD5

    6f7e6b2bf94c95b57b43be8b1bd4fda6

    SHA1

    11bea9c34861852ddab2d75cbfafd984ae6630e9

    SHA256

    bd94e2689e8b34a13e4b42437c7a2ab5e580e4a8858585f66b028b634a0ce0dd

    SHA512

    5f231bcb7b97c060a8a37adae6b325faf9184eb0ec1ead45d5531e7599565ecf63218e785b0a063ea470f77a8e0771f3596873fc0daaa8b79f78746766ef9cfa

  • C:\Users\Admin\AppData\Roaming\Paint.exe

    Filesize

    1.2MB

    MD5

    12ae1adc5aaf9d26a1c860063da6ca70

    SHA1

    254f2b83e4c78a97fc649eea1c722974a71d5d73

    SHA256

    228f832b9b3c678d89589498771dd45cdd16ef3f1a2517c5fa08fa5a2aa3f083

    SHA512

    99816bf15062e71494a46f9aaa1ad15c21e232a3b3a1d91691c4778984d97799d2ea2bf00a56808d800fc3db268f3f9f10dae05ab3d4e0786ee60283e98716b0

  • F:\autorun.inf

    Filesize

    102B

    MD5

    5513829683bff23161ca7d8595c25c72

    SHA1

    9961b65bbd3bac109dddd3a161fc30650e8a7096

    SHA256

    94e323bd9071db7369ade16f45454e7a0dbfb6a39efddc1234c4719d1f7ee4c2

    SHA512

    308c84446106cda0a71e37b0de46aaf4b7361f9ddcc3c4c29f8e87da8acb606525dce8a42caf9d74e708c56b31c524f9535a2f5f4757c6c357401da1c495ddb6

  • memory/2112-289-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/2112-290-0x0000000000C90000-0x0000000000C91000-memory.dmp

    Filesize

    4KB

  • memory/2112-23-0x0000000000C90000-0x0000000000C91000-memory.dmp

    Filesize

    4KB

  • memory/2112-22-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/2112-21-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/2112-19-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/2112-18-0x0000000000400000-0x00000000004DB000-memory.dmp

    Filesize

    876KB

  • memory/4228-6-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-7-0x0000000005170000-0x00000000051C6000-memory.dmp

    Filesize

    344KB

  • memory/4228-11-0x00000000082F0000-0x00000000083FA000-memory.dmp

    Filesize

    1.0MB

  • memory/4228-10-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-9-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/4228-8-0x0000000007D00000-0x0000000007D16000-memory.dmp

    Filesize

    88KB

  • memory/4228-24-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-12-0x000000000AB20000-0x000000000ABF4000-memory.dmp

    Filesize

    848KB

  • memory/4228-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/4228-5-0x0000000004E80000-0x0000000004E8A000-memory.dmp

    Filesize

    40KB

  • memory/4228-4-0x0000000004ED0000-0x0000000004F62000-memory.dmp

    Filesize

    584KB

  • memory/4228-3-0x0000000005540000-0x0000000005AE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4228-2-0x0000000004D90000-0x0000000004E2C000-memory.dmp

    Filesize

    624KB

  • memory/4228-1-0x0000000000320000-0x000000000044E000-memory.dmp

    Filesize

    1.2MB