Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 23:40

General

  • Target

    fb1c9523c5d39b9993f253eabb729ecf_JaffaCakes118.exe

  • Size

    66KB

  • MD5

    fb1c9523c5d39b9993f253eabb729ecf

  • SHA1

    dcf1e48fbdafd27c2f4cb5f2662417060a7e526f

  • SHA256

    0a949f3ca17adc14b13221a85519f2607e7413b00db422f38270b06588db0309

  • SHA512

    50db067186516b4fabe01165f7c1d3e24096b1f5d7acc181184b54a6e2d5108607aec628b3f4e1c8db10ae334f2712be39b30b31d6669df1e17468c1e978c5cd

  • SSDEEP

    1536:RxHo2Lb5ieiVNSp3nzkMYGc2R9eTYtOd:RxI2RUNSRzjPclEm

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 3 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 37 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb1c9523c5d39b9993f253eabb729ecf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fb1c9523c5d39b9993f253eabb729ecf_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3884
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\unbPD7Ff2sVpV0s\xKjq1qS3lOx.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\unbPD7Ff2sVpV0s\xKjq1qS3lOx.exe" -Start
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2808
    • C:\Windows\SysWOW64\tmp.exe
      "C:\Windows\system32\tmp.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2268
      • C:\Windows\SysWOW64\tmp.exe
        C:\Windows\SysWOW64\tmp.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\WINDOWS\Cedie\csecs.exe
          C:\WINDOWS\Cedie\csecs.exe
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2428
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      http://c1.shooker.net/mn/c.php
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://c1.shooker.net/mn/c.php
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3860
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3860 CREDAT:17410 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3180

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          Filesize

          471B

          MD5

          26a530ee73be78630db043f4b5bd8889

          SHA1

          ec3c292b4e31813f36451a3e3bf25dbbd8986d04

          SHA256

          b2b21178dfef3ddd66650c43c8169a570fa5e6064ba1a27db37f5a6c12c0913d

          SHA512

          623470677efff3603c3564a3790eee35838b608c67ab5f965fbdf596e4342b1586be03a3db107a589398aec35e0c4e0c30f98b721379d0f9c6754f975db00194

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          Filesize

          404B

          MD5

          28734246197e4b2d90a5d93fd7462fbf

          SHA1

          784d4e5d2f0894a3429abdf7c033b635ed3afc5c

          SHA256

          b0aa03c9c825e086a4ceb287843cf8f24d6e4f77def4f1afa5d937baddf23817

          SHA512

          31d97e3681cd8e63aae5f009f8eb1c3544f7a9eeff70271bf3d57694beb6bef262410a04a1c05a69498e61fb2911cfc17b332563d678b0cc9eb239aecf78817a

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CFIOOOZS\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\unbPD7Ff2sVpV0s\xKjq1qS3lOx.exe

          Filesize

          24KB

          MD5

          4d9be80a4c1939aaaee153eaf701d388

          SHA1

          158da7957070cbd253d8ca989dac7ed9b013d501

          SHA256

          94f57914b5b4d02f68db7eb0bd0c69bd320f563a12bb7b4d4038c5c5cdc6d182

          SHA512

          a8b8a1a8822441e7ffd7448755c685a36d803074bb1b394889f2c4425bc3dc279d278e0abdb3ec0b6b6aff43a99372ba5772b046fb13d47688efbc197ebb3d4a

        • C:\Windows\Cedie\csecs.exe

          Filesize

          9.2MB

          MD5

          02304f25c3aa5834f5e00870a795d46e

          SHA1

          18d719c98b08c3880059a3ef25a56df4a596805d

          SHA256

          2674247f1805e10863151eab848bdd60fd3fc098271fc664fd746695fbece2fb

          SHA512

          858a8d3046f02b2b46454c7577972e68983b1fd29f5531a0ef8bf518c8e534203ca375ac81456c9b3da2b9a432083f4d4c5eb5b287322f496f85a2cb81c8b899

        • C:\Windows\SysWOW64\tmp.exe

          Filesize

          19KB

          MD5

          f98216c8ec56ffae60de27426782cdbc

          SHA1

          1a7453f95f5b457c0d79bab0b68a937f32020b85

          SHA256

          21431cb1b42a9d54582d72594dad884bc3c6a103cb4467700d61a76f7de88561

          SHA512

          3c67da42decd89627bae4ccfed70c15a4021cd72c42aa2eabee31252a9dd942a96099f1e862264efb23f74e0ac9be299c37775354e17b5562ecdff1cbd025f4b

        • \??\c:\573.txt

          Filesize

          27B

          MD5

          37ded06c94faa0b0eda39e65984b5a62

          SHA1

          2772fec3d3d47811d5415604087f60b5393b3430

          SHA256

          1971a724ae6cfa3628fcf6554a2b48f0ba175216800154d9294c43fe91ef91d0

          SHA512

          12633fdc728cae2ac65f8bec4a2ad47a67191e9cec5722fec931055f9e4abc946b944a302da6e9c4b48ed31ea1949149cc64a02b83ef54bbc879793ae3b88a4c

        • memory/3884-0-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/3884-31-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/3884-32-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB