Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-12-2024 12:24

General

  • Target

    eebfa09c116e21d5d74c3828c4450f94_JaffaCakes118.exe

  • Size

    158KB

  • MD5

    eebfa09c116e21d5d74c3828c4450f94

  • SHA1

    5aece7b3fa05059798e512f5b632e77af237d54b

  • SHA256

    c8d0d7d13a57e0f8a2bbe0edd5f18260154e0b69d82d5c92ff2cbba41cf369ac

  • SHA512

    601a4607f8de8aefa61754f75ae77e59b00f0d7281f651cbc725a64554dd0fdf4df8d449f4f0c1383658b43db1e15cda78e00d0e4baffc4093ad1375da77d32a

  • SSDEEP

    3072:b1dlKwgj23+Oz05YoNozjXXLEsvDABOJUJsObFp6gEI:b1dlZro5yjXNNJUJL5QgEI

Malware Config

Extracted

Family

xtremerat

C2

0profx.no-ip.info

Signatures

  • Detect XtremeRAT payload 5 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Xtremerat family
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 8 IoCs
  • 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 8 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3540
      • C:\Users\Admin\AppData\Local\Temp\eebfa09c116e21d5d74c3828c4450f94_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\eebfa09c116e21d5d74c3828c4450f94_JaffaCakes118.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:920
        • C:\WINDOWS\SysWOW64\x.exe
          "C:\WINDOWS\system32\x.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2592
          • C:\WINDOWS\SysWOW64\kh.exe
            "C:\WINDOWS\system32\kh.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:972
            • C:\WINDOWS\SysWOW64\kh.exe
              StubPath
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2016
          • C:\Windows\SysWOW64\speedup.exe
            "C:\Windows\System32\speedup.exe"
            4⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3532
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              5⤵
              • Boot or Logon Autostart Execution: Active Setup
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              PID:1924
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:2724
        • C:\Windows\SysWOW64\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Windows\System32\download monsters.txt
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2872

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\sfx.ini

      Filesize

      215B

      MD5

      d6c77b95a7512deb1d2b1fe7a67ea60a

      SHA1

      1c52fc5a941e5fc6a2e0d446dbd2bffa6926bf90

      SHA256

      b6fb51ea974b7508804197f471a19a68dd5fa61274cb3707f7299420ad1a1269

      SHA512

      0035b79f75acd105ab70398a4bda0d56672f0cdcf3dafb0075af8e9394355889b10f95df23caffea1c8dce14eaa3d5ebb8c5cac32cbf3fc2b251285498f52d7d

    • C:\Users\Admin\AppData\Local\Temp\sfx.ini

      Filesize

      224B

      MD5

      f61bcd04ccef3564b10cbac736e27e8e

      SHA1

      19260cf4f210a30982de4eaec8ac898770a8b16a

      SHA256

      2133957a9fea95cddb6ad119b5f7fcfd441e59eececff2bff668197aa42ce7bb

      SHA512

      d003c4414b9571f7139a40aa1a7fa1194c60c917763e4494da145cf4dceb8864be7b2d762070ac5b0f86dbfac59d690fbd3c9863c8da4a3a1da30512f133b86e

    • C:\Windows\SysWOW64\download monsters.txt

      Filesize

      37B

      MD5

      7b0d18f2a0f3c805dc5b3e9ee76d12e9

      SHA1

      f8de011b6d444130b1f937ff9c7c725f1aa6b8ec

      SHA256

      cca46a8b080f6c526668c9be19f636d1b4a8e32677b46f7f6a47d9b16af61a2c

      SHA512

      e44a16a5a39a373cdfd24e17156cff6299592ade1fe815a9dc9dc301409ffee170fdbd9256762b2253b60f4af377d268ecd79ad76f24a605cf611f745dd2daa7

    • C:\Windows\SysWOW64\kh.exe

      Filesize

      9KB

      MD5

      f2fdc7ab781145e7a7692d1d259c487d

      SHA1

      00b9fca4a40f92069060eac8b23025c8d39d2429

      SHA256

      856874b9ce2c266d82c50a93e3464d3f921ebab635c6e0538d6703b03caa4460

      SHA512

      1af9f21bc88914e8a1702e7b822770a90a8c1c8b870c5d037006f55728518173833bd486d6e081a90baf883e2344897519a687e132f899a65bb3427f5b7f7d80

    • C:\Windows\SysWOW64\speedup.exe

      Filesize

      44KB

      MD5

      802e3d144eab1f448f10d2f36e392eaa

      SHA1

      b9a0241497812e6011155375b91978d3c1e359da

      SHA256

      867588b70c9437d2664fad19306b099009f550ab892f84520f7ea58c1c950707

      SHA512

      17123823315bfa3a92c03acf69cd6d25c55fe4c39ffb429a60c0b6d2ee994a91f4cc109ab5612721f8ba1001c7ad4981208cffb08c834f4975b4b6da9dafc4d3

    • C:\Windows\SysWOW64\x.exe

      Filesize

      121KB

      MD5

      82d1575943e84005042b375cf916c597

      SHA1

      ee73f950fcca9229433f0d920a47406c323e4340

      SHA256

      2985a22cf20655b7d517c5aed5a6d7d691aa0086183154399d66e384af086b3b

      SHA512

      d3b698cf1c29f701e95e98a57bb9227bbb652bcae9126f65f9c197d3537d09fa76905dd668f3a1a09e9b419d2276b03c6620fb8f941a067a0fd4de4165eded08

    • memory/972-51-0x0000000000400000-0x0000000000402600-memory.dmp

      Filesize

      9KB

    • memory/1924-63-0x0000000000C80000-0x0000000000C93000-memory.dmp

      Filesize

      76KB

    • memory/2724-66-0x0000000000C80000-0x0000000000C93000-memory.dmp

      Filesize

      76KB

    • memory/2724-69-0x0000000000C80000-0x0000000000C93000-memory.dmp

      Filesize

      76KB

    • memory/3532-67-0x0000000000C80000-0x0000000000C93000-memory.dmp

      Filesize

      76KB