Analysis

  • max time kernel
    3s
  • max time network
    4s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-10-2024 08:44

Errors

Reason
Machine shutdown

General

  • Target

    1c880eb8aaa88d35804cdc00ec1ad6be_JaffaCakes118.exe

  • Size

    445KB

  • MD5

    1c880eb8aaa88d35804cdc00ec1ad6be

  • SHA1

    68a06e660e9d7451dc15cf1eda8f4ab45e2930f9

  • SHA256

    84466b849c2ee067c513dadc5a23951636b3abd8b41f0e9d7bbcf974a4fe1446

  • SHA512

    b7a39eb3f434e86000875051a310fbaa2a41ec37d1cb3221ca5e7fc2d61ed85f6235e3952d71b1edb707699202b195cb14d8fa2257d2ff5dea635cd8e66cecda

  • SSDEEP

    12288:M+9SmNgYpiqMQuUadfdtTtcmeL71EQPxEvMCMUW:MIqYpPM5UadrTtctJSMCMUW

Malware Config

Signatures

  • Detected Xorist Ransomware 1 IoCs
  • Xorist Ransomware

    Xorist is a ransomware first seen in 2020.

  • Renames multiple (97) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 7 IoCs
  • UPX packed file 3 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c880eb8aaa88d35804cdc00ec1ad6be_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1c880eb8aaa88d35804cdc00ec1ad6be_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Windows\SysWOW64\coder.exe
      "C:\Windows\system32\coder.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:452
    • C:\Windows\SysWOW64\mbr-locker.exe
      "C:\Windows\system32\mbr-locker.exe"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1472
      • C:\Users\Admin\AppData\Local\Temp\sys3.exe
        C:\Users\Admin\AppData\Local\Temp\\sys3.exe
        3⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3788
    • C:\Windows\SysWOW64\îáõîä.exe
      "C:\Windows\system32\îáõîä.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4436
    • C:\Users\Admin\AppData\Local\Temp\sCheat.exe
      "C:\Users\Admin\AppData\Local\Temp\sCheat.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3372
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa39a2055 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\Lang\ÊÀÊ ÐÀÑØÈÔÐÎÂÀÒÜ ÔÀÉËÛ.txt

    Filesize

    301B

    MD5

    c0b2257570b3d11be28c93253aaae5f0

    SHA1

    b1f20d760a1cdeee566d7857deb88ca451c33722

    SHA256

    ffb6468be6a66d973ef143bf7cf8d059139bb15ca521c5296a3337457bfcc960

    SHA512

    69e3afd798ad3708e2dfcc9f5dd99e2593ed5f9ba45a7037845370236aa5d7893d407e4ec515498d4d11d933aa1a67031f605857932d829c2644f4b355bfa7c7

  • C:\Users\Admin\AppData\Local\Temp\sCheat.exe

    Filesize

    406KB

    MD5

    af14998ea9c9a7ab8250a8b9243b5505

    SHA1

    a868c979df09e426498618cac6301cf9d23e12c8

    SHA256

    469af5ff07386de5c8a0d7e6766820f76ec550ed730d108f7f654053f4d7b3ba

    SHA512

    50ca46efa70cdbe3dec881989dd79a099ec2076b93d7cf6a9a4a728ca26cc276efab534e4a9fb2e0e8bd8a22fda7fbc4cb5603beeb0e592b6d5c4d241d83eb39

  • C:\Users\Admin\AppData\Local\Temp\systm.txt

    Filesize

    34B

    MD5

    0f6aeead10fa4e4345421a9344920b54

    SHA1

    8c3fb95046aa8a49de5e0125a1734f6a61e1de9c

    SHA256

    f7fd935a5b2e344a8528c666005d010bb7fd75785075f4dbb89973f151409ee4

    SHA512

    dbd688e79df1af689e583e9835cb03e22769313ec38f69ef59934258f296a40e8495b62fec47ee2b60e7cb531b917ac23ca16f14519413c637588a7522f0eca0

  • C:\Windows\SysWOW64\coder.exe

    Filesize

    7KB

    MD5

    d871ac0f3fdcc234f1ba4f39bc76e6fb

    SHA1

    010fcadadce613eb45923dbbdee46440e8f74bb6

    SHA256

    08e15773a4caf5225e95ee3f9ebf2ca67b3d500053fb316dea875d5cf361271f

    SHA512

    0f56b1689661bd0978cfaa16876bd4b2ab3f0b1f6d1ec25bb09d1ea7e9b0a4e888972dbc32d272aa02ddc646061c901c6fed8de586c9406e56c4b9b925dec114

  • C:\Windows\SysWOW64\mbr-locker.exe

    Filesize

    10KB

    MD5

    5201eb8656d7f823e7d5253aeda7b5f7

    SHA1

    01ae8f476827afe420ae806c1a7654770342ff1c

    SHA256

    6e657c98282a118321c09cf76edef34deeb2d067cea41f4c130e32044830b865

    SHA512

    1b3ad3a18801c02522b069eee9253ddbdfac7414531eaa4ec9211dc7f3ef051e4fe984c451309f1d265bff96efbdc10d5004f7d5b329b20c52a4861a0daed923

  • C:\Windows\SysWOW64\îáõîä.exe

    Filesize

    22KB

    MD5

    e04fb60dc115ddc2368000bf4b7b934e

    SHA1

    60b33f31232a454120e1184bbc502577b9fe3ee5

    SHA256

    c1fc945b7aeca62e7af8b72663aeb676274360e0b05a8b1a12342e11e25ac109

    SHA512

    e59c2dc3e379ac2da1cba83895c9ae93f0a64146ebb593185081161aa0e88a9ebd617b57e0aca7d2f5e8bcd051460252ed8261b9f2cb7611e40bd98e448b5fcc

  • memory/452-10-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/452-278-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1472-126-0x000000002AA00000-0x000000002AA05000-memory.dmp

    Filesize

    20KB

  • memory/1472-29-0x000000002AA00000-0x000000002AA05000-memory.dmp

    Filesize

    20KB

  • memory/3372-256-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/3372-279-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/4436-101-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/4436-281-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB