Overview

overview

8

Static

static

7

fc5820cc6f...18.exe

windows7-x64

8

fc5820cc6f...18.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 08:29

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General

  • Target

    fc5820cc6f4ee06de47249ec8ed3afc1_JaffaCakes118.exe

  • Size

    525KB

  • MD5

    fc5820cc6f4ee06de47249ec8ed3afc1

  • SHA1

    e8eec4be470d99387a35794b0594b19c59ad73b0

  • SHA256

    a17e76adefe08655eca8c581023081940aeb170343d8307470ba6de47e925d8c

  • SHA512

    c7938c4204138d1e3095a8fb8d15f5ed2b525b049164f20bb5f4dced54da3c2eee8e2e051d64626164e5e9279590d481d4f5ae97f084cf9d52b26ccf619868dc

  • SSDEEP

    6144:C7fy6Ezozt81ENRd3Qs1OUdK8N+VQs7PlWlBjPKXPXwboCTms51t1wZXzYEGgJrF:/bt1kRdAs1OYKPlWlBjifyPTmfWq

Score
8/10
bootkitpersistencespywarestealerupx

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • UPX packed file 5 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

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

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc5820cc6f4ee06de47249ec8ed3afc1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc5820cc6f4ee06de47249ec8ed3afc1_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:544
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\bodsa.exe "C:\Users\Admin\AppData\Local\Temp\fc5820cc6f4ee06de47249ec8ed3afc1_JaffaCakes118.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4228
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:4924
      • C:\Users\Admin\AppData\Local\Temp\bodsa.exe
        C:\Users\Admin\AppData\Local\Temp\\bodsa.exe "C:\Users\Admin\AppData\Local\Temp\fc5820cc6f4ee06de47249ec8ed3afc1_JaffaCakes118.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2404
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\vabcu\bwjci.wcb",XML_MemFree C:\Users\Admin\AppData\Local\Temp\bodsa.exe
          4⤵
          • Blocklisted process makes network request
          • Checks computer location settings
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2196
          • \??\c:\windows\SysWOW64\taskkill.exe
            taskkill /f /im attrib.exe
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1640
          • C:\wiseman.exe
            "C:\wiseman.exe"
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetWindowsHookEx
            PID:3744

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\bodsa.exe
    Filesize

    525KB

    MD5

    0ccdf153b514394ca820a6ef50c311af

    SHA1

    328fb243e968258ffdb403948913c346e11b7997

    SHA256

    8f44a3b3048661cd1bfbb868c25e12e54e17c3c4ec77db929a73501808a1d059

    SHA512

    92c22ad950bfb4d536db2517185dd729147a75434e2ca3d0767e5c77eb1625d52dc592f05b498c539bc86bcaa8423c8ec35b8cecadc4012b7d377cc416de25db

    Download Submit
  • C:\wiseman.exe
    Filesize

    378KB

    MD5

    8f242369cf14f2b26ced131d7dd67144

    SHA1

    d4f2f0f3047300ff5f36af6119ad5e109258fcd0

    SHA256

    03505198d487e04a8ec82c627d34e4d9145f211140c4c8793b4461621e6bf6ce

    SHA512

    4516b3fa2f68e64baf166bc7731ba3bb0ca53d36d71ff8fa78b1f211d7c14fc4442af50bd637d0c3f11913583c9c66996101d6e8738592a053e82a78bbd771f5

    Download Submit
  • \??\c:\vabcu\bwjci.wcb
    Filesize

    62KB

    MD5

    fb1d904d905d0f177e0fe9d0ac8a44a5

    SHA1

    c3b5ce7e61697e8e604cde525770e002175f2f96

    SHA256

    49d6d364a910ad716fa3ad6229479b2af0f0451ed41e9adc7d8537801cd67c2a

    SHA512

    07bc9a2f0281fa6f99d5a0554190fa5671fc2c8bf1029f22745ddc73f33d7f57850104aec3d83c131f870b2f5197831a9e7f073f10596560c3117d2a37935647

    Download Submit
  • memory/2196-8-0x0000000010000000-0x000000001002A000-memory.dmp
    Filesize

    168KB

    Download
  • memory/2196-11-0x0000000010000000-0x000000001002A000-memory.dmp
    Filesize

    168KB

    Download
  • memory/2196-13-0x0000000010000000-0x000000001002A000-memory.dmp
    Filesize

    168KB

    Download