496b4b8659f199ff0114624c37e926359175dacc10df3a533643988f2f79b673

General

Target

dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Size

271KB
MD5

dc4a53a61e55064647ede6ff07b3bd6d
SHA1

4befd4a35e8b9e613f406c62017e34e51fbddf51
SHA256

496b4b8659f199ff0114624c37e926359175dacc10df3a533643988f2f79b673
SHA512

9b74000de07e85184c0a2801016cdbff278725186a3e5e85078aa59e6573d8c62b9161f2ed9e1b69498e9aef094b4d056c76b167e276fe5712328cfcfd22a225
SSDEEP

6144:+7VB+Pfl2OkSCt47sRjvD1tXaP1o6R7DRGPNv:kMcOkssRjZsdoKlq

Score

10^/10

bootkit discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\InetAccelerator.exe,"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\ProgramData\\InetAccelerator\\InetAccelerator.exe,C:\\Windows\\system32\\InetAccelerator.exe,"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\InetAccelerator\\InetAccelerator.exe,Explorer.exe,"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/208-0-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/208-6-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1888-10-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/1888-12-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/1888-17-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/1888-16-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/files/0x0008000000023490-22.dat	upx
behavioral2/memory/1888-29-0x0000000000400000-0x000000000045E000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\InetAccelerator = "C:\\Windows\\system32\\InetAccelerator.exe"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\InetAccelerator. = "C:\\ProgramData\\InetAccelerator\\InetAccelerator.exe"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\InetAccelerator = "C:\\Users\\Admin\\AppData\\Roaming\\InetAccelerator\\InetAccelerator.exe"	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

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.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\InetAccelerator.exe	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\InetAccelerator.exe	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 2208 set thread context of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
1888	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
1888	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
1888	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
1888	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 208 wrote to memory of 2208	208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	90
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91
PID 2208 wrote to memory of 1888	2208	dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:208
- C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dc4a53a61e55064647ede6ff07b3bd6d_JaffaCakes118.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\InetAccelerator\InetAccelerator.exe

Filesize
271KB

MD5
dc4a53a61e55064647ede6ff07b3bd6d

SHA1
4befd4a35e8b9e613f406c62017e34e51fbddf51

SHA256
496b4b8659f199ff0114624c37e926359175dacc10df3a533643988f2f79b673

SHA512
9b74000de07e85184c0a2801016cdbff278725186a3e5e85078aa59e6573d8c62b9161f2ed9e1b69498e9aef094b4d056c76b167e276fe5712328cfcfd22a225

Download Submit
memory/208-0-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/208-6-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1888-10-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1888-12-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1888-17-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1888-16-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1888-29-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2208-3-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2208-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2208-13-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/2208-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads