f39b8e2e21f9736d0ee767b97543dceb58c7dd60baaf50eada5aec73f8613c77

General

Target

81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Size

4.0MB
MD5

81b920a2751255dae1257dcb92ecf68e
SHA1

bcfad187eaf61bb77b3861d512c8fc92df41295d
SHA256

f39b8e2e21f9736d0ee767b97543dceb58c7dd60baaf50eada5aec73f8613c77
SHA512

06c01e1ab0209ad6519f3da60c4c4dfc90c0b069c0d58cb3acf63ca708be6c149492823cdc6a01f1a7a8aadfec64e12522bd10198b1d81404bf8761e12d07add
SSDEEP

98304:/S4EprbxWVhe2LI4xiXuBeGeOhOPYNvh9YJ1zZ0xxI4ItpyMlKx01q:/SNWbNBYAZLYJPc/ItWxT

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/888-0-0x0000000000400000-0x0000000000932000-memory.dmp	upx
behavioral2/memory/888-18-0x0000000000400000-0x0000000000932000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\Count	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 888 set thread context of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.DynamicNS\Clsid\ = "{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}"	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}\ProgID\ = "81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.DynamicNS"	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe"	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.DynamicNS	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.DynamicNS\Clsid	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}\ = "DynamicNS"	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}\LocalServer32	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.DynamicNS\ = "DynamicNS"	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C379EAD1-CB34-4B09-AF6B-7E587F8BCD80}\ProgID	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
2668	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93
PID 888 wrote to memory of 2668	888	81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:888
- C:\Users\Admin\AppData\Local\Temp\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\81b920a2751255dae1257dcb92ecf68e_JaffaCakes118.exe"
  2⤵
  - Maps connected drives based on registry
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/888-18-0x0000000000400000-0x0000000000932000-memory.dmp

Filesize
5.2MB

Download
memory/888-1-0x0000000000F80000-0x0000000000F81000-memory.dmp

Filesize
4KB

Download
memory/888-0-0x0000000000400000-0x0000000000932000-memory.dmp

Filesize
5.2MB

Download
memory/2668-14-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-7-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-15-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-10-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-2-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-19-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-9-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-5-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-13-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-3-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-21-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-22-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-23-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2668-24-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download

Analysis

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