d104f1a6b786a4e64108a3d96fcf4203f5d7bffef8bf1e91b7a5246a2924cf9f

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 05:31

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General

Target

622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe
Size

2.8MB
MD5

622ff379d9852f9faf8bd4ed59cf2b58
SHA1

6fee04a980edca1f2544943ef63d235c7b5a27b0
SHA256

d104f1a6b786a4e64108a3d96fcf4203f5d7bffef8bf1e91b7a5246a2924cf9f
SHA512

3e95a0407f53ffb292638e8f45efaf34af239e4bc7a53761cab6f186661629a99fb9c3935ac1f4aaead8eae8fc2a164f4e802b7543e106a162b5ecd4c862faee
SSDEEP

49152:ugG0fLQDLhDRMq3ybbmPofwEZcH6VzHEWV4bE2aqbomqk+sP37vfq7sa0h:uV0f8DhRMkybqQkaNkdAqMmqk+sPrvfJ

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1688-0-0x0000000000400000-0x00000000004AB000-memory.dmp	upx
behavioral1/memory/1688-6-0x0000000000400000-0x00000000004AB000-memory.dmp	upx
behavioral1/memory/1688-8-0x0000000000400000-0x00000000004AB000-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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Extremecarving Screen Saver.scr	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\Extremecarving Screen Saver.scr	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\ss3unstl.exe	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe

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

System Information Discovery
T1082

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\EXTREM~1.SCR"	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\ScreenSaveActive = "1"	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1960	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1688	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1960	1688	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe	28
PID 1688 wrote to memory of 1960	1688	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe	28
PID 1688 wrote to memory of 1960	1688	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe	28
PID 1688 wrote to memory of 1960	1688	622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\622ff379d9852f9faf8bd4ed59cf2b58_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\readme.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:1960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\readme.txt

Filesize
516B

MD5
0db1833d36441236e27b5aecbbf9417b

SHA1
90d5be5808f1327e11be4d59a3d76c6a4f737eea

SHA256
57531bcb3813a535b75d24774f9f839f0c634ee79863ebfa2f208eecb9fadeb1

SHA512
dc205b994bff9a2d597cd98e0ee505ec688529aa0bf12dfc5734fbb383879b6a67a045482ac548d422944d540997716f168fd3e37f068a80eab6ee90a0a43d2f

Download Submit
memory/1688-0-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1688-6-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1688-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download