d9bd8c9bf4ce14cabf9375a8cf3f6e3f2a1fc20185b63c0a6863eb05441feb98

Analysis

max time kernel
140s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 16:32

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General

Target

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
Size

21KB
MD5

63fa0dc4429e59eb8a370e0992962958
SHA1

d3a573a466dad1eaab0d68c7d9272d8bfe7f33dd
SHA256

d9bd8c9bf4ce14cabf9375a8cf3f6e3f2a1fc20185b63c0a6863eb05441feb98
SHA512

381b615fb980913d18e460b720b27a52cc1737a2523fe76b186387f8959db858d4a09eca6ebe48922f291c1c747f8dc92616d1c4b4f3f4b65d394e420eb76765
SSDEEP

384:xtmhqUNnSObO56sMzRgKUdctWIp1RYYUksezm73gFxyu/D3q:WhqUNSObOsPMEFSjbevq

Score

7^/10

persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

sysxp.exe

pid process

5104 sysxp.exe

pid	process
5104	sysxp.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1652-0-0x0000000000400000-0x000000000040F502-memory.dmp	upx
C:\Windows\SysWOW64\sysxp.exe	upx
behavioral2/memory/1652-9-0x0000000000400000-0x000000000040F502-memory.dmp	upx
behavioral2/memory/5104-12-0x0000000000400000-0x000000000040F502-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exesysxp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\key = "C:\\Windows\\system32\\sysxp.exe"	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\key = "C:\\Windows\\system32\\sysxp.exe"	sysxp.exe

Drops file in System32 directory 4 IoCs

Processes:

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exesysxp.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\sysxp.exe	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysxp.exe	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\sysxp.exe	sysxp.exe
File created	C:\Windows\SysWOW64\sysxp.exe	sysxp.exe

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

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exesysxp.exe

description pid process

Token: SeDebugPrivilege 1652 63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
Token: SeDebugPrivilege 5104 sysxp.exe

description	pid	process
Token: SeDebugPrivilege	1652	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
Token: SeDebugPrivilege	5104	sysxp.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe

description	pid	process	target process
PID 1652 wrote to memory of 5104	1652	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe	sysxp.exe
PID 1652 wrote to memory of 5104	1652	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe	sysxp.exe
PID 1652 wrote to memory of 5104	1652	63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe	sysxp.exe

C:\Users\Admin\AppData\Local\Temp\63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63fa0dc4429e59eb8a370e0992962958_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\SysWOW64\sysxp.exe
"C:\Windows\system32\sysxp.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:5104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\sysxp.exe

Filesize
21KB

MD5
63fa0dc4429e59eb8a370e0992962958

SHA1
d3a573a466dad1eaab0d68c7d9272d8bfe7f33dd

SHA256
d9bd8c9bf4ce14cabf9375a8cf3f6e3f2a1fc20185b63c0a6863eb05441feb98

SHA512
381b615fb980913d18e460b720b27a52cc1737a2523fe76b186387f8959db858d4a09eca6ebe48922f291c1c747f8dc92616d1c4b4f3f4b65d394e420eb76765

Download Submit
memory/1652-0-0x0000000000400000-0x000000000040F502-memory.dmp

Filesize
61KB

Download
memory/1652-9-0x0000000000400000-0x000000000040F502-memory.dmp

Filesize
61KB

Download
memory/5104-12-0x0000000000400000-0x000000000040F502-memory.dmp

Filesize
61KB

Download