jigsaw | 20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7

Resubmissions

09-10-2023 22:49

231009-2rt5kagh8t 10

12-06-2022 11:51

220612-n1jtasaden 10

Analysis

max time kernel
141s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2023 22:49

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General

Target

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe
Size

65KB
MD5

269de662c8b796f35e614a1aa807d769
SHA1

43f32f0e0d952dba0bc2cb3c0657291f0930ec8a
SHA256

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7
SHA512

4d99243d079668e08342dc015e8f0749b452fd0ae4a1f7b7d047a1b499289ca6044691641db661f90978082e8262e43bcb6230f9e87e0f7f770d568d9b381009
SSDEEP

1536:CjNlIZUY1sIzYi7D10Py7kCZnA37TuPAn:JZUYxYID6DUnArTuC

Score

10^/10

jigsaw persistence ransomware

Malware Config

Signatures

Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
ransomware jigsaw

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:

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe

Executes dropped EXE 1 IoCs

Processes:

drpbx.exe

pid process

3796 drpbx.exe

pid	process
3796	drpbx.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

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

System Information Discovery
T1082

flow	ioc
18	icanhazip.com

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exedrpbx.exe

description	pid	process
Token: SeDebugPrivilege	2232	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe
Token: SeDebugPrivilege	3796	drpbx.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe

description	pid	process	target process
PID 2232 wrote to memory of 3796	2232	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe	drpbx.exe
PID 2232 wrote to memory of 3796	2232	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe	drpbx.exe
PID 2232 wrote to memory of 3796	2232	20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe	drpbx.exe

C:\Users\Admin\AppData\Local\Temp\20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe
"C:\Users\Admin\AppData\Local\Temp\20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3796

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
Filesize
65KB

MD5
269de662c8b796f35e614a1aa807d769

SHA1
43f32f0e0d952dba0bc2cb3c0657291f0930ec8a

SHA256
20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7

SHA512
4d99243d079668e08342dc015e8f0749b452fd0ae4a1f7b7d047a1b499289ca6044691641db661f90978082e8262e43bcb6230f9e87e0f7f770d568d9b381009

Download Submit
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
Filesize
65KB

MD5
269de662c8b796f35e614a1aa807d769

SHA1
43f32f0e0d952dba0bc2cb3c0657291f0930ec8a

SHA256
20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7

SHA512
4d99243d079668e08342dc015e8f0749b452fd0ae4a1f7b7d047a1b499289ca6044691641db661f90978082e8262e43bcb6230f9e87e0f7f770d568d9b381009

Download Submit
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
Filesize
65KB

MD5
269de662c8b796f35e614a1aa807d769

SHA1
43f32f0e0d952dba0bc2cb3c0657291f0930ec8a

SHA256
20a637cd6394c41636133b24d78d52a0e091c8012cee9dbf6c4060656f6c7cb7

SHA512
4d99243d079668e08342dc015e8f0749b452fd0ae4a1f7b7d047a1b499289ca6044691641db661f90978082e8262e43bcb6230f9e87e0f7f770d568d9b381009

Download Submit
memory/2232-0-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/2232-1-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/2232-2-0x0000000001290000-0x00000000012A0000-memory.dmp

Filesize
64KB

Download
memory/2232-16-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/3796-17-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/3796-18-0x0000000000A30000-0x0000000000A40000-memory.dmp

Filesize
64KB

Download
memory/3796-19-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/3796-21-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download