jigsaw | 95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

Resubmissions

19-11-2023 18:53

231119-xj5h4sca3v 10

08-10-2023 17:05

231008-vl1a3aee91 10

Analysis

max time kernel
157s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2023 17:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEAS.tmp_JC.exe
Size

5.3MB
MD5

79b6d4f066d1875b18de19ad54177fa7
SHA1

d99188afd625268875b1050bd561a72c51d51d38
SHA256

95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c
SHA512

365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6
SSDEEP

49152:CGUKMViI+OozP3w5C49ckglrOugdutUeUCyLQrO/LH:IK0iI+HPA

Score

10^/10

jigsaw persistence ransomware upx

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	NEAS.tmp_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
4728	drpbx.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1232-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x00060000000231c9-169.dat	upx
behavioral2/files/0x00060000000231c9-175.dat	upx
behavioral2/files/0x00060000000231c9-176.dat	upx
behavioral2/memory/1232-179-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4728-345-0x0000000000400000-0x0000000000454000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	NEAS.tmp_JC.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	NEAS.tmp_JC.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	NEAS.tmp_JC.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\readme.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\el.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eu.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_2019.19071.19011.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mk.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sl.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0000-1000-0000000FF1CE.xml.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\lt.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sq.txt	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0000-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\networkmanifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\OpenGroup.3gp.zemblax	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\THIRDPARTYLICENSEREADME.txt.zemblax	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0000-1000-0000000FF1CE.xml.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AuthoredExtensions.16.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftEdge.Stable_92.0.902.67_neutral__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\FileSystemMetadata.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sr-spc.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.UWPDesktop_14.0.27629.0_x64__8wekyb3d8bbwe\logo.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\offlineUtilities.js	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_2019.1111.2029.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\yo.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\VideoLAN\VLC\AUTHORS.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AuthoredExtensions.16.xml.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\AssertWrite.pdf.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lt.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Paint_PDP.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.UWPDesktop_14.0.27629.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eo.txt	drpbx.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\THIRDPARTYLICENSEREADME.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_2019.716.2316.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files (x86)\Common Files\Services\verisign.bmp	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bg.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\zh-cn.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0409-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ko.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0409-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_2019.716.2313.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sa.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\Third Party Notices.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\webviewCore.min.js	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\DMR_120.png	drpbx.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	NEAS.tmp_JC.exe
File created	C:\Windows\assembly\Desktop.ini	NEAS.tmp_JC.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	NEAS.tmp_JC.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

description	pid	Process
Token: SeDebugPrivilege	1232	NEAS.tmp_JC.exe
Token: SeDebugPrivilege	4728	drpbx.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 4728	1232	NEAS.tmp_JC.exe	86
PID 1232 wrote to memory of 4728	1232	NEAS.tmp_JC.exe	86
PID 1232 wrote to memory of 4728	1232	NEAS.tmp_JC.exe	86

C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4728

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

Filesize
5.3MB

MD5
79b6d4f066d1875b18de19ad54177fa7

SHA1
d99188afd625268875b1050bd561a72c51d51d38

SHA256
95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

SHA512
365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6

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

Filesize
5.3MB

MD5
79b6d4f066d1875b18de19ad54177fa7

SHA1
d99188afd625268875b1050bd561a72c51d51d38

SHA256
95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

SHA512
365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6

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

Filesize
5.3MB

MD5
79b6d4f066d1875b18de19ad54177fa7

SHA1
d99188afd625268875b1050bd561a72c51d51d38

SHA256
95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

SHA512
365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6

Download Submit
memory/1232-23-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-9-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-7-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-55-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-53-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-13-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-15-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-19-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-17-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-21-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1232-25-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-27-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-29-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-31-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-33-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-35-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-37-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-39-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-41-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-45-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-43-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-47-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-49-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-51-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-11-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-6-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-57-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-59-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-61-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-63-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-65-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-67-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-69-0x0000000004C60000-0x0000000004C94000-memory.dmp

Filesize
208KB

Download
memory/1232-164-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

Filesize
4KB

Download
memory/1232-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1232-3-0x00000000025C0000-0x00000000025D0000-memory.dmp

Filesize
64KB

Download
memory/1232-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1232-179-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1232-180-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-181-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-183-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-185-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/4728-187-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/4728-343-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/4728-344-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-345-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4728-346-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/4728-347-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-348-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/4728-350-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/4728-370-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads