jigsaw | df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763

General

Target

rBlbqI2.exe
Size

291KB
MD5

2fec9bf50de5395f799b23a1099b10d6
SHA1

6000969e75d7d7a3fa1b908bdb9d5daeb5f2534e
SHA256

df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763
SHA512

5f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8
SSDEEP

6144:pdSK04ETTZ+4TBpvjLCnVlBpevKBauJirVuD05VSKJ:poL4EnU4T/vjLeVlayRihuA5D

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
Executes dropped EXE 1 IoCs

Processes:

drpbx.exe

pid process

752 drpbx.exe
Loads dropped DLL 1 IoCs

Processes:

rBlbqI2.exe

pid process

1996 rBlbqI2.exe

pid	process
752	drpbx.exe

pid	process
1996	rBlbqI2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rBlbqI2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	rBlbqI2.exe

Drops file in Program Files directory 64 IoCs

Processes:

drpbx.exe

description	ioc	process
File opened for modification	C:\Program Files\ResetTrace.xlsx	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_bw120.jpg	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color32.jpg	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\fi.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\io.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\it.txt	drpbx.exe
File created	C:\Program Files\RequestInstall.pptx.zemblax	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\da.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\el.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\kk.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ku.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sv.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\avtransport.xml	drpbx.exe
File opened for modification	C:\Program Files\Windows NT\TableTextService\TableTextServiceYi.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lij.txt	drpbx.exe
File opened for modification	C:\Program Files\Windows NT\TableTextService\TableTextServiceArray.txt	drpbx.exe
File opened for modification	C:\Program Files\PingUnlock.png	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eo.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fi.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ga.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\hu.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\an.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ga.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ps.txt	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\DMR_48.png	drpbx.exe
File created	C:\Program Files (x86)\Microsoft.NET\RedistList\AssemblyList_4_extended.xml.zemblax	drpbx.exe
File created	C:\Program Files\WriteSubmit.pptx.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kab.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\kab.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng2.txt	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.BusinessData.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\Office14\Mso Example Setup File A.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\COPYING.txt	drpbx.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\README.txt	drpbx.exe
File created	C:\Program Files\PingUnlock.png.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ar.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ba.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\is.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mn.txt	drpbx.exe
File created	C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME-JAVAFX.txt.zemblax	drpbx.exe
File created	C:\Program Files\VideoLAN\VLC\README.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_bw48.bmp	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ar.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\de.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\fr.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\fur.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ug.txt	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SketchPadTestSchema.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\af.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ku.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.zemblax	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\lt.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\Media Renderer\avtransport.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ru.txt.zemblax	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCellMCE.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows NT\TableTextService\TableTextServiceSimplifiedZhengMa.txt	drpbx.exe
File created	C:\Program Files\RemoveNew.mpa.zemblax	drpbx.exe
File created	C:\Program Files\RestartConvertFrom.avi.zemblax	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\br.txt	drpbx.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:

rBlbqI2.exedrpbx.exe

description pid process

Token: SeDebugPrivilege 1996 rBlbqI2.exe
Token: SeDebugPrivilege 752 drpbx.exe

description	pid	process
Token: SeDebugPrivilege	1996	rBlbqI2.exe
Token: SeDebugPrivilege	752	drpbx.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

rBlbqI2.exe

description	pid	process	target process
PID 1996 wrote to memory of 752	1996	rBlbqI2.exe	drpbx.exe
PID 1996 wrote to memory of 752	1996	rBlbqI2.exe	drpbx.exe
PID 1996 wrote to memory of 752	1996	rBlbqI2.exe	drpbx.exe
PID 1996 wrote to memory of 752	1996	rBlbqI2.exe	drpbx.exe

C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe
"C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996

C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:752

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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
291KB

MD5
2fec9bf50de5395f799b23a1099b10d6

SHA1
6000969e75d7d7a3fa1b908bdb9d5daeb5f2534e

SHA256
df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763

SHA512
5f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8

Download Submit
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
Filesize
291KB

MD5
2fec9bf50de5395f799b23a1099b10d6

SHA1
6000969e75d7d7a3fa1b908bdb9d5daeb5f2534e

SHA256
df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763

SHA512
5f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8

Download Submit
\Users\Admin\AppData\Local\Drpbx\drpbx.exe
Filesize
291KB

MD5
2fec9bf50de5395f799b23a1099b10d6

SHA1
6000969e75d7d7a3fa1b908bdb9d5daeb5f2534e

SHA256
df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763

SHA512
5f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8

Download Submit
memory/752-189-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/752-192-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-191-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-344-0x0000000001F40000-0x0000000001F41000-memory.dmp

Filesize
4KB

Download
memory/752-190-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-186-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-184-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-182-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-177-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/752-176-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/752-345-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/752-367-0x0000000001F60000-0x0000000001FA0000-memory.dmp

Filesize
256KB

Download
memory/1996-21-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-69-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-25-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-27-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-29-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-33-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-37-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-41-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-43-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-45-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-47-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-49-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-53-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-57-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-61-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-65-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-63-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-59-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-55-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-51-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-39-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-35-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-31-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-23-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-71-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-67-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-166-0x0000000001F60000-0x0000000001F61000-memory.dmp

Filesize
4KB

Download
memory/1996-167-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-170-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-0-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/1996-19-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-17-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-15-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-179-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/1996-13-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-11-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-9-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-8-0x0000000004570000-0x00000000045A4000-memory.dmp

Filesize
208KB

Download
memory/1996-7-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-6-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-5-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/1996-4-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-3-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download
memory/1996-2-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1996-1-0x00000000740F0000-0x000000007469B000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads