jigsaw | df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763

Analysis

max time kernel
1561s
max time network
1565s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
19-11-2023 18:47

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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

pid	Process
1684	drpbx.exe

Loads dropped DLL 1 IoCs

pid	Process
1188	rBlbqI2.exe

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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	rBlbqI2.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	1188	rBlbqI2.exe
Token: SeDebugPrivilege	1684	drpbx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 1684	1188	rBlbqI2.exe	28
PID 1188 wrote to memory of 1684	1188	rBlbqI2.exe	28
PID 1188 wrote to memory of 1684	1188	rBlbqI2.exe	28
PID 1188 wrote to memory of 1684	1188	rBlbqI2.exe	28

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:1188
- 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
  - Suspicious use of AdjustPrivilegeToken
  PID:1684

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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/1188-26-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-6-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-5-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-48-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-52-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-10-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-14-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-18-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-20-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-24-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-0-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1188-32-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-36-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-40-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-42-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-46-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-50-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-56-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-60-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-64-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-68-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-66-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-62-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-58-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-54-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-8-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-4-0x0000000002330000-0x0000000002370000-memory.dmp

Filesize
256KB

Download
memory/1188-44-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-38-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-34-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-30-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-28-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-22-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-16-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-12-0x0000000001DF0000-0x0000000001E24000-memory.dmp

Filesize
208KB

Download
memory/1188-163-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/1188-3-0x0000000002330000-0x0000000002370000-memory.dmp

Filesize
256KB

Download
memory/1188-2-0x0000000002330000-0x0000000002370000-memory.dmp

Filesize
256KB

Download
memory/1188-1-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1188-171-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1684-172-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1684-173-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-176-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-179-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1684-181-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-183-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-336-0x0000000004710000-0x0000000004711000-memory.dmp

Filesize
4KB

Download
memory/1684-337-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1684-338-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-339-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-340-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download
memory/1684-341-0x0000000002070000-0x00000000020B0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads