njrat | 882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1

General

Target

882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe
Size

23KB
MD5

300030c484a0e5846c01c8a5eb8a0c8d
SHA1

31ae9bd60367dea8ba5fdc5fea77afac07e72883
SHA256

882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1
SHA512

39e65aef7cbe47a2ba114748e859b669a85cca61173b01a75f56b2dfc9b072482d330ead0cd2e5c70d64c255af46ba7dc84ea09696e73fcd2cc8c03627dc4dc4
SSDEEP

384:l/qUP2x0R4IxVISuI+M/Pdw6jgFI6VeOj1mRvR6JZlbw8hqIusZzZnFL:X4oA1Ic4Rpcnui

Score

10^/10

njrat ş ɑ͠ w̨̐ ☺☺☺ вłɑ͠c̝̚ķ evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

ş ɑ͠ w̨̐ ☺☺☺ вłɑ͠c̝̚Ķ

C2

dzsaw10.no-ip.biz:55553

Mutex

4526c2cf151360c0d11ddeeb9772e52a

Attributes

reg_key
4526c2cf151360c0d11ddeeb9772e52a
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

siystam.exe

pid process

1752 siystam.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3204 netsh.exe

pid	process
1752	siystam.exe

pid	process
3204	netsh.exe

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:

882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

siystam.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4526c2cf151360c0d11ddeeb9772e52a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\siystam.exe\" .."	siystam.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4526c2cf151360c0d11ddeeb9772e52a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\siystam.exe\" .."	siystam.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

siystam.exe

description	pid	process
Token: SeDebugPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe
Token: 33	1752	siystam.exe
Token: SeIncBasePriorityPrivilege	1752	siystam.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exesiystam.exe

description	pid	process	target process
PID 808 wrote to memory of 1752	808	882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe	siystam.exe
PID 808 wrote to memory of 1752	808	882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe	siystam.exe
PID 808 wrote to memory of 1752	808	882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe	siystam.exe
PID 1752 wrote to memory of 3204	1752	siystam.exe	netsh.exe
PID 1752 wrote to memory of 3204	1752	siystam.exe	netsh.exe
PID 1752 wrote to memory of 3204	1752	siystam.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe
"C:\Users\Admin\AppData\Local\Temp\882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808

C:\Users\Admin\AppData\Local\Temp\siystam.exe
"C:\Users\Admin\AppData\Local\Temp\siystam.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\siystam.exe" "siystam.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:3204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\siystam.exe
Filesize
23KB

MD5
300030c484a0e5846c01c8a5eb8a0c8d

SHA1
31ae9bd60367dea8ba5fdc5fea77afac07e72883

SHA256
882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1

SHA512
39e65aef7cbe47a2ba114748e859b669a85cca61173b01a75f56b2dfc9b072482d330ead0cd2e5c70d64c255af46ba7dc84ea09696e73fcd2cc8c03627dc4dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\siystam.exe
Filesize
23KB

MD5
300030c484a0e5846c01c8a5eb8a0c8d

SHA1
31ae9bd60367dea8ba5fdc5fea77afac07e72883

SHA256
882e02de429cb9f28dbee364485afe3956bc9f7ee1b52e021bcd5d6614e0b4d1

SHA512
39e65aef7cbe47a2ba114748e859b669a85cca61173b01a75f56b2dfc9b072482d330ead0cd2e5c70d64c255af46ba7dc84ea09696e73fcd2cc8c03627dc4dc4

Download Submit
memory/808-132-0x0000000075280000-0x0000000075831000-memory.dmp

Filesize
5.7MB

Download
memory/808-136-0x0000000075280000-0x0000000075831000-memory.dmp

Filesize
5.7MB

Download
memory/1752-133-0x0000000000000000-mapping.dmp

Download
memory/1752-137-0x0000000075280000-0x0000000075831000-memory.dmp

Filesize
5.7MB

Download
memory/1752-138-0x0000000075280000-0x0000000075831000-memory.dmp

Filesize
5.7MB

Download
memory/3204-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads