njrat | 73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191

General

Target

73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe
Size

219KB
MD5

0e596efe9a8bbb4d233ff54ac93c1383
SHA1

e8e9396a91e551fb43eb43e33369bf0416bdbabe
SHA256

73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191
SHA512

e70e064fe15699e06c65ae83ff0532c74c94e488e4303b4144d3cc17eae10bfb1742b5f45aedf3f1d6f83734ce34f75a5631bfe285fa1edc5da3cb15780daa31
SSDEEP

6144:zV8xLIQ/j6TIZNhGWaOF33OWSkp1jyC37:xoMHUHKOxO+

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hacked

C2

kissme1988.no-ip.biz:5552

Mutex

dc57475995c921da5a2603cdc0101794

Attributes

reg_key
dc57475995c921da5a2603cdc0101794
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

278.exesystemBL.exe

pid process

4832 278.exe
4228 systemBL.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3600 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:

278.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 278.exe

pid	process
4832	278.exe
4228	systemBL.exe

pid	process
3600	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	278.exe

Drops startup file 2 IoCs

Processes:

systemBL.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe	systemBL.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe	systemBL.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systemBL.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .."	systemBL.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .."	systemBL.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{B7F6438A-5CFE-4EAE-B762-0053A22DC9D7}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{067BAED1-0669-4B7F-B052-5365B8EC7DD3}.catalogItem	svchost.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

systemBL.exe

description	pid	process
Token: SeDebugPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe
Token: 33	4228	systemBL.exe
Token: SeIncBasePriorityPrivilege	4228	systemBL.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe278.exesystemBL.exe

description	pid	process	target process
PID 2228 wrote to memory of 4832	2228	73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe	278.exe
PID 2228 wrote to memory of 4832	2228	73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe	278.exe
PID 2228 wrote to memory of 4832	2228	73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe	278.exe
PID 4832 wrote to memory of 4228	4832	278.exe	systemBL.exe
PID 4832 wrote to memory of 4228	4832	278.exe	systemBL.exe
PID 4832 wrote to memory of 4228	4832	278.exe	systemBL.exe
PID 4228 wrote to memory of 3600	4228	systemBL.exe	netsh.exe
PID 4228 wrote to memory of 3600	4228	systemBL.exe	netsh.exe
PID 4228 wrote to memory of 3600	4228	systemBL.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe
"C:\Users\Admin\AppData\Local\Temp\73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2228

C:\Users\Admin\AppData\Local\Temp\278.exe
C:\Users\Admin\AppData\Local\Temp\278.exe
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4832

C:\Users\Admin\AppData\Roaming\systemBL.exe
"C:\Users\Admin\AppData\Roaming\systemBL.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4228

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\systemBL.exe" "systemBL.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:3600

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2224

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

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\278.exe
Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
C:\Users\Admin\AppData\Local\Temp\278.exe
Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
C:\Users\Admin\AppData\Roaming\systemBL.exe
Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
C:\Users\Admin\AppData\Roaming\systemBL.exe
Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
memory/2228-133-0x00007FFD6C980000-0x00007FFD6D441000-memory.dmp

Filesize
10.8MB

Download
memory/2228-138-0x00007FFD6C980000-0x00007FFD6D441000-memory.dmp

Filesize
10.8MB

Download
memory/2228-139-0x00007FFD6C980000-0x00007FFD6D441000-memory.dmp

Filesize
10.8MB

Download
memory/2228-132-0x0000000000930000-0x000000000096E000-memory.dmp

Filesize
248KB

Download
memory/3600-146-0x0000000000000000-mapping.dmp

Download
memory/4228-145-0x0000000074900000-0x0000000074EB1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-147-0x0000000074900000-0x0000000074EB1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-141-0x0000000000000000-mapping.dmp

Download
memory/4832-140-0x0000000074900000-0x0000000074EB1000-memory.dmp

Filesize
5.7MB

Download
memory/4832-144-0x0000000074900000-0x0000000074EB1000-memory.dmp

Filesize
5.7MB

Download
memory/4832-137-0x0000000074900000-0x0000000074EB1000-memory.dmp

Filesize
5.7MB

Download
memory/4832-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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