njrat | 7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed

General

Target

7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe
Size

295KB
MD5

976c9a37426d13551b9fa9c729a776fa
SHA1

0ef8432c846758be24f61a9547bc1a3465853a9c
SHA256

7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed
SHA512

45bfe3263b87e7394accc5fc936bcd93e02e6890375a104388b5f46a9ba8607285e5eabb5466d27275df95fe1549dc1d69d4fe3d3b4d6dc2809f242a28e5196b
SSDEEP

6144:XF2a1VrPUVqTYDj72GhNnkYqqfLdI64nqS/lB:V2EBPMoOn2iNNq44d

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

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

Processes:

svchost.exe

pid process

3428 svchost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1876 netsh.exe

pid	process
3428	svchost.exe

pid	process
1876	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:

7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b33487bbde5a3e79118d90fbf5ed678a.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b33487bbde5a3e79118d90fbf5ed678a.exe	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b33487bbde5a3e79118d90fbf5ed678a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b33487bbde5a3e79118d90fbf5ed678a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.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 31 IoCs

Processes:

svchost.exe

description	pid	process
Token: SeDebugPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe
Token: 33	3428	svchost.exe
Token: SeIncBasePriorityPrivilege	3428	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exesvchost.exe

description	pid	process	target process
PID 2544 wrote to memory of 3428	2544	7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe	svchost.exe
PID 2544 wrote to memory of 3428	2544	7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe	svchost.exe
PID 2544 wrote to memory of 3428	2544	7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe	svchost.exe
PID 3428 wrote to memory of 1876	3428	svchost.exe	netsh.exe
PID 3428 wrote to memory of 1876	3428	svchost.exe	netsh.exe
PID 3428 wrote to memory of 1876	3428	svchost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe
"C:\Users\Admin\AppData\Local\Temp\7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2544

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1876

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
295KB

MD5
976c9a37426d13551b9fa9c729a776fa

SHA1
0ef8432c846758be24f61a9547bc1a3465853a9c

SHA256
7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed

SHA512
45bfe3263b87e7394accc5fc936bcd93e02e6890375a104388b5f46a9ba8607285e5eabb5466d27275df95fe1549dc1d69d4fe3d3b4d6dc2809f242a28e5196b

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
295KB

MD5
976c9a37426d13551b9fa9c729a776fa

SHA1
0ef8432c846758be24f61a9547bc1a3465853a9c

SHA256
7a3ac6dd3d13ab788f389ec5452bac3065491564d1213c25c58fc7bcbddf2eed

SHA512
45bfe3263b87e7394accc5fc936bcd93e02e6890375a104388b5f46a9ba8607285e5eabb5466d27275df95fe1549dc1d69d4fe3d3b4d6dc2809f242a28e5196b

Download Submit
memory/1876-143-0x0000000000000000-mapping.dmp

Download
memory/2544-135-0x0000000000750000-0x00000000007A2000-memory.dmp

Filesize
328KB

Download
memory/2544-136-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/2544-137-0x00000000051C0000-0x0000000005252000-memory.dmp

Filesize
584KB

Download
memory/2544-138-0x0000000005260000-0x00000000052FC000-memory.dmp

Filesize
624KB

Download
memory/2544-139-0x0000000005150000-0x000000000515A000-memory.dmp

Filesize
40KB

Download
memory/3428-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads