njrat | 605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a

General

Target

605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe
Size

443KB
MD5

61d8305b0f3144a90211c6ec2983a126
SHA1

5d5265f3335350e8d1da5d4e8d78826bc19e7781
SHA256

605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a
SHA512

f0d4f38ecbba8fd0a6f8297a8866a853721ad6fdcee4a3e228d6fd3f7c52d4a7b3478d666c1eb955793cfd6d259c01ad006e98080690466c993d1a30da8e23dd
SSDEEP

6144:YITAbgaibD9Ll7oNbdyqR/QPCbaBepbVcOqOEMXA+zU7om+JN8qmP7c4H:aDIBlkjB1FbaBVNkJN8Tc4

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:

system.exe

pid process

1688 system.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1280 netsh.exe

pid	process
1688	system.exe

pid	process
1280	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:

605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

system.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\047804f36e75d63d100178ea35bfa916 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\047804f36e75d63d100178ea35bfa916 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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:

system.exe

description	pid	process
Token: SeDebugPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe
Token: 33	1688	system.exe
Token: SeIncBasePriorityPrivilege	1688	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exesystem.exe

description	pid	process	target process
PID 4928 wrote to memory of 1688	4928	605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe	system.exe
PID 4928 wrote to memory of 1688	4928	605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe	system.exe
PID 4928 wrote to memory of 1688	4928	605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe	system.exe
PID 1688 wrote to memory of 1280	1688	system.exe	netsh.exe
PID 1688 wrote to memory of 1280	1688	system.exe	netsh.exe
PID 1688 wrote to memory of 1280	1688	system.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe
"C:\Users\Admin\AppData\Local\Temp\605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4928

C:\Users\Admin\AppData\Local\Temp\system.exe
"C:\Users\Admin\AppData\Local\Temp\system.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1280

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
443KB

MD5
61d8305b0f3144a90211c6ec2983a126

SHA1
5d5265f3335350e8d1da5d4e8d78826bc19e7781

SHA256
605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a

SHA512
f0d4f38ecbba8fd0a6f8297a8866a853721ad6fdcee4a3e228d6fd3f7c52d4a7b3478d666c1eb955793cfd6d259c01ad006e98080690466c993d1a30da8e23dd

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
443KB

MD5
61d8305b0f3144a90211c6ec2983a126

SHA1
5d5265f3335350e8d1da5d4e8d78826bc19e7781

SHA256
605036e8b9ea6b9a0d0560300c63b69b8fd5532f62df3e09a5e82c00b16d7d8a

SHA512
f0d4f38ecbba8fd0a6f8297a8866a853721ad6fdcee4a3e228d6fd3f7c52d4a7b3478d666c1eb955793cfd6d259c01ad006e98080690466c993d1a30da8e23dd

Download Submit
memory/1280-139-0x0000000000000000-mapping.dmp

Download
memory/1688-134-0x0000000000000000-mapping.dmp

Download
memory/1688-138-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/1688-140-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/4928-132-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/4928-133-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/4928-137-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads