njrat | 84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286

General

Target

84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe
Size

27KB
MD5

014f92ef9fac6279662138f915980ad5
SHA1

cf25da0943661adf38b715e3467fda54904f58d5
SHA256

84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286
SHA512

4877a104e7ef866a600f1270679ec4f96c90927d9e08f8c2c4ebff397e77798e7457b54f2e387d039ad0194edb5ef71514afd46449ef9e7c3ad9f28cfc73d632
SSDEEP

384:A+n2650N3qZbATcjRGC5Eo9D46BgnqUhay1ZmRvR6JZlbw8hqIusZzZGb3vM3fBy:vm+71d5XRpcnub3E3pVgDT

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

nawrasoon.ddns.net:1920

Mutex

f0c5bb765041585c51e5b576594f5166

Attributes

reg_key
f0c5bb765041585c51e5b576594f5166
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

216 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4676 netsh.exe

pid	process
216	server.exe

pid	process
4676	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:

84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f0c5bb765041585c51e5b576594f5166 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f0c5bb765041585c51e5b576594f5166 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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 25 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe
Token: 33	216	server.exe
Token: SeIncBasePriorityPrivilege	216	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exeserver.exe

description	pid	process	target process
PID 4072 wrote to memory of 216	4072	84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe	server.exe
PID 4072 wrote to memory of 216	4072	84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe	server.exe
PID 4072 wrote to memory of 216	4072	84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe	server.exe
PID 216 wrote to memory of 4676	216	server.exe	netsh.exe
PID 216 wrote to memory of 4676	216	server.exe	netsh.exe
PID 216 wrote to memory of 4676	216	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe
"C:\Users\Admin\AppData\Local\Temp\84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4072

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:216

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4676

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\server.exe

Filesize
27KB

MD5
014f92ef9fac6279662138f915980ad5

SHA1
cf25da0943661adf38b715e3467fda54904f58d5

SHA256
84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286

SHA512
4877a104e7ef866a600f1270679ec4f96c90927d9e08f8c2c4ebff397e77798e7457b54f2e387d039ad0194edb5ef71514afd46449ef9e7c3ad9f28cfc73d632

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
27KB

MD5
014f92ef9fac6279662138f915980ad5

SHA1
cf25da0943661adf38b715e3467fda54904f58d5

SHA256
84a8df3bd6f3d5374160937906bbbacb0bb0fd8b33fb95b1bad0de08cd06f286

SHA512
4877a104e7ef866a600f1270679ec4f96c90927d9e08f8c2c4ebff397e77798e7457b54f2e387d039ad0194edb5ef71514afd46449ef9e7c3ad9f28cfc73d632

Download Submit
memory/216-134-0x0000000000000000-mapping.dmp

Download
memory/216-137-0x0000000074AD0000-0x0000000075081000-memory.dmp

Filesize
5.7MB

Download
memory/216-140-0x0000000074AD0000-0x0000000075081000-memory.dmp

Filesize
5.7MB

Download
memory/4072-132-0x0000000074AD0000-0x0000000075081000-memory.dmp

Filesize
5.7MB

Download
memory/4072-133-0x0000000074AD0000-0x0000000075081000-memory.dmp

Filesize
5.7MB

Download
memory/4072-138-0x0000000074AD0000-0x0000000075081000-memory.dmp

Filesize
5.7MB

Download
memory/4676-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads