njrat | f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e

General

Target

f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe
Size

23KB
MD5

20919f85bf91c4683bd92871ecb89d2e
SHA1

f03ca16c1e9cc3ee54ae874d05e3c69d36e978f3
SHA256

f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e
SHA512

bd167942f2a05a5ff8985ed3ae09723982ba60457e75cd8309bca6b9a736836baf3ed36378bebd1ced36988e1809334aa2c86b057bf10a8f6ec7dc953223d0dc
SSDEEP

384:bluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZlkU:kOmhtIiRpcnuo

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

ms-punisher.no.-ip.org:5552

Mutex

b891e7c3d69da1f506442cc213b2a72b

Attributes

reg_key
b891e7c3d69da1f506442cc213b2a72b
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

4904 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1484 netsh.exe

pid	process
4904	server.exe

pid	process
1484	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:

f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.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\b891e7c3d69da1f506442cc213b2a72b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b891e7c3d69da1f506442cc213b2a72b = "\"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 29 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe
Token: 33	4904	server.exe
Token: SeIncBasePriorityPrivilege	4904	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exeserver.exe

description	pid	process	target process
PID 2472 wrote to memory of 4904	2472	f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe	server.exe
PID 2472 wrote to memory of 4904	2472	f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe	server.exe
PID 2472 wrote to memory of 4904	2472	f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe	server.exe
PID 4904 wrote to memory of 1484	4904	server.exe	netsh.exe
PID 4904 wrote to memory of 1484	4904	server.exe	netsh.exe
PID 4904 wrote to memory of 1484	4904	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe
"C:\Users\Admin\AppData\Local\Temp\f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2472

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:4904

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:1484

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
23KB

MD5
20919f85bf91c4683bd92871ecb89d2e

SHA1
f03ca16c1e9cc3ee54ae874d05e3c69d36e978f3

SHA256
f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e

SHA512
bd167942f2a05a5ff8985ed3ae09723982ba60457e75cd8309bca6b9a736836baf3ed36378bebd1ced36988e1809334aa2c86b057bf10a8f6ec7dc953223d0dc

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

MD5
20919f85bf91c4683bd92871ecb89d2e

SHA1
f03ca16c1e9cc3ee54ae874d05e3c69d36e978f3

SHA256
f02c84e2280759e7a2a5e707582611e1ea7b28597ebdfc39b0cb23363d00b09e

SHA512
bd167942f2a05a5ff8985ed3ae09723982ba60457e75cd8309bca6b9a736836baf3ed36378bebd1ced36988e1809334aa2c86b057bf10a8f6ec7dc953223d0dc

Download Submit
memory/1484-139-0x0000000000000000-mapping.dmp

Download
memory/2472-132-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/2472-133-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/2472-138-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/4904-134-0x0000000000000000-mapping.dmp

Download
memory/4904-137-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/4904-140-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads