njrat | 5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb

General

Target

5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe
Size

23KB
MD5

2387a59ea2fd012660f4309403719829
SHA1

ba40a222616da48b91b65250e257ca3cd58ac7b3
SHA256

5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb
SHA512

caa43c0934955c06d0774cdfcb84badaaa5991063760c580d36383999d93873e07197a9b4cad8986136d18b3ea8c4f8afcb341bc3a6116a85ef6adc7d92dbe74

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

a47829835e21230213cd017c2b4b3e4f

Attributes

reg_key
a47829835e21230213cd017c2b4b3e4f
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

4416 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4820 netsh.exe

pid	process
4416	server.exe

pid	process
4820	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:

5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.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-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a47829835e21230213cd017c2b4b3e4f = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a47829835e21230213cd017c2b4b3e4f = "\"C:\\Users\\Admin\\AppData\\Roaming\\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 27 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe
Token: 33	4416	server.exe
Token: SeIncBasePriorityPrivilege	4416	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exeserver.exe

description	pid	process	target process
PID 4460 wrote to memory of 4416	4460	5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe	server.exe
PID 4460 wrote to memory of 4416	4460	5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe	server.exe
PID 4460 wrote to memory of 4416	4460	5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe	server.exe
PID 4416 wrote to memory of 4820	4416	server.exe	netsh.exe
PID 4416 wrote to memory of 4820	4416	server.exe	netsh.exe
PID 4416 wrote to memory of 4820	4416	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe
"C:\Users\Admin\AppData\Local\Temp\5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4416
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4820

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\Roaming\server.exe

Filesize
23KB

MD5
2387a59ea2fd012660f4309403719829

SHA1
ba40a222616da48b91b65250e257ca3cd58ac7b3

SHA256
5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb

SHA512
caa43c0934955c06d0774cdfcb84badaaa5991063760c580d36383999d93873e07197a9b4cad8986136d18b3ea8c4f8afcb341bc3a6116a85ef6adc7d92dbe74

Download Submit
C:\Users\Admin\AppData\Roaming\server.exe

Filesize
23KB

MD5
2387a59ea2fd012660f4309403719829

SHA1
ba40a222616da48b91b65250e257ca3cd58ac7b3

SHA256
5d77954b4c3d9502276ef66cde1a3e173cb80de4d67752bbb68053c901b471eb

SHA512
caa43c0934955c06d0774cdfcb84badaaa5991063760c580d36383999d93873e07197a9b4cad8986136d18b3ea8c4f8afcb341bc3a6116a85ef6adc7d92dbe74

Download Submit
memory/4416-132-0x0000000000000000-mapping.dmp

Download
memory/4416-136-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4416-138-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4460-130-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4460-131-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4460-135-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4820-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads