njrat | 36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bc

General

Target

36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe
Size

43KB
MD5

b1283fbe4ed44ab1d1933fb2976a1aa0
SHA1

c344656fd10baa86224e3da852ffd37293a8882b
SHA256

36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bc
SHA512

4d5972c134d7b148509a7ff6e27edd118377e9647b47ca569fb8244b79fde441b0d3bdd645fd804d1e1fccf3ef4f16658becbf1a29719fc3182283332faeafa5
SSDEEP

384:bqZyaKVarEvEyeD0brquFENf9QFkznIij+ZsNO3PlpJKkkjh/TzF7pWnamgreT0k:ERKMYvReDwrpWfqNuXQ/ofC+L

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

192.168.0.11:5552

Mutex

yandex

Attributes

reg_key
yandex
splitter
|Hassan|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yandex.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yandex.exe	Dllhost.exe

Executes dropped EXE 3 IoCs

pid	Process
2640	Dllhost.exe
3480	Server.exe
1184	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yandex = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yandex = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2780	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2304	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe
2640	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe
Token: 33	2640	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2640	Dllhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2640	2304	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe	86
PID 2304 wrote to memory of 2640	2304	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe	86
PID 2304 wrote to memory of 2640	2304	36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe	86
PID 2640 wrote to memory of 2780	2640	Dllhost.exe	93
PID 2640 wrote to memory of 2780	2640	Dllhost.exe	93
PID 2640 wrote to memory of 2780	2640	Dllhost.exe	93

C:\Users\Admin\AppData\Local\Temp\36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe
"C:\Users\Admin\AppData\Local\Temp\36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bcN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2780

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3480

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Server.exe.log

Filesize
507B

MD5
25d1b50e7c0d451f3d850eb54d27ca05

SHA1
a238807715c70a335f54e80d4855644b21a9e870

SHA256
650faa13e983c9046c9030f63a5fa1c33900432ec7cb3762e015da2e7c5b34a5

SHA512
4223a26b2fabefdf1c01443ccc7bd887464d27f02694379895a040c66db472d541218d501f1c01e1bd31012d079a31baf24e20882c32cf652a09a74e3bf385f5

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

Filesize
43KB

MD5
b1283fbe4ed44ab1d1933fb2976a1aa0

SHA1
c344656fd10baa86224e3da852ffd37293a8882b

SHA256
36c8bb2585ecb14b32a35a62bdb32895515328a9f4768dc4876bad3c9f0666bc

SHA512
4d5972c134d7b148509a7ff6e27edd118377e9647b47ca569fb8244b79fde441b0d3bdd645fd804d1e1fccf3ef4f16658becbf1a29719fc3182283332faeafa5

Download Submit
memory/2304-16-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-3-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/2304-4-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-5-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/2304-2-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/2304-1-0x0000000000A90000-0x0000000000AA2000-memory.dmp

Filesize
72KB

Download
memory/2304-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/2640-17-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2640-20-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2640-21-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2640-22-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/2640-15-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3480-25-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3480-26-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3480-28-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads