njrat | 0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ff

General

Target

0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe
Size

47KB
MD5

261d969551de53862f0a8ad5fab060f0
SHA1

8bc83f684f9b2d9a6829c1b4bb15a401691137ec
SHA256

0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ff
SHA512

5307376614114af8c78c9893dcbac9363cb2ffdf9ae85a0effb3312fc2ad857e7297be2bccdda19ef2c2dd18d509063245bc51938d3824d10b562e4b658f2601
SSDEEP

768:ygocmpxHVcaJ6la5VF09BL7Uxr/eqN6RBDCKuySvOL+/DikeKX+XgEwIQlLwFJ:ygocmpxHRJCa5MHnBmvySv3/OiOgPIQy

Score

10^/10

njrat gam defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Gam

C2

refuseniks.no-ip.biz:5552

Mutex

ce3fa120996d42fd622204472e84c005

Attributes

reg_key
ce3fa120996d42fd622204472e84c005
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3704	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	498.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ce3fa120996d42fd622204472e84c005.exe	Gam.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ce3fa120996d42fd622204472e84c005.exe	Gam.exe

Executes dropped EXE 2 IoCs

pid	Process
652	498.exe
4296	Gam.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-1-5-21-1412605595-2147700071-3468511006-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ce3fa120996d42fd622204472e84c005 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Gam.exe\" .."	Gam.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ce3fa120996d42fd622204472e84c005 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Gam.exe\" .."	Gam.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	498.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gam.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe
Token: 33	4296	Gam.exe
Token: SeIncBasePriorityPrivilege	4296	Gam.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 652	1268	0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe	84
PID 1268 wrote to memory of 652	1268	0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe	84
PID 1268 wrote to memory of 652	1268	0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe	84
PID 652 wrote to memory of 4296	652	498.exe	92
PID 652 wrote to memory of 4296	652	498.exe	92
PID 652 wrote to memory of 4296	652	498.exe	92
PID 4296 wrote to memory of 3704	4296	Gam.exe	93
PID 4296 wrote to memory of 3704	4296	Gam.exe	93
PID 4296 wrote to memory of 3704	4296	Gam.exe	93

C:\Users\Admin\AppData\Local\Temp\0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe
"C:\Users\Admin\AppData\Local\Temp\0a0b990cd09d159a9561f43bd65b26fd1db070703d00d08f431f4071e18554ffN.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\498.exe
  C:\Users\Admin\AppData\Local\Temp\498.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:652
- - C:\Users\Admin\AppData\Local\Temp\Gam.exe
    "C:\Users\Admin\AppData\Local\Temp\Gam.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4296
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Gam.exe" "Gam.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:3704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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\Temp\498.exe

Filesize
23KB

MD5
167179dcb6bc88ad33241f07048dad82

SHA1
9d23cec6e27ec3608130d19144498337864f5569

SHA256
1497b4cadd05f9514f8b9538b76df0f42dca0198d8550add887032e0e8180917

SHA512
c9a1f3cd6716bbdb90322ff0d179de2661770d573fb346a3be1ba32f1dbad5265b4fdd5876b5fd1d2490c4b80f28e2ce70951f98470817aeeab64b7a59deee09

Download Submit
memory/652-27-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/652-13-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/652-12-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/652-11-0x0000000075232000-0x0000000075233000-memory.dmp

Filesize
4KB

Download
memory/1268-5-0x0000000000970000-0x0000000000988000-memory.dmp

Filesize
96KB

Download
memory/1268-3-0x0000000000950000-0x0000000000960000-memory.dmp

Filesize
64KB

Download
memory/1268-9-0x00007FFC8A130000-0x00007FFC8ABF1000-memory.dmp

Filesize
10.8MB

Download
memory/1268-0-0x00007FFC8A133000-0x00007FFC8A135000-memory.dmp

Filesize
8KB

Download
memory/1268-4-0x0000000000960000-0x0000000000970000-memory.dmp

Filesize
64KB

Download
memory/1268-2-0x0000000000940000-0x000000000094E000-memory.dmp

Filesize
56KB

Download
memory/1268-20-0x00007FFC8A130000-0x00007FFC8ABF1000-memory.dmp

Filesize
10.8MB

Download
memory/1268-1-0x0000000000160000-0x0000000000172000-memory.dmp

Filesize
72KB

Download
memory/4296-25-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-28-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-26-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-30-0x0000000075230000-0x00000000757E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads