njrat | 563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8

General

Target

563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe
Size

100KB
MD5

db6cfa38032e1c194f98b7fa9ef561f0
SHA1

3312632cec959450b8fd0fd19572c51ea60ed602
SHA256

563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8
SHA512

3952afcac094297f0b49e0753d0a5432c060352a36e17181e7f01f68ab17af7bd2bc62885416478b9966c2442b37c17b0c0ac37aa97a4b499e8fef504777f15a
SSDEEP

1536:JMoIfhO5PNZ4BkSQB68QJRlrNw+ZnIwk0+Be4X2EWpD7oi1VO+/t6F:+o2GNZMI8Rl5wyIwk79/sl8F

Score

10^/10

njrat victime2014b evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

VICTIME2014b

C2

crazymaha.zapto.org:8181

Mutex

73fc908b8a1feca480a20b452ef82fcc

Attributes

reg_key
73fc908b8a1feca480a20b452ef82fcc
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

netsh.exe

pid	Process
1788	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:

563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe

Executes dropped EXE 1 IoCs

Processes:

taskmgr.exe

pid	Process
1576	taskmgr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

taskmgr.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\73fc908b8a1feca480a20b452ef82fcc = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmgr.exe\" .."	taskmgr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\73fc908b8a1feca480a20b452ef82fcc = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\taskmgr.exe\" .."	taskmgr.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

Processes:

netsh.exe

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

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

taskmgr.exe

description	pid	Process
Token: SeDebugPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe
Token: 33	1576	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1576	taskmgr.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exetaskmgr.exe

description	pid	Process	procid_target
PID 3172 wrote to memory of 1576	3172	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe	82
PID 3172 wrote to memory of 1576	3172	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe	82
PID 1576 wrote to memory of 1788	1576	taskmgr.exe	87
PID 1576 wrote to memory of 1788	1576	taskmgr.exe	87

C:\Users\Admin\AppData\Local\Temp\563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe
"C:\Users\Admin\AppData\Local\Temp\563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Users\Admin\AppData\Local\Temp\taskmgr.exe
  "C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1576
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\taskmgr.exe" "taskmgr.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:1788

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\taskmgr.exe

Filesize
100KB

MD5
db6cfa38032e1c194f98b7fa9ef561f0

SHA1
3312632cec959450b8fd0fd19572c51ea60ed602

SHA256
563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8

SHA512
3952afcac094297f0b49e0753d0a5432c060352a36e17181e7f01f68ab17af7bd2bc62885416478b9966c2442b37c17b0c0ac37aa97a4b499e8fef504777f15a

Download Submit
memory/1576-20-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/1576-19-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/1576-21-0x000000001C5F0000-0x000000001C68C000-memory.dmp

Filesize
624KB

Download
memory/1576-22-0x00000000011C0000-0x00000000011C8000-memory.dmp

Filesize
32KB

Download
memory/1576-23-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/3172-2-0x0000000000830000-0x000000000083C000-memory.dmp

Filesize
48KB

Download
memory/3172-3-0x000000001B150000-0x000000001B1F6000-memory.dmp

Filesize
664KB

Download
memory/3172-4-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/3172-5-0x000000001B6D0000-0x000000001BB9E000-memory.dmp

Filesize
4.8MB

Download
memory/3172-1-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/3172-18-0x00007FFB99E30000-0x00007FFB9A7D1000-memory.dmp

Filesize
9.6MB

Download
memory/3172-0-0x00007FFB9A0E5000-0x00007FFB9A0E6000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads