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
1300	netsh.exe

Executes dropped EXE 1 IoCs

Processes:

taskmgr.exe

pid	Process
1728	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-1-5-21-2039016743-699959520-214465309-1000\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	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe
Token: 33	1728	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1728	taskmgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exetaskmgr.exe

description	pid	Process	procid_target
PID 2556 wrote to memory of 1728	2556	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe	31
PID 2556 wrote to memory of 1728	2556	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe	31
PID 2556 wrote to memory of 1728	2556	563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe	31
PID 1728 wrote to memory of 1300	1728	taskmgr.exe	32
PID 1728 wrote to memory of 1300	1728	taskmgr.exe	32
PID 1728 wrote to memory of 1300	1728	taskmgr.exe	32

C:\Users\Admin\AppData\Local\Temp\563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe
"C:\Users\Admin\AppData\Local\Temp\563276feb31bfe2ae44687979ce930c36dd7fb49c6d9b03e1d4ce3da8bbdc9e8N.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2556
- 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:1728
- - 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:1300

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

System Information Discovery

1

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/1728-13-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/1728-11-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/1728-14-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2556-0-0x000007FEF614E000-0x000007FEF614F000-memory.dmp

Filesize
4KB

Download
memory/2556-1-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

Download
memory/2556-2-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2556-3-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2556-12-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads