njrat | f30ea4f9504e4541a9fc609e7bb5283b8573adc002beac7c93b3d58d40896e2c

General

Target

JaffaCakes118_777676310c24701745eafe775dfba946.exe
Size

24KB
MD5

777676310c24701745eafe775dfba946
SHA1

d7f8d08ddec2d0bb383e18fcc7644f2a851ac5a4
SHA256

f30ea4f9504e4541a9fc609e7bb5283b8573adc002beac7c93b3d58d40896e2c
SHA512

ee127c8764b33d21064433b0cd306e6c7f1e0d8e6b27b780387a8c4ed8687744e4b21f12706d563d55652cb56bea1737e5f7e1d4ead2019516f2de8c665a910b
SSDEEP

384:oz/fEn+pvhlY15Mkatlxrgzr6G6ukCZCKp6SpaZAlt4bMc46x1:8/MnoYYniz76pCZCKkgZtML

Score

10^/10

njrat ‎cstrike evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

‎cstrike

C2

confirmation.myvnc.com:5552

Mutex

ab890c57cf665b000366dd0ec25c1186

Attributes

reg_key
ab890c57cf665b000366dd0ec25c1186
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

pid	Process
2088	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_777676310c24701745eafe775dfba946.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	system.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab890c57cf665b000366dd0ec25c1186 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab890c57cf665b000366dd0ec25c1186 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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\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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe
Token: 33	3956	system.exe
Token: SeIncBasePriorityPrivilege	3956	system.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3956	3940	JaffaCakes118_777676310c24701745eafe775dfba946.exe	84
PID 3940 wrote to memory of 3956	3940	JaffaCakes118_777676310c24701745eafe775dfba946.exe	84
PID 3956 wrote to memory of 2088	3956	system.exe	86
PID 3956 wrote to memory of 2088	3956	system.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_777676310c24701745eafe775dfba946.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_777676310c24701745eafe775dfba946.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2088

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\system.exe

Filesize
24KB

MD5
777676310c24701745eafe775dfba946

SHA1
d7f8d08ddec2d0bb383e18fcc7644f2a851ac5a4

SHA256
f30ea4f9504e4541a9fc609e7bb5283b8573adc002beac7c93b3d58d40896e2c

SHA512
ee127c8764b33d21064433b0cd306e6c7f1e0d8e6b27b780387a8c4ed8687744e4b21f12706d563d55652cb56bea1737e5f7e1d4ead2019516f2de8c665a910b

Download Submit
memory/3940-1-0x0000000000010000-0x000000000001C000-memory.dmp

Filesize
48KB

Download
memory/3940-0-0x00007FFAC29D3000-0x00007FFAC29D5000-memory.dmp

Filesize
8KB

Download
memory/3940-2-0x00000000006F0000-0x00000000006F8000-memory.dmp

Filesize
32KB

Download
memory/3940-3-0x0000000000700000-0x000000000070C000-memory.dmp

Filesize
48KB

Download
memory/3940-4-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download
memory/3940-17-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download
memory/3956-18-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download
memory/3956-19-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download
memory/3956-20-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download
memory/3956-21-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads