njrat | a5eb97f797fbea357ce38999264e709e0622221cf08a2f677fd1b6f3ee15d7f9

General

Target

f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe
Size

49KB
MD5

f5fb019ecf7570fa904d884db9f05f9c
SHA1

84e28207f86bdbc534dfc8b10520ce61ad202d23
SHA256

a5eb97f797fbea357ce38999264e709e0622221cf08a2f677fd1b6f3ee15d7f9
SHA512

feab45b67572849096c2d380581fdb4fd23312361db7784a7b3bef62a39a3eda055b1b7bf708f448147c915fe832634ea046e7e59162b5dcdc7beeb533be9d4a
SSDEEP

768:o2DXFFhheexEj7I46aOqb3g5W1PeYXjNe2uBYITGuSJ0isjcZy8s/AjpS:tBheexEjd6azCPlKuSJecZZsCS

Score

10^/10

njrat ynhf evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

ynhf

C2

127.0.0.1:5050

Mutex

ab524651e5ce0e49a43154d04c752315

Attributes

reg_key
ab524651e5ce0e49a43154d04c752315
splitter
|'|'|

Signatures

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
4308	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ab524651e5ce0e49a43154d04c752315.exe	turwqr.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ab524651e5ce0e49a43154d04c752315.exe	turwqr.exe

Executes dropped EXE 1 IoCs

pid	Process
3284	turwqr.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab524651e5ce0e49a43154d04c752315 = "\"C:\\Users\\Admin\\AppData\\Roaming\\turwqr.exe\" .."	turwqr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab524651e5ce0e49a43154d04c752315 = "\"C:\\Users\\Admin\\AppData\\Roaming\\turwqr.exe\" .."	turwqr.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	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe
Token: 33	3284	turwqr.exe
Token: SeIncBasePriorityPrivilege	3284	turwqr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 3284	1840	f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe	84
PID 1840 wrote to memory of 3284	1840	f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe	84
PID 3284 wrote to memory of 4308	3284	turwqr.exe	88
PID 3284 wrote to memory of 4308	3284	turwqr.exe	88

C:\Users\Admin\AppData\Local\Temp\f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5fb019ecf7570fa904d884db9f05f9c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Users\Admin\AppData\Roaming\turwqr.exe
  "C:\Users\Admin\AppData\Roaming\turwqr.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3284
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\turwqr.exe" "turwqr.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4308

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\Roaming\turwqr.exe

Filesize
49KB

MD5
f5fb019ecf7570fa904d884db9f05f9c

SHA1
84e28207f86bdbc534dfc8b10520ce61ad202d23

SHA256
a5eb97f797fbea357ce38999264e709e0622221cf08a2f677fd1b6f3ee15d7f9

SHA512
feab45b67572849096c2d380581fdb4fd23312361db7784a7b3bef62a39a3eda055b1b7bf708f448147c915fe832634ea046e7e59162b5dcdc7beeb533be9d4a

Download Submit
memory/1840-6-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/1840-20-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/1840-3-0x0000000001230000-0x000000000123C000-memory.dmp

Filesize
48KB

Download
memory/1840-4-0x000000001B9C0000-0x000000001BA66000-memory.dmp

Filesize
664KB

Download
memory/1840-5-0x000000001BF60000-0x000000001C42E000-memory.dmp

Filesize
4.8MB

Download
memory/1840-0-0x00007FF92DDD5000-0x00007FF92DDD6000-memory.dmp

Filesize
4KB

Download
memory/1840-1-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/1840-2-0x0000000001220000-0x000000000122C000-memory.dmp

Filesize
48KB

Download
memory/3284-19-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/3284-21-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/3284-22-0x00007FF92DB20000-0x00007FF92E4C1000-memory.dmp

Filesize
9.6MB

Download
memory/3284-24-0x000000001BD80000-0x000000001BE1C000-memory.dmp

Filesize
624KB

Download
memory/3284-25-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/3284-26-0x00007FF92DB20000-0x00007FF92E4C1000-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