njrat | 375508e2c587538b0b35bcc7fbca261f1ebe6940a3547470e5e77123b23d90eb

General

Target

JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe
Size

326KB
MD5

64396eb9d6779efba3271a98348a2dc0
SHA1

79c15cf74535b3e2af88049ea59be76f772c5e27
SHA256

375508e2c587538b0b35bcc7fbca261f1ebe6940a3547470e5e77123b23d90eb
SHA512

f9ff3afde02b4f6c7bff0a37e16c72bfdbb9933bf1f3a1538c1f376d964239d4b78c89c642c5e423c6cd10e321202fc60983e2c8a9f0dd8dc918ca97dcc746cd
SSDEEP

6144:MKxRx+ulkUUnAnx2+sUkQpdo40y3jia7v4rV3KjVR2i1/Y9CltSrB85Omd:xZjKAx2okQpe4nzylKn2i1w9C3

Score

10^/10

njrat evasion persistence privilege_escalation trojan

Malware Config

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
2244	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
776	server.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\ca5c0b0aed14af84044f41d3571d046d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ca5c0b0aed14af84044f41d3571d046d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\security.config.cch.new	JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\enterprisesec.config.cch.new	JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.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	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe
Token: 33	776	server.exe
Token: SeIncBasePriorityPrivilege	776	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 776	3044	JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe	30
PID 3044 wrote to memory of 776	3044	JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe	30
PID 3044 wrote to memory of 776	3044	JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe	30
PID 776 wrote to memory of 2244	776	server.exe	32
PID 776 wrote to memory of 2244	776	server.exe	32
PID 776 wrote to memory of 2244	776	server.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64396eb9d6779efba3271a98348a2dc0.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2244

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\server.exe

Filesize
326KB

MD5
64396eb9d6779efba3271a98348a2dc0

SHA1
79c15cf74535b3e2af88049ea59be76f772c5e27

SHA256
375508e2c587538b0b35bcc7fbca261f1ebe6940a3547470e5e77123b23d90eb

SHA512
f9ff3afde02b4f6c7bff0a37e16c72bfdbb9933bf1f3a1538c1f376d964239d4b78c89c642c5e423c6cd10e321202fc60983e2c8a9f0dd8dc918ca97dcc746cd

Download Submit
memory/776-12-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/776-15-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/776-20-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/776-21-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/3044-1-0x000007FEF5BBE000-0x000007FEF5BBF000-memory.dmp

Filesize
4KB

Download
memory/3044-0-0x0000000002110000-0x000000000214E000-memory.dmp

Filesize
248KB

Download
memory/3044-2-0x0000000002150000-0x0000000002190000-memory.dmp

Filesize
256KB

Download
memory/3044-3-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/3044-4-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/3044-16-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download
memory/3044-19-0x000007FEF5900000-0x000007FEF629D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads