njrat | f2b2bea81b451c8d2c1d4044ef75ac9da40ae52ff9f6c0787722708f23ea61ce

General

Target

fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe
Size

88KB
MD5

fe79bc594f52ebbec3f8f17d7a15bad7
SHA1

7562533b194a1067eba8851d29b83292f7e4cfc0
SHA256

f2b2bea81b451c8d2c1d4044ef75ac9da40ae52ff9f6c0787722708f23ea61ce
SHA512

5342ca122862210b87affe6f803222d34309d748b9aa2d3a857bceaaa36acce6ccd13402a68ab8df8b2742cf9f2abd0a53723a348cf5f44b97d0256e246d1af2
SSDEEP

1536:Rlt5szhi7nExYxQKGVMcjiK7xox7cJNutA4S1M7yaRe2BclNc:Yhiib2ANc

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

qwertyuiop45678.hopto.org:5554

Mutex

833e3978e131a7641e44155f11f4c918

Attributes

reg_key
833e3978e131a7641e44155f11f4c918
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

Processes:

netsh.exe

pid process

2996 netsh.exe

pid	process
2996	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:

fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2904 server.exe

pid	process
2904	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\833e3978e131a7641e44155f11f4c918 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\833e3978e131a7641e44155f11f4c918 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe
Token: 33	2904	server.exe
Token: SeIncBasePriorityPrivilege	2904	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exeserver.exe

description	pid	process	target process
PID 4568 wrote to memory of 2904	4568	fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe	server.exe
PID 4568 wrote to memory of 2904	4568	fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe	server.exe
PID 2904 wrote to memory of 2996	2904	server.exe	netsh.exe
PID 2904 wrote to memory of 2996	2904	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe79bc594f52ebbec3f8f17d7a15bad7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4568

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:2904

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:2996

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
88KB

MD5
fe79bc594f52ebbec3f8f17d7a15bad7

SHA1
7562533b194a1067eba8851d29b83292f7e4cfc0

SHA256
f2b2bea81b451c8d2c1d4044ef75ac9da40ae52ff9f6c0787722708f23ea61ce

SHA512
5342ca122862210b87affe6f803222d34309d748b9aa2d3a857bceaaa36acce6ccd13402a68ab8df8b2742cf9f2abd0a53723a348cf5f44b97d0256e246d1af2

Download Submit
memory/2904-20-0x0000000001130000-0x0000000001140000-memory.dmp

Filesize
64KB

Download
memory/2904-22-0x000000001BE90000-0x000000001BF2C000-memory.dmp

Filesize
624KB

Download
memory/2904-25-0x0000000001130000-0x0000000001140000-memory.dmp

Filesize
64KB

Download
memory/2904-24-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/2904-23-0x00000000015B0000-0x00000000015B8000-memory.dmp

Filesize
32KB

Download
memory/2904-21-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/2904-19-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/4568-18-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/4568-0-0x000000001BCF0000-0x000000001BD96000-memory.dmp

Filesize
664KB

Download
memory/4568-1-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/4568-2-0x00007FF86EF50000-0x00007FF86F8F1000-memory.dmp

Filesize
9.6MB

Download
memory/4568-5-0x000000001CA10000-0x000000001CEDE000-memory.dmp

Filesize
4.8MB

Download
memory/4568-4-0x00000000016C0000-0x00000000016CC000-memory.dmp

Filesize
48KB

Download
memory/4568-3-0x0000000001530000-0x0000000001540000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads