njrat | 628310cc8dcb88d452fd183e9086f5b57250e5a66efb148b3ac2b4f2964b9e34

General

Target

JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe
Size

48KB
MD5

1463c0cd150148a87d8138d937d75d58
SHA1

face30f9f86b9b186768d7b7a55a94a82baec7c9
SHA256

628310cc8dcb88d452fd183e9086f5b57250e5a66efb148b3ac2b4f2964b9e34
SHA512

ca8096eae148779da1ac28fa0f0fa56c7e291284969967d3c238a1e84a8001b095328fcdb226259b9e79d152250cb3169293f79f75db38e95049738c012d5c85
SSDEEP

768:WrHiR5LwV5PLr3PpMbyS7Ue11ktBFUEZCsfKjfU9:WuRNwV5P/3SbyS7U4inUEZpofy

Score

10^/10

njrat tshfer evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

TSHFER

C2

the-don187.publicvm.com:1177

Mutex

aa3e6870fb514a8fc9560a3458429827

Attributes

reg_key
aa3e6870fb514a8fc9560a3458429827
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
3444	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aa3e6870fb514a8fc9560a3458429827.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aa3e6870fb514a8fc9560a3458429827.exe	Server.exe

Executes dropped EXE 1 IoCs

pid	Process
4812	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aa3e6870fb514a8fc9560a3458429827 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aa3e6870fb514a8fc9560a3458429827 = "\"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

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	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe
Token: 33	4812	Server.exe
Token: SeIncBasePriorityPrivilege	4812	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 4812	1188	JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe	85
PID 1188 wrote to memory of 4812	1188	JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe	85
PID 4812 wrote to memory of 3444	4812	Server.exe	89
PID 4812 wrote to memory of 3444	4812	Server.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1463c0cd150148a87d8138d937d75d58.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4812
- - 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:3444

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\Server.exe

Filesize
48KB

MD5
1463c0cd150148a87d8138d937d75d58

SHA1
face30f9f86b9b186768d7b7a55a94a82baec7c9

SHA256
628310cc8dcb88d452fd183e9086f5b57250e5a66efb148b3ac2b4f2964b9e34

SHA512
ca8096eae148779da1ac28fa0f0fa56c7e291284969967d3c238a1e84a8001b095328fcdb226259b9e79d152250cb3169293f79f75db38e95049738c012d5c85

Download Submit
memory/1188-1-0x00007FFEF1340000-0x00007FFEF1CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1188-3-0x000000001BE50000-0x000000001BEF6000-memory.dmp

Filesize
664KB

Download
memory/1188-0-0x00007FFEF15F5000-0x00007FFEF15F6000-memory.dmp

Filesize
4KB

Download
memory/1188-4-0x000000001C3D0000-0x000000001C89E000-memory.dmp

Filesize
4.8MB

Download
memory/1188-5-0x00007FFEF1340000-0x00007FFEF1CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1188-2-0x000000001BD80000-0x000000001BD8C000-memory.dmp

Filesize
48KB

Download
memory/1188-19-0x00007FFEF1340000-0x00007FFEF1CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4812-18-0x00007FFEF1340000-0x00007FFEF1CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4812-20-0x00007FFEF1340000-0x00007FFEF1CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4812-22-0x000000001C340000-0x000000001C3DC000-memory.dmp

Filesize
624KB

Download
memory/4812-23-0x0000000000F50000-0x0000000000F58000-memory.dmp

Filesize
32KB

Download
memory/4812-24-0x00007FFEF1340000-0x00007FFEF1CE1000-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