njrat | f1938e50b13660c11a8bc40142174c543bb22c4b43fadf722f9ce9b576b3a581

General

Target

JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe
Size

70KB
MD5

a5e85383f702539b5575ff59b9e863af
SHA1

1c97bdfa1acc7f81463a959b949af9bbc0062c50
SHA256

f1938e50b13660c11a8bc40142174c543bb22c4b43fadf722f9ce9b576b3a581
SHA512

6ea0491ba9f5132826437836180219db0cc6a1bbb96b8155ce1fdeeb69e341d1271ab9d54fba4fc79a02bb42851783142a6e0e1e6adee5935ab6e18d18aa10ed
SSDEEP

1536://NH2n/CBhVoBlpn5waQRIcJW0D+79FtQiYuzvGdtepdn:/FWn9n+RBE0D+JQiYuzatep9

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

vaji.duckdns.org:1024

Mutex

6eec61d3321e362343adbc27a7240f18

Attributes

reg_key
6eec61d3321e362343adbc27a7240f18
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
2772	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_a5e85383f702539b5575ff59b9e863af.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6eec61d3321e362343adbc27a7240f18.exe	winlogs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6eec61d3321e362343adbc27a7240f18.exe	winlogs.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	winlogs.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6eec61d3321e362343adbc27a7240f18 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogs.exe\" .."	winlogs.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6eec61d3321e362343adbc27a7240f18 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogs.exe\" .."	winlogs.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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe
Token: 33	4844	winlogs.exe
Token: SeIncBasePriorityPrivilege	4844	winlogs.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 4844	3668	JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe	84
PID 3668 wrote to memory of 4844	3668	JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe	84
PID 3668 wrote to memory of 4844	3668	JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe	84
PID 4844 wrote to memory of 2772	4844	winlogs.exe	93
PID 4844 wrote to memory of 2772	4844	winlogs.exe	93
PID 4844 wrote to memory of 2772	4844	winlogs.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5e85383f702539b5575ff59b9e863af.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Users\Admin\AppData\Roaming\winlogs.exe
  "C:\Users\Admin\AppData\Roaming\winlogs.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winlogs.exe" "winlogs.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2772

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\winlogs.exe

Filesize
70KB

MD5
a5e85383f702539b5575ff59b9e863af

SHA1
1c97bdfa1acc7f81463a959b949af9bbc0062c50

SHA256
f1938e50b13660c11a8bc40142174c543bb22c4b43fadf722f9ce9b576b3a581

SHA512
6ea0491ba9f5132826437836180219db0cc6a1bbb96b8155ce1fdeeb69e341d1271ab9d54fba4fc79a02bb42851783142a6e0e1e6adee5935ab6e18d18aa10ed

Download Submit
memory/3668-6-0x0000000006770000-0x0000000006D14000-memory.dmp

Filesize
5.6MB

Download
memory/3668-20-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3668-3-0x0000000005C90000-0x00000000061BC000-memory.dmp

Filesize
5.2MB

Download
memory/3668-4-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3668-5-0x0000000005680000-0x000000000568C000-memory.dmp

Filesize
48KB

Download
memory/3668-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download
memory/3668-1-0x0000000000D00000-0x0000000000D18000-memory.dmp

Filesize
96KB

Download
memory/3668-2-0x0000000005690000-0x000000000572C000-memory.dmp

Filesize
624KB

Download
memory/4844-19-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4844-21-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4844-23-0x0000000005A90000-0x0000000005B22000-memory.dmp

Filesize
584KB

Download
memory/4844-24-0x0000000005A70000-0x0000000005A7A000-memory.dmp

Filesize
40KB

Download
memory/4844-25-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4844-26-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads