njrat | bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001

General

Target

bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe
Size

23KB
MD5

cce37348cac160de3f94558fd354da00
SHA1

9ea89e03fc299c9f58caf62974b91a24b8947b23
SHA256

bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001
SHA512

9a06333590667e6b6e8e711dd07b429b37a246a56117b86c1584d1ad2f083d560618e527bf53e3ed3ab48005156fd7cc0010cc10ebe899eb6bfaaa8cb119c5c5
SSDEEP

384:BY324bcgPiJLQrfARGSRUJsbY6ZgvSMBD3t8mRvR6JZlbw8hqIusZzZGs:2L2s+tRyRpcnuU

Score

10^/10

njrat discovery 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
1048	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fd4759c8338155e10068a729e4ccb2ba.exe	adobe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fd4759c8338155e10068a729e4ccb2ba.exe	adobe.exe

Executes dropped EXE 1 IoCs

pid	Process
1076	adobe.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fd4759c8338155e10068a729e4ccb2ba = "\"C:\\Users\\Admin\\AppData\\Roaming\\adobe.exe\" .."	adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fd4759c8338155e10068a729e4ccb2ba = "\"C:\\Users\\Admin\\AppData\\Roaming\\adobe.exe\" .."	adobe.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
15	0.tcp.sa.ngrok.io
46	0.tcp.sa.ngrok.io

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	bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe
Token: 33	1076	adobe.exe
Token: SeIncBasePriorityPrivilege	1076	adobe.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 1076	3276	bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe	83
PID 3276 wrote to memory of 1076	3276	bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe	83
PID 3276 wrote to memory of 1076	3276	bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe	83
PID 1076 wrote to memory of 1048	1076	adobe.exe	93
PID 1076 wrote to memory of 1048	1076	adobe.exe	93
PID 1076 wrote to memory of 1048	1076	adobe.exe	93

C:\Users\Admin\AppData\Local\Temp\bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe
"C:\Users\Admin\AppData\Local\Temp\bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Users\Admin\AppData\Roaming\adobe.exe
  "C:\Users\Admin\AppData\Roaming\adobe.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:1076
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\adobe.exe" "adobe.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1048

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
23KB

MD5
cce37348cac160de3f94558fd354da00

SHA1
9ea89e03fc299c9f58caf62974b91a24b8947b23

SHA256
bc61e32a987530c2c6e535a9ab237991af141a1c2efffbd9b07aa91639ea7001

SHA512
9a06333590667e6b6e8e711dd07b429b37a246a56117b86c1584d1ad2f083d560618e527bf53e3ed3ab48005156fd7cc0010cc10ebe899eb6bfaaa8cb119c5c5

Download Submit
memory/1076-12-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/1076-15-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3276-0-0x0000000074B72000-0x0000000074B73000-memory.dmp

Filesize
4KB

Download
memory/3276-1-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3276-2-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3276-13-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads