njrat | 585de753d93fcfd637af3d7c9814bd9dd42f733d3167a25f420bed3f075cf0f7

General

Target

1.exe
Size

55KB
MD5

ac8733a16862797fe27d86a080a46cce
SHA1

4884cd013329a1b434f2ec8906223ef96b89d00c
SHA256

585de753d93fcfd637af3d7c9814bd9dd42f733d3167a25f420bed3f075cf0f7
SHA512

a142f852fcb4cc7067738e71df8e286060888142cc2924f006c2a9e8d154998c6f171a94ba89355847641375307d0562087e486819defb679ecb2b0fe533671c
SSDEEP

768:ZVbHFOt1MankGn2NsW6ingB3wkkSNOmwFvfu0YMDHPsAL7XJSxI3pmwm:ZVZcDn4NsRinqtDDwsNMD3XExI3pmwm

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	1.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11ebedf6aaa70ff2ab1151cb697977f2.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11ebedf6aaa70ff2ab1151cb697977f2.exe	dllhost.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	dllhost.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\11ebedf6aaa70ff2ab1151cb697977f2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\11ebedf6aaa70ff2ab1151cb697977f2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe
Token: 33	3892	dllhost.exe
Token: SeIncBasePriorityPrivilege	3892	dllhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 3892	3096	1.exe	84
PID 3096 wrote to memory of 3892	3096	1.exe	84
PID 3096 wrote to memory of 3892	3096	1.exe	84

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3096
- C:\Users\Admin\AppData\Local\Temp\dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3892

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\dllhost.exe

Filesize
55KB

MD5
ac8733a16862797fe27d86a080a46cce

SHA1
4884cd013329a1b434f2ec8906223ef96b89d00c

SHA256
585de753d93fcfd637af3d7c9814bd9dd42f733d3167a25f420bed3f075cf0f7

SHA512
a142f852fcb4cc7067738e71df8e286060888142cc2924f006c2a9e8d154998c6f171a94ba89355847641375307d0562087e486819defb679ecb2b0fe533671c

Download Submit
memory/3096-0-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/3096-1-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3096-2-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3096-13-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3892-12-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3892-14-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3892-16-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads