njrat | 877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f

General

Target

877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe
Size

63KB
MD5

ae36392e5539d5728efa591d610a7515
SHA1

e42833489be55e3a1dcf6856dc34c3311a365f84
SHA256

877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f
SHA512

9a9ffc5f054c1e1e37c6ad56ce9d55a8417dc78d155823821f883279d01c3d20f1a7c1ecf343660588e4fd35f32886fe2dfb9cf71b201f4d9254ecf62eed2257
SSDEEP

1536:4DffgmQMDcjwy/nwDsBzlJTHic7plZBvZ:4DfIm5DcjwDO9lfT

Score

10^/10

njrat defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1916	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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\38c984f8f54bbe3ff7075bf98367f7f9.exe	chrom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\38c984f8f54bbe3ff7075bf98367f7f9.exe	chrom.exe

Executes dropped EXE 1 IoCs

pid	Process
624	chrom.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-1-5-21-2089655958-977706906-1981639424-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\38c984f8f54bbe3ff7075bf98367f7f9 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrom.exe\" .."	chrom.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\38c984f8f54bbe3ff7075bf98367f7f9 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrom.exe\" .."	chrom.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\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\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	877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chrom.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe
Token: 33	624	chrom.exe
Token: SeIncBasePriorityPrivilege	624	chrom.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 624	1456	877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe	95
PID 1456 wrote to memory of 624	1456	877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe	95
PID 1456 wrote to memory of 624	1456	877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe	95
PID 624 wrote to memory of 1916	624	chrom.exe	98
PID 624 wrote to memory of 1916	624	chrom.exe	98
PID 624 wrote to memory of 1916	624	chrom.exe	98

C:\Users\Admin\AppData\Local\Temp\877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe
"C:\Users\Admin\AppData\Local\Temp\877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Roaming\chrom.exe
  "C:\Users\Admin\AppData\Roaming\chrom.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:624
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\chrom.exe" "chrom.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1916

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\chrom.exe

Filesize
63KB

MD5
ae36392e5539d5728efa591d610a7515

SHA1
e42833489be55e3a1dcf6856dc34c3311a365f84

SHA256
877405ad3412491c2f9c19b230abcd35c671e6162bf35084966e63205fe63e7f

SHA512
9a9ffc5f054c1e1e37c6ad56ce9d55a8417dc78d155823821f883279d01c3d20f1a7c1ecf343660588e4fd35f32886fe2dfb9cf71b201f4d9254ecf62eed2257

Download Submit
memory/624-12-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-14-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-16-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-17-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-18-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-19-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/624-20-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1456-0-0x0000000075482000-0x0000000075483000-memory.dmp

Filesize
4KB

Download
memory/1456-1-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1456-2-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1456-13-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads