njrat | 0101605928448cc2af7c21ce1f0e701989816fd83c7dc233ca43516427ed8ab7

General

Target

service.exe
Size

48KB
MD5

98747f5b8125fdbd59f050e30618867f
SHA1

19adbbc70a56d1cefc2f8c60a139e0540affe661
SHA256

0101605928448cc2af7c21ce1f0e701989816fd83c7dc233ca43516427ed8ab7
SHA512

f1356242dd9f56d3606ca3707d1cfddc7bba90cdcd902cc2400255ab63c4608986d249520a7f4c330b11c4b428dbb2468406b7e2b455611c03e8c8dfac6e9aca
SSDEEP

768:tzudimXcTHesAM68IwLXxIICnUErFjeiR5C2w5zP0AMj0OLDKTM/vO0AURXSO:d8LzmBpkrdaJ0Ak5fKY/rfSO

Score

10^/10

njrat prothv2 discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

PROTHV2

C2

103.253.73.222:711

Mutex

bc537b56da07a3b4870ad823ad802a4a

Attributes

reg_key
bc537b56da07a3b4870ad823ad802a4a
splitter
Y262SUCZ4UJJ

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
3240	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bc537b56da07a3b4870ad823ad802a4a.exe	service.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bc537b56da07a3b4870ad823ad802a4a.exe	service.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bc537b56da07a3b4870ad823ad802a4a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\service.exe\" .."	service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bc537b56da07a3b4870ad823ad802a4a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\service.exe\" .."	service.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 2224	2848	service.exe	89

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

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe
Token: 33	2224	service.exe
Token: SeIncBasePriorityPrivilege	2224	service.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2848 wrote to memory of 2224	2848	service.exe	89
PID 2224 wrote to memory of 3240	2224	service.exe	91
PID 2224 wrote to memory of 3240	2224	service.exe	91
PID 2224 wrote to memory of 3240	2224	service.exe	91

C:\Users\Admin\AppData\Local\Temp\service.exe
"C:\Users\Admin\AppData\Local\Temp\service.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\service.exe
  "C:\Users\Admin\AppData\Local\Temp\service.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\service.exe" "service.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3240

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

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\service.exe.log

Filesize
1KB

MD5
b5291f3dcf2c13784e09a057f2e43d13

SHA1
fbb72f4b04269e0d35b1d9c29d02d63dbc7ad07e

SHA256
ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce

SHA512
11c89caac425bccaa24e2bb24c6f2b4e6d6863278bf8a5304a42bb44475b08ca586e09143e7d5b14db7f1cd9adacd5358769e0d999dc348073431031067bd4d4

Download Submit
memory/2224-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2224-20-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2224-19-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2224-18-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2224-16-0x0000000004D50000-0x0000000004DEC000-memory.dmp

Filesize
624KB

Download
memory/2224-14-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2848-4-0x0000000004B10000-0x0000000004B1A000-memory.dmp

Filesize
40KB

Download
memory/2848-8-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2848-9-0x0000000004B00000-0x0000000004B10000-memory.dmp

Filesize
64KB

Download
memory/2848-10-0x0000000004D80000-0x0000000004D9E000-memory.dmp

Filesize
120KB

Download
memory/2848-7-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/2848-6-0x0000000004D00000-0x0000000004D76000-memory.dmp

Filesize
472KB

Download
memory/2848-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2848-15-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2848-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/2848-3-0x0000000004A50000-0x0000000004AE2000-memory.dmp

Filesize
584KB

Download
memory/2848-2-0x00000000050F0000-0x0000000005694000-memory.dmp

Filesize
5.6MB

Download
memory/2848-1-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads