njrat | a88ab1054e6a52a003c986f8814fe6936a85cf1416eb1cbc61e955be42c84d05

General

Target

3c0659326c9db90722af36eb71ced388.exe
Size

114KB
MD5

3c0659326c9db90722af36eb71ced388
SHA1

cfa1a1423f456664f02c68c6cc85793a8cb09037
SHA256

a88ab1054e6a52a003c986f8814fe6936a85cf1416eb1cbc61e955be42c84d05
SHA512

4d07566d9daceccd2e78d4fa35415a92b779b7496ef0c2f30adc6e7f68d94ffb6c60f5847ce2b059e393dd114541ef529d96fe067c95dffca5783341b31f60c1
SSDEEP

1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73vrm:w5eznsjsguGDFqGx8egoxmO3rvC

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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
4392	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	3c0659326c9db90722af36eb71ced388.exe

Executes dropped EXE 2 IoCs

pid	Process
3496	chargeable.exe
4928	chargeable.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\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3c0659326c9db90722af36eb71ced388.exe"	3c0659326c9db90722af36eb71ced388.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	3c0659326c9db90722af36eb71ced388.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3496 set thread context of 4928	3496	chargeable.exe	88

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 4 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	3c0659326c9db90722af36eb71ced388.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe
Token: 33	4928	chargeable.exe
Token: SeIncBasePriorityPrivilege	4928	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 3496	1520	3c0659326c9db90722af36eb71ced388.exe	86
PID 1520 wrote to memory of 3496	1520	3c0659326c9db90722af36eb71ced388.exe	86
PID 1520 wrote to memory of 3496	1520	3c0659326c9db90722af36eb71ced388.exe	86
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 3496 wrote to memory of 4928	3496	chargeable.exe	88
PID 4928 wrote to memory of 4392	4928	chargeable.exe	91
PID 4928 wrote to memory of 4392	4928	chargeable.exe	91
PID 4928 wrote to memory of 4392	4928	chargeable.exe	91

C:\Users\Admin\AppData\Local\Temp\3c0659326c9db90722af36eb71ced388.exe
"C:\Users\Admin\AppData\Local\Temp\3c0659326c9db90722af36eb71ced388.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4928
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4392

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
114KB

MD5
d01fd742cd7f8c4cda08bdd83e880316

SHA1
39b616d290155580b5b7dcbbc09377f9a6c78f44

SHA256
a3c15fadf7fb6274d799054e8ab06bbcee0d2528fbcbb221f31821660199c272

SHA512
fb3d210929de333472a3b7ee2208ff24c83e9a1d21c0c61b50cfb883a9c4f2a949f7867d6e28f30610626437d03c229613059f2811409e21ae0eb812aec81456

Download Submit
memory/1520-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

Filesize
4KB

Download
memory/1520-1-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1520-2-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1520-6-0x0000000074C62000-0x0000000074C63000-memory.dmp

Filesize
4KB

Download
memory/1520-7-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1520-20-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3496-19-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3496-22-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3496-21-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3496-28-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4928-23-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4928-27-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4928-29-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4928-30-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4928-31-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads