njrat | ac892ca4e1010c7367a04386f65dcc17d523bc78c7cded3b4eb1f09770ee2407

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2024, 01:14

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General

Target
638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe
Size 116KB
Sample240720-blv7katbkg
SHA256 638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48
MD5 3f67a33d1721779603119007560f8c05
SHA1 8079ed8c8092f8636cb2e32ab34fe4197d1f1909
SHA512 70d831b01a8396a3fab722ffea8544ef92eae9308238663014b1fb8c7cd73530922f929fda812807434b6de4ee867ff8c4c1fab0e571765ebc6874d199a8e417
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMIc:P5eznsjsguGDFqGZ2rIc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
splitter
|'|'|

Signatures

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
4064	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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe

Executes dropped EXE 2 IoCs

pid	Process
1228	chargeable.exe
2276	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-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe"	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1228 set thread context of 2276	1228	chargeable.exe	95

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

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe
Token: 33	2276	chargeable.exe
Token: SeIncBasePriorityPrivilege	2276	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 1228	1932	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe	92
PID 1932 wrote to memory of 1228	1932	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe	92
PID 1932 wrote to memory of 1228	1932	638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe	92
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 1228 wrote to memory of 2276	1228	chargeable.exe	95
PID 2276 wrote to memory of 4064	2276	chargeable.exe	96
PID 2276 wrote to memory of 4064	2276	chargeable.exe	96
PID 2276 wrote to memory of 4064	2276	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe
"C:\Users\Admin\AppData\Local\Temp\638d35e3c7c522b0c39180ed16612c3e182b96b57486e59123295f38e9bbbb48.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2276
  - - 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
      PID:4064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 116KB
SHA256 ef70522272ea888ebc1803b6821598b27a5b279d192abc53d106c9361184a2a3
MD5 c41be261fbfedacdec3d6bbbd72218b5
SHA1 fb5f88c2489cbdf2d38f1e885cb256d05f60088e
SHA512 8efc0df24c678f15e3d94b9d7a6f143f3005c009f991cc7d88d821a5fa1471f9344bd1596f909c94e1227bc1c85ee912c34ecc9d34f2b926e08fb59086049fd2
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMIa:P5eznsjsguGDFqGZ2rIa
MD5 SHA1 SHA512 SSDEEP

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memory/1228-18-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/1228-19-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/1228-24-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/1932-2-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/1932-0-0x0000000075432000-0x0000000075433000-memory.dmp

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memory/1932-17-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/1932-1-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/2276-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2276-25-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/2276-27-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/2276-26-0x0000000075430000-0x00000000759E1000-memory.dmp

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memory/2276-28-0x0000000075430000-0x00000000759E1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads