njrat | e466ea0ac9138262b6459c4a5c473de72ac2fdf6ab6fbff79c332f72a0999c2b

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/04/2024, 21:51

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General

Target
C421FBC9D64569FA513268B0A65BB403.exe
Size 112KB
Sample240406-1qgbmsca41
SHA256 e466ea0ac9138262b6459c4a5c473de72ac2fdf6ab6fbff79c332f72a0999c2b
MD5 c421fbc9d64569fa513268b0a65bb403
SHA1 36a0b26f7d71dda14ed1a8d09c27b9ad174ff0f3
SHA512 bfffa88f914c6e247b82c9a1cba99231cc0c82e5f88d1c7242005c951926e507885ba0c05c64da1e458186b775a7ef41028a2b64f8e6681c4cab7d7b59a391e5
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMx:P5eznsjsguGDFqGZ2rx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence 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
4940	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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	C421FBC9D64569FA513268B0A65BB403.exe

Executes dropped EXE 2 IoCs

pid	Process
2400	chargeable.exe
3448	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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	C421FBC9D64569FA513268B0A65BB403.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\C421FBC9D64569FA513268B0A65BB403.exe"	C421FBC9D64569FA513268B0A65BB403.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2400 set thread context of 3448	2400	chargeable.exe	96

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe
Token: 33	3448	chargeable.exe
Token: SeIncBasePriorityPrivilege	3448	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 2400	3156	C421FBC9D64569FA513268B0A65BB403.exe	93
PID 3156 wrote to memory of 2400	3156	C421FBC9D64569FA513268B0A65BB403.exe	93
PID 3156 wrote to memory of 2400	3156	C421FBC9D64569FA513268B0A65BB403.exe	93
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 2400 wrote to memory of 3448	2400	chargeable.exe	96
PID 3448 wrote to memory of 4940	3448	chargeable.exe	97
PID 3448 wrote to memory of 4940	3448	chargeable.exe	97
PID 3448 wrote to memory of 4940	3448	chargeable.exe	97

C:\Users\Admin\AppData\Local\Temp\C421FBC9D64569FA513268B0A65BB403.exe
"C:\Users\Admin\AppData\Local\Temp\C421FBC9D64569FA513268B0A65BB403.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3156
- 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:2400
- - 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:3448
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:4940

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

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

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 112KB
SHA256 bb5ce04ab99e58cfadac2da55ff24be553e8d700bc7a55ce9ac77a77c9c7a40d
MD5 7548e0a988c9ed990abad176784e562a
SHA1 41badb9d4ffc0232e082972a8f9944a20a525ebc
SHA512 0a7c12c3ee48fc647db57a7469705bb1caeb51e55ab0ebbee5bc9bdb4f0c5ac4a6db2fdd97a1e508058f39bb638f25896e28148a5cc41a05620cdb9915f935e5
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMb:P5eznsjsguGDFqGZ2rb
MD5 SHA1 SHA512 SSDEEP

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memory/2400-26-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/2400-20-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/2400-18-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/2400-19-0x0000000001870000-0x0000000001880000-memory.dmp

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memory/3156-1-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3156-17-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3156-2-0x00000000009B0000-0x00000000009C0000-memory.dmp

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memory/3156-0-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3448-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3448-27-0x0000000000BD0000-0x0000000000BE0000-memory.dmp

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memory/3448-25-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3448-28-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3448-29-0x00000000754B0000-0x0000000075A61000-memory.dmp

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memory/3448-30-0x0000000000BD0000-0x0000000000BE0000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads