njrat | 65f628e78ca5d7cc1a094a2baa3a3cc5a24e0f680e40a34ee482df42e7d0e005

Analysis

max time kernel
154s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 15:01

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General

Target
251d896631821a9966efd21220a9572b.exe
Size 114KB
Sample240511-sdwa2acf4x
SHA256 65f628e78ca5d7cc1a094a2baa3a3cc5a24e0f680e40a34ee482df42e7d0e005
MD5 251d896631821a9966efd21220a9572b
SHA1 b06b8e324b435de34377f3aee96da12de544cadc
SHA512 6b542ff39ff3e5c604d060c2733cd3cecbfa1f92791072f9ca705b720afbfa48a50accf0d97326ead613e63dd62cc1a3a38c3525a80e6a52bbe9aa20a9aecf61
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMiat6s:P5eznsjsguGDFqGZ2ris
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
4856	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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	251d896631821a9966efd21220a9572b.exe

Executes dropped EXE 2 IoCs

pid	Process
4952	chargeable.exe
556	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	251d896631821a9966efd21220a9572b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\251d896631821a9966efd21220a9572b.exe"	251d896631821a9966efd21220a9572b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4952 set thread context of 556	4952	chargeable.exe	100

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe
Token: 33	556	chargeable.exe
Token: SeIncBasePriorityPrivilege	556	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4952	4756	251d896631821a9966efd21220a9572b.exe	94
PID 4756 wrote to memory of 4952	4756	251d896631821a9966efd21220a9572b.exe	94
PID 4756 wrote to memory of 4952	4756	251d896631821a9966efd21220a9572b.exe	94
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 4952 wrote to memory of 556	4952	chargeable.exe	100
PID 556 wrote to memory of 4856	556	chargeable.exe	103
PID 556 wrote to memory of 4856	556	chargeable.exe	103
PID 556 wrote to memory of 4856	556	chargeable.exe	103

C:\Users\Admin\AppData\Local\Temp\251d896631821a9966efd21220a9572b.exe
"C:\Users\Admin\AppData\Local\Temp\251d896631821a9966efd21220a9572b.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4756
- 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:4952
- - 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:556
  - - 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:4856

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1344 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:4484

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 114KB
SHA256 9cc467aa1b24ed4726800957a3eab38dd5d36aa49bf79d6f53c1ee04215d5298
MD5 754d349cf53af2f1f9a441e890ea0b8a
SHA1 a69aa115ea84f8dd0c0e8455e83c04c765881661
SHA512 92784d4e351c0d2897a64a295d3e24375c4901aa37161e2e37a6b3cdfff5c4e76ece631b9d554e49ff0c34b52b5aa2e3b1c49438aea5f0c9c21b6a9567a4cb3d
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMiat6b:P5eznsjsguGDFqGZ2rib
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/556-23-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/556-31-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/556-30-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/556-29-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/556-28-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4756-7-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4756-22-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4756-19-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4756-0-0x00000000746D2000-0x00000000746D3000-memory.dmp

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memory/4756-6-0x00000000746D2000-0x00000000746D3000-memory.dmp

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memory/4756-2-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4756-1-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4952-21-0x00000000746D0000-0x0000000074C81000-memory.dmp

Download

memory/4952-20-0x00000000746D0000-0x0000000074C81000-memory.dmp

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memory/4952-27-0x00000000746D0000-0x0000000074C81000-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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