njrat | 1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/01/2025, 02:11 UTC

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General

Target

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe
Size

120KB
MD5

03a957673a394475e15c113f43e0e99e
SHA1

9da8fb150808ffb7583b509237c59c70ee37f81c
SHA256

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1
SHA512

e6926305fdd18b3e10b768ce749436c4f1c23a9a3aaea02cc33eb058fae1528bc6c57051d658a46996f8d6652abccba0611168be095aa8cd53560992dbd13b94
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLVgS:P5eznsjsguGDFqGZ2rDL3

Score

10^/10

njrat neuf discovery 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 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
2972	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2056	chargeable.exe
2540	chargeable.exe

Loads dropped DLL 2 IoCs

pid	Process
2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe
2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe"	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2056 set thread context of 2540	2056	chargeable.exe	31

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	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.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	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe
Token: 33	2540	chargeable.exe
Token: SeIncBasePriorityPrivilege	2540	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2056	2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe	30
PID 2736 wrote to memory of 2056	2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe	30
PID 2736 wrote to memory of 2056	2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe	30
PID 2736 wrote to memory of 2056	2736	1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe	30
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2056 wrote to memory of 2540	2056	chargeable.exe	31
PID 2540 wrote to memory of 2972	2540	chargeable.exe	32
PID 2540 wrote to memory of 2972	2540	chargeable.exe	32
PID 2540 wrote to memory of 2972	2540	chargeable.exe	32
PID 2540 wrote to memory of 2972	2540	chargeable.exe	32

C:\Users\Admin\AppData\Local\Temp\1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe
"C:\Users\Admin\AppData\Local\Temp\1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2056
- - 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:2540
  - - 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:2972

Network

DNS

crl.microsoft.com

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

Remote address:

8.8.8.8:53

Request

crl.microsoft.com

IN A

Response

crl.microsoft.com

IN CNAME

crl.www.ms.akadns.net

crl.www.ms.akadns.net

IN CNAME

a1363.dscg.akamai.net

a1363.dscg.akamai.net

IN A

23.33.27.99

a1363.dscg.akamai.net

IN A

23.33.27.88
GET

http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

Remote address:

23.33.27.99:80

Request

GET /pki/crl/products/MicRooCerAut2011_2011_03_22.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
If-Modified-Since: Thu, 11 Jul 2024 01:45:51 GMT
User-Agent: Microsoft-CryptoAPI/6.1
Host: crl.microsoft.com

Response

HTTP/1.1 200 OK

Content-Length: 1036
Content-Type: application/octet-stream
Content-MD5: +oTkvMkqpdtzWrUHEQQM3g==
Last-Modified: Thu, 12 Dec 2024 00:06:56 GMT
ETag: 0x8DD1A40E476D877
Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0
x-ms-request-id: eebc2a06-301e-0031-3c35-4cb6f9000000
x-ms-version: 2009-09-19
x-ms-lease-status: unlocked
x-ms-blob-type: BlockBlob
Date: Sun, 05 Jan 2025 02:11:12 GMT
Connection: keep-alive
DNS

www.microsoft.com

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

Remote address:

8.8.8.8:53

Request

www.microsoft.com

IN A

Response

www.microsoft.com

IN CNAME

www.microsoft.com-c-3.edgekey.net

www.microsoft.com-c-3.edgekey.net

IN CNAME

www.microsoft.com-c-3.edgekey.net.globalredir.akadns.net

www.microsoft.com-c-3.edgekey.net.globalredir.akadns.net

IN CNAME

e13678.dscb.akamaiedge.net

e13678.dscb.akamaiedge.net

IN A

2.22.57.219
GET

http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

Remote address:

2.22.57.219:80

Request

GET /pkiops/crl/MicCodSigPCA2011_2011-07-08.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
If-Modified-Since: Sun, 18 Aug 2024 00:23:49 GMT
User-Agent: Microsoft-CryptoAPI/6.1
Host: www.microsoft.com

Response

HTTP/1.1 200 OK

Content-Length: 1078
Content-Type: application/octet-stream
Content-MD5: PjrtHAukbJio72s77Ag5mA==
Last-Modified: Thu, 31 Oct 2024 23:26:09 GMT
ETag: 0x8DCFA0366D6C4CA
x-ms-request-id: f61eb153-f01e-003e-14ee-2bc095000000
x-ms-version: 2009-09-19
x-ms-lease-status: unlocked
x-ms-blob-type: BlockBlob
Date: Sun, 05 Jan 2025 02:11:12 GMT
Connection: keep-alive
TLS_version: UNKNOWN
ms-cv: CASMicrosoftCV1f1d0476.0
ms-cv-esi: CASMicrosoftCV1f1d0476.0
X-RTag: RT
DNS

doddyfire.linkpc.net

chargeable.exe

Remote address:

8.8.8.8:53

Request

doddyfire.linkpc.net

IN A

Response

doddyfire.linkpc.net

IN A

196.119.98.31

23.33.27.99:80

http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl

http

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

497 B
1.6kB
6
3

HTTP Request

GET http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl

HTTP Response

200
2.22.57.219:80

http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl

http

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

439 B
1.7kB
5
4

HTTP Request

GET http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl

HTTP Response

200
196.119.98.31:10000

doddyfire.linkpc.net

chargeable.exe

1.2kB
2.9kB
19
20

8.8.8.8:53

crl.microsoft.com

dns

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

63 B
162 B
1
1

DNS Request

crl.microsoft.com

DNS Response

23.33.27.99

23.33.27.88
8.8.8.8:53

www.microsoft.com

dns

1f8f39067871df0c4f5b3e7dfdf7bf3d70c319ccb78190d5c012f59be946c1e1.exe

63 B
230 B
1
1

DNS Request

www.microsoft.com

DNS Response

2.22.57.219
8.8.8.8:53

doddyfire.linkpc.net

dns

chargeable.exe

66 B
82 B
1
1

DNS Request

doddyfire.linkpc.net

DNS Response

196.119.98.31

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE

Filesize
1KB

MD5
fa84e4bcc92aa5db735ab50711040cde

SHA1
084f1cb4c47fdd3be1c833f58359ec8e16f61eb4

SHA256
6d7205e794fde4219a62d9692ecddf612663a5cf20399e79be87b851fca4ca33

SHA512
261a327ed1dffd4166e215d17bfd867df5b77017ba72c879fb2675cfb8eef48b374f6de41da0e51ba7adb9c0165bb2c831840603e873f6429963afd0cb93007f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C0018BB1B5834735BFA60CD063B31956

Filesize
1KB

MD5
3e3aed1c0ba46c98a8ef6b3bec083998

SHA1
8df2ba67925f2c9580ead34fc567acd35c55b416

SHA256
3fab079f84b987b1a1e305228bd9d2c7dc9a4033b62d3715073c009391fc949f

SHA512
f0afb50c3ca2843e0dde736e5ce6d327ad2b70ae3e04c46c658878208dbd242059efc414f8eff22e9e6034a4a4948b34bdd612c5156c3d9a7fcbd38238066b29

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE

Filesize
264B

MD5
a1171c7ec0417f779dd61ff9cff482db

SHA1
0683fd88bf9721013464652f9101c0b46a31fca4

SHA256
7a0cc49b018f2280defe2f97bd9e886ba4eaac54f36390146683b35c4c22acf0

SHA512
780f9463ee4b08420902683f3bc31823acc064170d14f54c9ece76aa1fb53b858d090239e3ed1daa9eb1bfeb327d8a321f68b69b10c0c6cb79a20a26b6b9808e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
701f7994389289d2a58696d356896560

SHA1
2d14826c13ba76896326e83b032f21c679af06e1

SHA256
051c313bfd36e6724d9e148f55c2324cbb7d13e3890a02ae3f0c5ec3700a3d7f

SHA512
8a63673485c6d3608e08b193c3b1ad291c174fcc79cfa0a4e4bbc154edd67adc08a401b32444b591ac0fa5b1d0294daae0b4d122ceeba375001c5bed16bad587

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5291ef739f9bd6a31cc29744c19c96c9

SHA1
2ed5fee458c383ecf4bae3f849911efe11bf1811

SHA256
82935206bace93eae04e1afe20a8870e140192ca269c6efb90dce99830c03778

SHA512
e8605a9349bec293a62df2610205489a5293b29aa258d2f98dcdfd4f55df7e9e9e946c386d18af74188321d22d9919ed789c1edc897042e7b7c7acf0e5c209e9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
431fcbf21c2ea2f21befcb8ce3e2149b

SHA1
ea300988f5e0f4079708db4444a0a926ed4ba702

SHA256
364388849723a9e65bd03484ffdbf0fcd58c819dda3c5beeee2d66b050ede0d7

SHA512
2bbbf884d85cbca47f9a4f55abfade0c4841400c72b2a87a0848a9a2ba83f9e2c0c2a650d5d6e282a27a7dbe32a32bdaa2b83ec57ed35da8ac2d6179b05715cb

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C0018BB1B5834735BFA60CD063B31956

Filesize
252B

MD5
1eae0c75aca1dc8efb81a77287682679

SHA1
e57c92475a26ccac097da8df4521d620b57ac480

SHA256
3c987119ff17216fdb6452bbd70ae16f0fdacdce28ba8ca97931345edb63eb3e

SHA512
f565c2741128ffe3a080629aa33f503613756e23e6f423e8e8cb80bba8fb83886168629c5094c34b0670a192487501e8e26c786ee3b712596fa0370723a6c5ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF24D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarF250.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

Filesize
120KB

MD5
2b4f14413e1a0832c923f0a746b5d152

SHA1
c4b91a9a104399774f88834b9ba82b26f5d4073c

SHA256
b26207aee85bab3941bac8bb86cc5acd168ddb742737161a9b21b2734ed509c7

SHA512
174e65bcfb409aa753cdf30d419c4b724458b6f76f01768cee4b0bbb54be6e3a9f79f06b9c2dd84b85286a8b9950b0cd8b94be3e071e4a04ff03d4765e12dbfe

Download Submit
memory/2540-351-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2540-354-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2540-353-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2736-183-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2736-0-0x0000000074791000-0x0000000074792000-memory.dmp

Filesize
4KB

Download
memory/2736-1-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download
memory/2736-173-0x0000000074790000-0x0000000074D3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

HTTP Request

HTTP Response

DNS Request

DNS Response

DNS Request

DNS Response

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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