njrat | d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525

Analysis

max time kernel
151s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-10-2022 01:57

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General

Target

d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe
Size

576KB
MD5

371a9e97a6c1a198db1735eadd2ddde0
SHA1

3fc4f4b63e43d9219168ff80855242c68c8308c4
SHA256

d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525
SHA512

f717b3c86a659921cb0a64144928f41cf975f0510a43bf4f416cf24a1d57926e77fd7244fb684ace2f8af3f9ca59646de7bbba8b7b2647d37943703a5e6a1a97
SSDEEP

12288:o1NbHByjm6KffQjrkQR8Lx1ahP+dmyyGlcWH:sbHgjmYj4QSLLaN+dmyyGL

Score

10^/10

njrat szwaby evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Szwaby

scamher.chickenkiller.com:55554

Mutex

0391c958660a9aa52aecefa0d373bda0

Attributes

reg_key
0391c958660a9aa52aecefa0d373bda0
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

FINAL.exeK7C.exeUpdater.exe

pid process

2024 FINAL.exe
952 K7C.exe
272 Updater.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1020 netsh.exe

pid	process
2024	FINAL.exe
952	K7C.exe
272	Updater.exe

pid	process
1020	netsh.exe

Drops startup file 2 IoCs

Processes:

Updater.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0391c958660a9aa52aecefa0d373bda0.exe	Updater.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0391c958660a9aa52aecefa0d373bda0.exe	Updater.exe

Loads dropped DLL 4 IoCs

Processes:

d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exeFINAL.exe

pid	process
1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe
1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe
1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe
2024	FINAL.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Updater.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\0391c958660a9aa52aecefa0d373bda0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Updater.exe\" .."	Updater.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0391c958660a9aa52aecefa0d373bda0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Updater.exe\" .."	Updater.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

K7C.exe

pid	process
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe
952	K7C.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

Updater.exe

description	pid	process
Token: SeDebugPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe
Token: 33	272	Updater.exe
Token: SeIncBasePriorityPrivilege	272	Updater.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exeFINAL.exeUpdater.exe

description	pid	process	target process
PID 1668 wrote to memory of 2024	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	FINAL.exe
PID 1668 wrote to memory of 2024	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	FINAL.exe
PID 1668 wrote to memory of 2024	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	FINAL.exe
PID 1668 wrote to memory of 2024	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	FINAL.exe
PID 1668 wrote to memory of 952	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	K7C.exe
PID 1668 wrote to memory of 952	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	K7C.exe
PID 1668 wrote to memory of 952	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	K7C.exe
PID 1668 wrote to memory of 952	1668	d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe	K7C.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 2024 wrote to memory of 272	2024	FINAL.exe	Updater.exe
PID 272 wrote to memory of 1020	272	Updater.exe	netsh.exe
PID 272 wrote to memory of 1020	272	Updater.exe	netsh.exe
PID 272 wrote to memory of 1020	272	Updater.exe	netsh.exe
PID 272 wrote to memory of 1020	272	Updater.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe
"C:\Users\Admin\AppData\Local\Temp\d6e84941ce5d258a635374d5d3a35b7b50f920c9da6d2804c3469e2681c9a525.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1668

C:\Users\Admin\AppData\Local\Temp\FINAL.exe
"C:\Users\Admin\AppData\Local\Temp\FINAL.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2024

C:\Users\Admin\AppData\Local\Temp\Updater.exe
"C:\Users\Admin\AppData\Local\Temp\Updater.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:272

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Updater.exe" "Updater.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:1020

C:\Users\Admin\AppData\Local\Temp\K7C.exe
"C:\Users\Admin\AppData\Local\Temp\K7C.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\FINAL.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
C:\Users\Admin\AppData\Local\Temp\FINAL.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
C:\Users\Admin\AppData\Local\Temp\K7C.exe
Filesize
169KB

MD5
9f08c4f3854154cee2d24d09ece88150

SHA1
7ef1926d89117b9cbaa1857559bacf52886f6556

SHA256
e721f7f250214fbedac6a6393842f43a455af8969a61ef219a67df7e8ac8764d

SHA512
199de99c8164f5efa9b10009067c37260a9a7827fffce0f1a8514b136372e474520619898db41fdc51706eaea197fa5b5e470d4541c8085c77d5eddcb9148b01

Download Submit
C:\Users\Admin\AppData\Local\Temp\Updater.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
C:\Users\Admin\AppData\Local\Temp\Updater.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
\Users\Admin\AppData\Local\Temp\FINAL.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
\Users\Admin\AppData\Local\Temp\K7C.exe
Filesize
169KB

MD5
9f08c4f3854154cee2d24d09ece88150

SHA1
7ef1926d89117b9cbaa1857559bacf52886f6556

SHA256
e721f7f250214fbedac6a6393842f43a455af8969a61ef219a67df7e8ac8764d

SHA512
199de99c8164f5efa9b10009067c37260a9a7827fffce0f1a8514b136372e474520619898db41fdc51706eaea197fa5b5e470d4541c8085c77d5eddcb9148b01

Download Submit
\Users\Admin\AppData\Local\Temp\K7C.exe
Filesize
169KB

MD5
9f08c4f3854154cee2d24d09ece88150

SHA1
7ef1926d89117b9cbaa1857559bacf52886f6556

SHA256
e721f7f250214fbedac6a6393842f43a455af8969a61ef219a67df7e8ac8764d

SHA512
199de99c8164f5efa9b10009067c37260a9a7827fffce0f1a8514b136372e474520619898db41fdc51706eaea197fa5b5e470d4541c8085c77d5eddcb9148b01

Download Submit
\Users\Admin\AppData\Local\Temp\Updater.exe
Filesize
23KB

MD5
b047f49e5cf1754aa6c724d8b6c3a156

SHA1
30d868579371b3f904b02b19b2220292d129babd

SHA256
8cfa7483199a3227b41b550cd0be66b9048390084f9a456af5ce05082145c698

SHA512
583a6a8493e497aef0445020382c7ede3a47dd2cc070d4ce3fa85545d16f16219da964c22f09a43d9614d9c3586dcf12f45946e071d3b7153064f00b51e0f184

Download Submit
memory/272-74-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/272-77-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/272-69-0x0000000000000000-mapping.dmp

Download
memory/952-62-0x0000000000000000-mapping.dmp

Download
memory/1020-75-0x0000000000000000-mapping.dmp

Download
memory/1668-65-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/1668-55-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/1668-54-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

Download
memory/2024-57-0x0000000000000000-mapping.dmp

Download
memory/2024-73-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-68-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-66-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download