njrat | 77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a

Analysis

max time kernel
153s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 15:40

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General

Target

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
Size

628KB
MD5

32618460447cf4a7b52f2f3738701cb6
SHA1

edbc1a16e4a5f5f2478f898b6b8a0a9c28e2140a
SHA256

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a
SHA512

7ac26eba673f710ac85d2ae133165eb9d68b1a2ccb4709203e08a4159f7eec961e875fef0d61a449830f418f605a19c3bcb4794db36f0cfe3bda7e1323df4000
SSDEEP

12288:EK/R+xDNXvwUmBnpSz22rDvH7h5vVws4sL+cer/B+A3Fg2XFnTjW:QdwLFpSzFDvF7w3sFS/B++FT

Score

10^/10

njrat xbooh evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

XbOoH

madrid7.zapto.org:1177

Mutex

be03385064ece2f2ea31c1c1cbb33041

Attributes

reg_key
be03385064ece2f2ea31c1c1cbb33041
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 5 IoCs

Processes:

TempGoogleUpdate.exeTempserver.exeTempserver.exesvhost.exesvhost.exe

pid process

2464 TempGoogleUpdate.exe
5072 Tempserver.exe
1960 Tempserver.exe
2004 svhost.exe
1484 svhost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3656 netsh.exe

pid	process
2464	TempGoogleUpdate.exe
5072	Tempserver.exe
1960	Tempserver.exe
2004	svhost.exe
1484	svhost.exe

pid	process
3656	netsh.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exeTempGoogleUpdate.exeTempserver.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	TempGoogleUpdate.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	Tempserver.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svhost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\be03385064ece2f2ea31c1c1cbb33041 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\be03385064ece2f2ea31c1c1cbb33041 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Tempserver.exesvhost.exe

description	pid	process	target process
PID 5072 set thread context of 1960	5072	Tempserver.exe	Tempserver.exe
PID 2004 set thread context of 1484	2004	svhost.exe	svhost.exe

Drops file in Windows directory 3 IoCs

Processes:

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
File created	C:\Windows\assembly\Desktop.ini	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe

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

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Tempserver.exesvhost.exe

description pid process

Token: SeDebugPrivilege 5072 Tempserver.exe
Token: SeDebugPrivilege 2004 svhost.exe

description	pid	process
Token: SeDebugPrivilege	5072	Tempserver.exe
Token: SeDebugPrivilege	2004	svhost.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exeTempGoogleUpdate.exeTempserver.exeTempserver.exesvhost.exesvhost.exe

description	pid	process	target process
PID 1360 wrote to memory of 2464	1360	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe	TempGoogleUpdate.exe
PID 1360 wrote to memory of 2464	1360	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe	TempGoogleUpdate.exe
PID 1360 wrote to memory of 2464	1360	77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe	TempGoogleUpdate.exe
PID 2464 wrote to memory of 5072	2464	TempGoogleUpdate.exe	Tempserver.exe
PID 2464 wrote to memory of 5072	2464	TempGoogleUpdate.exe	Tempserver.exe
PID 2464 wrote to memory of 5072	2464	TempGoogleUpdate.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 5072 wrote to memory of 1960	5072	Tempserver.exe	Tempserver.exe
PID 1960 wrote to memory of 2004	1960	Tempserver.exe	svhost.exe
PID 1960 wrote to memory of 2004	1960	Tempserver.exe	svhost.exe
PID 1960 wrote to memory of 2004	1960	Tempserver.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 2004 wrote to memory of 1484	2004	svhost.exe	svhost.exe
PID 1484 wrote to memory of 3656	1484	svhost.exe	netsh.exe
PID 1484 wrote to memory of 3656	1484	svhost.exe	netsh.exe
PID 1484 wrote to memory of 3656	1484	svhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe
"C:\Users\Admin\AppData\Local\Temp\77d32503cef31dc249996ca85404b56ef6fb97f02f3c21378f2b80b8fab8913a.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1360

C:\Users\Admin\AppData\Local\TempGoogleUpdate.exe
"C:\Users\Admin\AppData\Local\TempGoogleUpdate.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2464

C:\Users\Admin\AppData\Local\Tempserver.exe
"C:\Users\Admin\AppData\Local\Tempserver.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5072

C:\Users\Admin\AppData\Local\Tempserver.exe
C:\Users\Admin\AppData\Local\Tempserver.exe
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1960

C:\Users\Admin\AppData\Local\Temp\svhost.exe
"C:\Users\Admin\AppData\Local\Temp\svhost.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1484

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svhost.exe" "svhost.exe" ENABLE
7⤵
- Modifies Windows Firewall
PID:3656

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Tempserver.exe.log
Filesize
224B

MD5
c19eb8c8e7a40e6b987f9d2ee952996e

SHA1
6fc3049855bc9100643e162511673c6df0f28bfb

SHA256
677e9e30350df17e2bc20fa9f7d730e9f7cc6e870d6520a345f5f7dc5b31f58a

SHA512
860713b4a787c2189ed12a47d4b68b60ac00c7a253cae52dd4eb9276dacafeae3a81906b6d0742c8ecfdfaa255777c445beb7c2a532f3c677a9903237ac97596

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\svhost.exe.log
Filesize
224B

MD5
c19eb8c8e7a40e6b987f9d2ee952996e

SHA1
6fc3049855bc9100643e162511673c6df0f28bfb

SHA256
677e9e30350df17e2bc20fa9f7d730e9f7cc6e870d6520a345f5f7dc5b31f58a

SHA512
860713b4a787c2189ed12a47d4b68b60ac00c7a253cae52dd4eb9276dacafeae3a81906b6d0742c8ecfdfaa255777c445beb7c2a532f3c677a9903237ac97596

Download Submit
C:\Users\Admin\AppData\Local\TempGoogleUpdate.exe
Filesize
290KB

MD5
c80e8284eade9b7e3482c39d881359af

SHA1
4f6e2a91e80608f0967ea0fd56cc574ea2947573

SHA256
d0f6145e4b390237ae1f708d027400fd67c78afde77bd3418688832f4ad11bb3

SHA512
77333656590535fcfdbd1e2a8612270387a769126fe29bc93ec1f078a104a5be9450e4f8cb3f87c5496deb745445fa08a947e07742efa33d44c08f57c294bf3f

Download Submit
C:\Users\Admin\AppData\Local\TempGoogleUpdate.exe
Filesize
290KB

MD5
c80e8284eade9b7e3482c39d881359af

SHA1
4f6e2a91e80608f0967ea0fd56cc574ea2947573

SHA256
d0f6145e4b390237ae1f708d027400fd67c78afde77bd3418688832f4ad11bb3

SHA512
77333656590535fcfdbd1e2a8612270387a769126fe29bc93ec1f078a104a5be9450e4f8cb3f87c5496deb745445fa08a947e07742efa33d44c08f57c294bf3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
C:\Users\Admin\AppData\Local\Tempserver.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
C:\Users\Admin\AppData\Local\Tempserver.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
C:\Users\Admin\AppData\Local\Tempserver.exe
Filesize
159KB

MD5
edf5301fc6cfd9e913bfa6d7084ae3f2

SHA1
e1c326b038e89b646ed06484b6b62187c7b277b2

SHA256
f67e38ba014ea58fb0c8d38a8e914b04f11adef82bff454c63fedc935c64527e

SHA512
ca63415e91ce2a8221aff80b03c72de108893ba73895639360e158cfaf9238ed2fa28733650966255588876d59c6e5299ed64a6e9851d468208b25dff1115674

Download Submit
memory/1360-133-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1360-132-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1484-160-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1484-159-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1484-154-0x0000000000000000-mapping.dmp

Download
memory/1960-153-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1960-142-0x0000000000000000-mapping.dmp

Download
memory/1960-149-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1960-148-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/1960-143-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2004-158-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/2004-150-0x0000000000000000-mapping.dmp

Download
memory/2464-146-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/2464-137-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/2464-134-0x0000000000000000-mapping.dmp

Download
memory/3656-161-0x0000000000000000-mapping.dmp

Download
memory/5072-147-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/5072-141-0x0000000074EC0000-0x0000000075471000-memory.dmp

Filesize
5.7MB

Download
memory/5072-138-0x0000000000000000-mapping.dmp

Download