Malware Analysis Report

2025-01-22 14:04

Sample ID 240229-2vybdsfc52
Target dda4bd098a1d06e17cd95a6b9abbe38f
SHA256 266c3b34ff742e66cead40026e567281279a64f0484b8143b340d26dbb801c7a
Tags
njrat hacked evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

266c3b34ff742e66cead40026e567281279a64f0484b8143b340d26dbb801c7a

Threat Level: Known bad

The file dda4bd098a1d06e17cd95a6b9abbe38f was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

Checks computer location settings

Drops startup file

Executes dropped EXE

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-29 22:54

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-29 22:54

Reported

2024-02-29 22:57

Platform

win7-20240221-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a9a8774b8abcb64810c1407719568ea1.exe C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a9a8774b8abcb64810c1407719568ea1.exe C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a9a8774b8abcb64810c1407719568ea1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sestym32.exe\" .." C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\a9a8774b8abcb64810c1407719568ea1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sestym32.exe\" .." C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe

"C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe"

C:\Users\Admin\AppData\Local\Temp\sestym32.exe

"C:\Users\Admin\AppData\Local\Temp\sestym32.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\sestym32.exe" "sestym32.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 devel.no-ip.biz udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
US 8.8.8.8:53 devel.no-ip.biz udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp

Files

memory/2376-0-0x00000000002F0000-0x0000000000324000-memory.dmp

memory/2376-1-0x0000000073FC0000-0x00000000746AE000-memory.dmp

memory/2376-2-0x00000000002A0000-0x00000000002E0000-memory.dmp

memory/2376-3-0x00000000002A0000-0x00000000002E0000-memory.dmp

memory/2376-4-0x00000000005B0000-0x00000000005BC000-memory.dmp

\Users\Admin\AppData\Local\Temp\sestym32.exe

MD5 dda4bd098a1d06e17cd95a6b9abbe38f
SHA1 30e32a7f08cbdd8bf69e24c82b5a008adf4a67db
SHA256 266c3b34ff742e66cead40026e567281279a64f0484b8143b340d26dbb801c7a
SHA512 8243fc20b28bf4a44019c783e107f65a908c82080dfbb56c06934ba9b6e4c3d1c2edca9943721fe3a70131ca6624e47a9fc958a396b324a1c4c650ea2dd4f32b

memory/2376-12-0x0000000073FC0000-0x00000000746AE000-memory.dmp

memory/2560-14-0x0000000073FC0000-0x00000000746AE000-memory.dmp

memory/2560-13-0x0000000000CE0000-0x0000000000D14000-memory.dmp

memory/2560-15-0x00000000004E0000-0x0000000000520000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-29 22:54

Reported

2024-02-29 22:57

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a9a8774b8abcb64810c1407719568ea1.exe C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a9a8774b8abcb64810c1407719568ea1.exe C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a9a8774b8abcb64810c1407719568ea1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sestym32.exe\" .." C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a9a8774b8abcb64810c1407719568ea1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sestym32.exe\" .." C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sestym32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe

"C:\Users\Admin\AppData\Local\Temp\dda4bd098a1d06e17cd95a6b9abbe38f.exe"

C:\Users\Admin\AppData\Local\Temp\sestym32.exe

"C:\Users\Admin\AppData\Local\Temp\sestym32.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\sestym32.exe" "sestym32.exe" ENABLE

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=4080 --field-trial-handle=3084,i,14217130992253490921,11543335378077656547,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 devel.no-ip.biz udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
US 8.8.8.8:53 devel.no-ip.biz udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp
IQ 185.133.224.9:1998 devel.no-ip.biz tcp

Files

memory/1120-1-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/1120-0-0x0000000000A50000-0x0000000000A84000-memory.dmp

memory/1120-2-0x00000000054E0000-0x000000000557C000-memory.dmp

memory/1120-3-0x0000000005B30000-0x00000000060D4000-memory.dmp

memory/1120-4-0x0000000005580000-0x0000000005612000-memory.dmp

memory/1120-5-0x0000000005780000-0x0000000005790000-memory.dmp

memory/1120-6-0x0000000005470000-0x000000000547A000-memory.dmp

memory/1120-7-0x0000000005790000-0x00000000057E6000-memory.dmp

memory/1120-8-0x0000000005780000-0x0000000005790000-memory.dmp

memory/1120-9-0x0000000006920000-0x000000000692C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\sestym32.exe

MD5 dda4bd098a1d06e17cd95a6b9abbe38f
SHA1 30e32a7f08cbdd8bf69e24c82b5a008adf4a67db
SHA256 266c3b34ff742e66cead40026e567281279a64f0484b8143b340d26dbb801c7a
SHA512 8243fc20b28bf4a44019c783e107f65a908c82080dfbb56c06934ba9b6e4c3d1c2edca9943721fe3a70131ca6624e47a9fc958a396b324a1c4c650ea2dd4f32b

memory/3972-22-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/3972-23-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

memory/1120-24-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/3972-25-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

memory/3972-27-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/3972-28-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

memory/3972-29-0x0000000004CA0000-0x0000000004CB0000-memory.dmp