Malware Analysis Report

2024-10-23 20:45

Sample ID 240528-ystnmsbd34
Target 7e39ce738c3e570aad736d1a78886007_JaffaCakes118
SHA256 bb93c14aae68d7a38263e73b968b08f5d4a030b7d94bc6ea86620bb17269f540
Tags
njrat evasion persistence trojan nome
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

bb93c14aae68d7a38263e73b968b08f5d4a030b7d94bc6ea86620bb17269f540

Threat Level: Known bad

The file 7e39ce738c3e570aad736d1a78886007_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

njrat evasion persistence trojan nome

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-28 20:03

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-28 20:03

Reported

2024-05-28 20:05

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c3e40c0783d13e5d49201ec30733cfd5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .." C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\c3e40c0783d13e5d49201ec30733cfd5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .." C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe"

C:\Users\Admin\AppData\Roaming\smsm.exe

"C:\Users\Admin\AppData\Roaming\smsm.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\smsm.exe" "smsm.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
EG 156.196.182.107:2222 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
EG 156.196.182.107:2222 tcp
US 8.8.8.8:53 146.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp

Files

memory/4024-0-0x0000000074622000-0x0000000074623000-memory.dmp

memory/4024-1-0x0000000074620000-0x0000000074BD1000-memory.dmp

memory/4024-2-0x0000000074620000-0x0000000074BD1000-memory.dmp

C:\Users\Admin\AppData\Roaming\smsm.exe

MD5 7e39ce738c3e570aad736d1a78886007
SHA1 eeede7d9801fc51ad732f08d4f5cfd99e35d9722
SHA256 bb93c14aae68d7a38263e73b968b08f5d4a030b7d94bc6ea86620bb17269f540
SHA512 584540ce8b94761e10228063d55d995aac77f20101d1c586e10139254af268192c2fd664ce10581134a22765b36ded9896809171961e9e1fe7f3d3313dae548d

memory/4024-12-0x0000000074620000-0x0000000074BD1000-memory.dmp

memory/4832-13-0x0000000074620000-0x0000000074BD1000-memory.dmp

memory/4832-14-0x0000000074620000-0x0000000074BD1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-28 20:03

Reported

2024-05-28 20:05

Platform

win7-20240215-en

Max time kernel

149s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\c3e40c0783d13e5d49201ec30733cfd5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .." C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c3e40c0783d13e5d49201ec30733cfd5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .." C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\smsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7e39ce738c3e570aad736d1a78886007_JaffaCakes118.exe"

C:\Users\Admin\AppData\Roaming\smsm.exe

"C:\Users\Admin\AppData\Roaming\smsm.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\smsm.exe" "smsm.exe" ENABLE

Network

Country Destination Domain Proto
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp
EG 156.196.182.107:2222 tcp

Files

memory/2792-0-0x00000000747B1000-0x00000000747B2000-memory.dmp

memory/2792-1-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/2792-2-0x00000000747B0000-0x0000000074D5B000-memory.dmp

\Users\Admin\AppData\Roaming\smsm.exe

MD5 7e39ce738c3e570aad736d1a78886007
SHA1 eeede7d9801fc51ad732f08d4f5cfd99e35d9722
SHA256 bb93c14aae68d7a38263e73b968b08f5d4a030b7d94bc6ea86620bb17269f540
SHA512 584540ce8b94761e10228063d55d995aac77f20101d1c586e10139254af268192c2fd664ce10581134a22765b36ded9896809171961e9e1fe7f3d3313dae548d

memory/2680-10-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/2792-12-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/2680-11-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/2680-13-0x00000000747B0000-0x0000000074D5B000-memory.dmp