Malware Analysis Report

2024-09-11 02:47

Sample ID 240527-bglgkaag4v
Target 8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9
SHA256 8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9
Tags
neshta agenttesla keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9

Threat Level: Known bad

The file 8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9 was found to be: Known bad.

Malicious Activity Summary

neshta agenttesla keylogger persistence spyware stealer trojan

Agenttesla family

AgentTesla

Detect Neshta payload

Neshta family

Neshta

Reads user/profile data of local email clients

Modifies system executable filetype association

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Checks computer location settings

Executes dropped EXE

Reads WinSCP keys stored on the system

Loads dropped DLL

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Modifies registry class

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Event Triggered Execution
T1546
Change Default File Association
T1546.001
Privilege Escalation
TA0004
Event Triggered Execution
T1546
Change Default File Association
T1546.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Credentials in Registry
T1552.002
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-27 01:06

Signatures

Agenttesla family

agenttesla

Detect Neshta payload

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

Neshta family

neshta

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-27 01:06

Reported

2024-05-27 01:09

Platform

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect Neshta payload

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

Neshta

persistence spyware neshta

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Modifies system executable filetype association

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\svchost.com C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2136 wrote to memory of 1184 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe
PID 2136 wrote to memory of 1184 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe
PID 2136 wrote to memory of 1184 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe
PID 2136 wrote to memory of 1184 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

"C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

"C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

MD5 6edff2bfeb7e739bc20ef2a6fab72ec7
SHA1 3965cb438ec830065dc7fe4c67f522e8d020dd61
SHA256 aa5aeacbb7f01fbac5ea4fff8cab136733b0616d80611310c75e19db6bf3d01e
SHA512 e2a47a7a90c0366c6119e5b534c02d9439fca0b48e1e04b29ff90130ea8a89e0492da59b7f27921ce9a19975ab95053575678ad0920771139b1aa3ff63695f35

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

MD5 cf6c595d3e5e9667667af096762fd9c4
SHA1 9bb44da8d7f6457099cb56e4f7d1026963dce7ce
SHA256 593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d
SHA512 ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

memory/1184-12-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

memory/1184-13-0x00000000001A0000-0x00000000001E2000-memory.dmp

memory/2136-14-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1184-15-0x0000000073F60000-0x000000007464E000-memory.dmp

memory/1184-16-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

memory/1184-17-0x0000000073F60000-0x000000007464E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-27 01:06

Reported

2024-05-27 01:09

Platform

win10v2004-20240508-en

Max time kernel

134s

Max time network

114s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect Neshta payload

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

Neshta

persistence spyware neshta

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Modifies system executable filetype association

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\svchost.com C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3456 wrote to memory of 3956 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe
PID 3456 wrote to memory of 3956 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe
PID 3456 wrote to memory of 3956 N/A C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

"C:\Users\Admin\AppData\Local\Temp\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

"C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 mail.laufer.com.br udp
US 50.116.87.59:587 mail.laufer.com.br tcp
US 8.8.8.8:53 59.87.116.50.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\3582-490\8a4e16b0efb6699168d1e94faeacc871bde6e5eb4accec597c41e95bce4d9ab9.exe

MD5 6edff2bfeb7e739bc20ef2a6fab72ec7
SHA1 3965cb438ec830065dc7fe4c67f522e8d020dd61
SHA256 aa5aeacbb7f01fbac5ea4fff8cab136733b0616d80611310c75e19db6bf3d01e
SHA512 e2a47a7a90c0366c6119e5b534c02d9439fca0b48e1e04b29ff90130ea8a89e0492da59b7f27921ce9a19975ab95053575678ad0920771139b1aa3ff63695f35

memory/3956-12-0x0000000073D5E000-0x0000000073D5F000-memory.dmp

memory/3956-13-0x0000000000090000-0x00000000000D2000-memory.dmp

memory/3956-14-0x0000000005120000-0x00000000056C4000-memory.dmp

memory/3956-16-0x0000000004A80000-0x0000000004AE6000-memory.dmp

memory/3456-15-0x0000000000400000-0x000000000041B000-memory.dmp

memory/3956-17-0x0000000073D50000-0x0000000074500000-memory.dmp

memory/3956-18-0x00000000058D0000-0x0000000005962000-memory.dmp

memory/3956-19-0x0000000007960000-0x00000000079B0000-memory.dmp

memory/3956-20-0x0000000007A50000-0x0000000007AEC000-memory.dmp

memory/3956-21-0x0000000007A40000-0x0000000007A4A000-memory.dmp

memory/3956-22-0x0000000073D5E000-0x0000000073D5F000-memory.dmp

memory/3956-23-0x0000000073D50000-0x0000000074500000-memory.dmp