Malware Analysis Report

2024-08-06 08:51

Sample ID 230412-3hkefaga79
Target blueberry_obfuscator-VM.exe
SHA256 2b462a8fa08088d8a738b3e9fdad71b1655c44e5497c1cb212e514f536a780ab
Tags
agenttesla elysiumstealer keylogger 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

2b462a8fa08088d8a738b3e9fdad71b1655c44e5497c1cb212e514f536a780ab

Threat Level: Known bad

The file blueberry_obfuscator-VM.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla elysiumstealer keylogger spyware stealer trojan

AgentTesla

ElysiumStealer

ElysiumStealer Support DLL

AgentTesla payload

Loads dropped DLL

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V6

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040

Analysis: static1

Detonation Overview

Reported

2023-04-12 23:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-12 23:30

Reported

2023-04-12 23:34

Platform

win7-20230220-en

Max time kernel

30s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

ElysiumStealer

stealer elysiumstealer

ElysiumStealer Support DLL

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

AgentTesla payload

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

Loads dropped DLL

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1524 wrote to memory of 728 N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe C:\Windows\SysWOW64\WerFault.exe
PID 1524 wrote to memory of 728 N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe C:\Windows\SysWOW64\WerFault.exe
PID 1524 wrote to memory of 728 N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe C:\Windows\SysWOW64\WerFault.exe
PID 1524 wrote to memory of 728 N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe

"C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 1496

Network

Country Destination Domain Proto
US 8.8.8.8:53 keyauth.win udp
US 104.21.57.106:443 keyauth.win tcp

Files

memory/1524-54-0x00000000000F0000-0x0000000000642000-memory.dmp

memory/1524-55-0x00000000023D0000-0x00000000023E4000-memory.dmp

\Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\0x7RT.dll

MD5 94173de2e35aa8d621fc1c4f54b2a082
SHA1 fbb2266ee47f88462560f0370edb329554cd5869
SHA256 7e2c70b7732fb1a9a61d7ce3d7290bc7b31ea28cbfb1dbc79d377835615b941f
SHA512 cadbf4db0417283a02febbabd337bf17b254a6eb6e771f8a553a140dd2b04efd0672b1f3175c044a3edd0a911ce59d6695f765555262560925f3159bb8f3b798

memory/1524-59-0x0000000004560000-0x00000000045A0000-memory.dmp

memory/1524-60-0x00000000064C0000-0x00000000066D6000-memory.dmp

memory/1524-61-0x00000000066E0000-0x000000000682E000-memory.dmp

memory/1524-62-0x0000000005710000-0x0000000005724000-memory.dmp

memory/1524-63-0x0000000004560000-0x00000000045A0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-12 23:30

Reported

2023-04-12 23:35

Platform

win10v2004-20230220-en

Max time kernel

210s

Max time network

179s

Command Line

"C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe"

Signatures

ElysiumStealer

stealer elysiumstealer

ElysiumStealer Support DLL

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

Loads dropped DLL

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

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe

"C:\Users\Admin\AppData\Local\Temp\blueberry_obfuscator-VM.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 assets.msn.com udp
NL 95.101.74.139:443 assets.msn.com tcp
US 8.8.8.8:53 139.74.101.95.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 keyauth.win udp
US 188.114.96.0:443 keyauth.win tcp
US 8.8.8.8:53 0.96.114.188.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
NL 8.238.179.126:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 api.msn.com tcp
US 8.8.8.8:53 62.13.109.52.in-addr.arpa udp
NL 8.238.179.126:80 tcp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp

Files

memory/4276-133-0x0000000000D70000-0x00000000012C2000-memory.dmp

memory/4276-134-0x0000000005D30000-0x0000000005D40000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\0x7RT.dll

MD5 94173de2e35aa8d621fc1c4f54b2a082
SHA1 fbb2266ee47f88462560f0370edb329554cd5869
SHA256 7e2c70b7732fb1a9a61d7ce3d7290bc7b31ea28cbfb1dbc79d377835615b941f
SHA512 cadbf4db0417283a02febbabd337bf17b254a6eb6e771f8a553a140dd2b04efd0672b1f3175c044a3edd0a911ce59d6695f765555262560925f3159bb8f3b798

memory/4276-139-0x0000000006740000-0x0000000006CE4000-memory.dmp

memory/4276-140-0x0000000005F20000-0x0000000005FB2000-memory.dmp

memory/4276-141-0x0000000005EB0000-0x0000000005EC2000-memory.dmp

memory/4276-142-0x00000000071F0000-0x000000000722C000-memory.dmp

memory/4276-143-0x0000000007330000-0x000000000733A000-memory.dmp

memory/4276-144-0x0000000005D30000-0x0000000005D40000-memory.dmp

memory/4276-145-0x0000000005D30000-0x0000000005D40000-memory.dmp

memory/4276-146-0x0000000005D30000-0x0000000005D40000-memory.dmp