Malware Analysis Report

2024-09-11 16:28

Sample ID 240613-3jn41svgrh
Target 8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0
SHA256 8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0
Tags
stealc vidar discovery spyware stealer
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

8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0

Threat Level: Known bad

The file 8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

Downloads MZ/PE file

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Delays execution with timeout.exe

Modifies system certificate store

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Subvert Trust Controls
T1553
Install Root Certificate
T1553.004
Modify Registry
T1112
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
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

2024-06-13 23:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 23:32

Reported

2024-06-13 23:37

Platform

win7-20240611-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe"

Signatures

Detect Vidar Stealer

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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Delays execution with timeout.exe

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

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25 C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 340 N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 340 N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 340 N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 340 N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe C:\Windows\SysWOW64\cmd.exe
PID 340 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 340 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 340 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 340 wrote to memory of 1692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe

"C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DGHIDHCAAKEC" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
NL 149.154.167.99:443 t.me tcp
NL 149.154.167.99:443 t.me tcp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 steamcommunity.com udp
BE 104.68.92.92:443 steamcommunity.com tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
RU 5.42.65.116:80 tcp
RU 5.42.65.116:80 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
RU 5.42.65.116:80 tcp
RU 5.42.65.116:80 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp
FI 95.217.135.112:443 95.217.135.112 tcp

Files

memory/2368-0-0x0000000000810000-0x0000000001466000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab1383.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar1395.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

MD5 041e8b1a411f1859d3edb5f5cc32c095
SHA1 5233ea56ade0358c242bbe405820fa0ede650dba
SHA256 ee9db1e67b8c49de629d8398c50ff99614e26d302da896a8f19125349604afd1
SHA512 c13677826a5d8b93f4bb98b5f464e909eef9037a06dba195397ef577414e2a04d7be3f3a63f35e301e7f1773926b2c8efb47b3a7b978dea6df70da1f8f717976

memory/2368-174-0x000000002E410000-0x000000002E66F000-memory.dmp

memory/2368-379-0x0000000001580000-0x0000000001581000-memory.dmp

memory/2368-398-0x0000000001580000-0x0000000001581000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 23:32

Reported

2024-06-13 23:37

Platform

win10-20240404-en

Max time kernel

134s

Max time network

244s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe"

Signatures

Detect Vidar Stealer

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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe

"C:\Users\Admin\AppData\Local\Temp\8d784af9aaae89867e78c0f3749789dbaf1026e56184c4c40f31c8e5a0af57c0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 8.8.8.8:53 244.235.13.49.in-addr.arpa udp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
RU 5.42.65.116:80 tcp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 3.17.178.52.in-addr.arpa udp

Files

memory/2752-0-0x0000000000390000-0x0000000000FE6000-memory.dmp

memory/2752-18-0x0000000020C10000-0x0000000020E6F000-memory.dmp