Malware Analysis Report

2024-09-11 16:49

Sample ID 240615-c4z4xawglf
Target e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe
SHA256 e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5
Tags
stealc vidar 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

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5

Threat Level: Known bad

The file e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe was found to be: Known bad.

Malicious Activity Summary

stealc vidar spyware stealer

Vidar

Detect Vidar Stealer

Stealc

Detect binaries embedding considerable number of MFA browser extension IDs.

Detects Windows executables referencing non-Windows User-Agents

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Detects executables containing potential Windows Defender anti-emulation checks

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Downloads MZ/PE file

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
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

2024-06-15 02:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 02:38

Reported

2024-06-15 02:41

Platform

win7-20240220-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Detect binaries embedding considerable number of MFA browser extension IDs.

Description Indicator Process Target
N/A N/A N/A N/A
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Description Indicator Process Target
N/A N/A N/A N/A
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Detects Windows executables referencing non-Windows User-Agents

Description Indicator Process Target
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Description Indicator Process Target
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Description Indicator Process Target
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Detects executables containing potential Windows Defender anti-emulation checks

Description Indicator Process Target
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Downloads MZ/PE file

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2276 set thread context of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A

Delays execution with timeout.exe

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A
N/A N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2276 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2624 wrote to memory of 1940 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 2624 wrote to memory of 1940 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 2624 wrote to memory of 1940 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 2624 wrote to memory of 1940 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 1940 wrote to memory of 908 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1940 wrote to memory of 908 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1940 wrote to memory of 908 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1940 wrote to memory of 908 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe

"C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe"

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AKKEGHJDHDAF" & 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 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp
FI 65.109.240.138:443 65.109.240.138 tcp

Files

memory/2276-2-0x000000013F950000-0x00000001407DC000-memory.dmp

memory/2276-5-0x000000013F950000-0x00000001407DC000-memory.dmp

memory/2624-6-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2276-13-0x000000013F950000-0x00000001407DC000-memory.dmp

memory/2624-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp

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

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar5A47.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-209-0x0000000019380000-0x00000000195DF000-memory.dmp

memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp

memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 02:38

Reported

2024-06-15 02:41

Platform

win10v2004-20240508-en

Max time kernel

79s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe"

Signatures

Detect Vidar Stealer

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

stealer stealc

Vidar

stealer vidar

Detects Windows executables referencing non-Windows User-Agents

Description Indicator Process Target
N/A N/A N/A N/A
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Description Indicator Process Target
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Detects executables containing potential Windows Defender anti-emulation checks

Description Indicator Process Target
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Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2972 set thread context of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A

Delays execution with timeout.exe

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A
N/A N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2972 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2972 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2972 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2972 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 2972 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
PID 64 wrote to memory of 3020 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 64 wrote to memory of 3020 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 64 wrote to memory of 3020 N/A C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe C:\Windows\SysWOW64\cmd.exe
PID 3020 wrote to memory of 1640 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3020 wrote to memory of 1640 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3020 wrote to memory of 1640 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe

"C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe"

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe" & rd /s /q "C:\ProgramData\JDAKJJDBGCAK" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 steamcommunity.com udp
US 52.111.227.11:443 tcp

Files

memory/2972-4-0x00007FF68D580000-0x00007FF68E40C000-memory.dmp

memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp

memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp

memory/2972-8-0x00007FF68D580000-0x00007FF68E40C000-memory.dmp

memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp

memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp

memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp

memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp