vidar | 38859546ef350ec40c78314007ce015888d3a7c5cc58333777f4d5c6f2a33303

General

Target
msu3.exe
Size 7.9MB
Sample260928-pedktstapf
SHA256 38859546ef350ec40c78314007ce015888d3a7c5cc58333777f4d5c6f2a33303
MD5 cc41c659daea53178c2c935e1b8ba751
SHA1 83ce15386666a45bec961d85ff7189eb4a9f1d71
SHA512 61870cbdc7d2e28c6c9765c9da4b1490bcbd79fa7dec9e12fcfdd6b76e3c904c30889f90655003d9dbb37d889b861cf4317fa06bc75dec2d4d319061225f9177
SSDEEP 49152:+zRTsFp8nCLHWOAgC6pN4YAVAoTTQSNrA6OF7ifWmTiJt/A8FOWkqYeMYj2AEivt:eONLCU449V41Fpa3lvBr
TLSH
T1D8866B0B7A8851F4C595CB38C43B42ABB624BC8C973137E76E51BAB02FB17C1AA75744
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

9b94622d620c1dea9c5d1492296e912c defense_evasion discovery vidar stealer

Malware Config

Extracted

Family

vidar

Version

3.6

Botnet

9b94622d620c1dea9c5d1492296e912c

C2

https://31.58.181.194
https://telegram.me/j88hor
https://community.fandom.com/wikia.php?controller=UserProfile&method=getUserData&format=json&userId=64296247
https://steamcommunity.com/profiles/76561198633950250

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/150.0.0.0 YaBrowser/26.8.0.0

Signatures

Family: Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	msu3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	msu3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	msu3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	msu3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	msu3.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	msu3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	msu3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	msu3.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	msu3.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	msu3.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	msu3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	msu3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	msu3.exe

Checks system information in the registry 2 TTPs 2 IoCs

System information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	msu3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	msu3.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	msu3.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	msu3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	msu3.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\BIOS	msu3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msu3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msu3.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe
1064	msu3.exe

C:\Users\Admin\AppData\Local\Temp\msu3.exe
"C:\Users\Admin\AppData\Local\Temp\msu3.exe"
1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks system information in the registry
- Checks for VirtualBox DLLs, possible anti-VM trick
- Reads the TCP/IP host and domain name from the registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:1064

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

7

T1012

System Information Discovery

4

T1082

System Network Configuration Discovery

1

T1016

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1064-1-0x0000000570000000-0x0000000570295000-memory.dmp

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memory/1064-0-0x0000000570000000-0x0000000570295000-memory.dmp

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memory/1064-2-0x0000000570000000-0x0000000570295000-memory.dmp

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memory/1064-3-0x0000000570000000-0x0000000570295000-memory.dmp

Download

memory/1064-4-0x0000000570000000-0x0000000570295000-memory.dmp

Download

memory/1064-5-0x0000000570000000-0x0000000570295000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads