vidar | 4a09459d095915e4ea732d5fd9aa453e0a05603baa711696bcc9c9f479cbcecf

Analysis

max time kernel
40s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-01-2023 10:13

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General

Target

Setup.exe
Size

470.6MB
MD5

5909ae2b1c956d4c13b1e6041fdb7f9d
SHA1

8e500369fda8625e0c153c07aabc3ca383d49d44
SHA256

b4b353183fc52980c539601936d8a3774e78f4f8d44e64e8e7082427eed06dbf
SHA512

de385015cb140cbeed61dfd6f923a1b8db054e5cb062e6ca8be0a94de9bccbe3ef3cb1e9fcceb14a0aa64f327e35efc449c47e7d15cb9e358ef8bc80ba2411d2
SSDEEP

49152:FDHrATS9GPSiK6Wl6n+XXZEk4fvXAFXr4ND9pv/OSt5GjhCbhontKH5ck6JjH:FDHoPnWoUSXhjpv//t0jhC+ntkOn

Score

10^/10

vidar 15 evasion stealer trojan

Malware Config

Extracted

Family

vidar

Version

2.2

Botnet

https://t.me/litlebey

https://steamcommunity.com/profiles/76561199472399815

Attributes

profile_id
15

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

Setup.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Setup.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Setup.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Setup.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Setup.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Setup.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Setup.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Setup.exe

pid process

1832 Setup.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Setup.exe

pid process

1832 Setup.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Setup.exe

pid	process
1832	Setup.exe

pid	process
1832	Setup.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1832

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1832-54-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/1832-55-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-56-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-57-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-59-0x0000000077B50000-0x0000000077CD0000-memory.dmp

Filesize
1.5MB

Download
memory/1832-58-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-60-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-61-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-62-0x0000000000400000-0x0000000000B79000-memory.dmp

Filesize
7.5MB

Download
memory/1832-63-0x0000000077B50000-0x0000000077CD0000-memory.dmp

Filesize
1.5MB

Download