vidar | 50f8a3767b236fdf50e8c6f01f04bb1004c6c9161f301dbd3639ad83834d7d09

Analysis

max time kernel
126s
max time network
150s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-11-2022 07:52

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General

Target

Setup.exe
Size

381.1MB
MD5

919ea65f48fc29a9201a1acf50e641fb
SHA1

9381dd8e0af5e0bf065ab00dd557f4c2ebf7ae51
SHA256

50f8a3767b236fdf50e8c6f01f04bb1004c6c9161f301dbd3639ad83834d7d09
SHA512

e43fa9f97aa6760ac5bd1f4cdc177a1866574cff51dfde30f4a51fa51b63f1b6d3f6cc96d001122199297037a19a8100a76ca64224fcb99bc7c461148eea60b9
SSDEEP

98304:JrUPrkqIBapmyezTnKSkXdumkrjeqH+49WIIjHYpX+S:JrcI/yhSkXdZjG

Score

10^/10

vidar 1281 evasion stealer themida trojan

Malware Config

Extracted

Family

vidar

Version

54.9

Botnet

1281

https://t.me/dsjdsnxshjx

Attributes

profile_id
1281

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

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1584-55-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-56-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-57-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-59-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-58-0x0000000077130000-0x00000000772B0000-memory.dmp	themida
behavioral1/memory/1584-60-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-61-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-63-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-62-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida
behavioral1/memory/1584-64-0x0000000000E00000-0x00000000014D7000-memory.dmp	themida

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

1584 Setup.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Setup.exe

pid process

1584 Setup.exe

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

pid	process
1584	Setup.exe

pid	process
1584	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:1584

Network

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/1584-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

Filesize
8KB

Download
memory/1584-55-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-56-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-57-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-59-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-58-0x0000000077130000-0x00000000772B0000-memory.dmp

Filesize
1.5MB

Download
memory/1584-60-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-61-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-63-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-62-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-64-0x0000000000E00000-0x00000000014D7000-memory.dmp

Filesize
6.8MB

Download
memory/1584-65-0x0000000077130000-0x00000000772B0000-memory.dmp

Filesize
1.5MB

Download