vidar | 36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758

Analysis

max time kernel
162s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
20-03-2022 01:29

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General

Target

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
Size

2.6MB
MD5

79c8e69402e047f1eea2be4bf214d67a
SHA1

f5ef9b27be43173ca4caef53b5c6c0a87a3a29b7
SHA256

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758
SHA512

b866367d6af189037cc464aa8e5b221613d7726369c2a37893a1ea51a3e75c5865a128c49470f74732936216c9263dbcf22a18b0698ba1ec42be7c65f37da435

Score

10^/10

vidar 781 discovery evasion spyware stealer suricata themida trojan

Malware Config

Extracted

Family

vidar

Version

35.7

Botnet

781

http://atrainshop.com/

Attributes

profile_id
781

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1220-135-0x0000000000400000-0x0000000000ABF000-memory.dmp	family_vidar
behavioral2/memory/1220-136-0x0000000000400000-0x0000000000ABF000-memory.dmp	family_vidar

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:

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/1220-134-0x0000000000400000-0x0000000000ABF000-memory.dmp	themida
behavioral2/memory/1220-135-0x0000000000400000-0x0000000000ABF000-memory.dmp	themida
behavioral2/memory/1220-136-0x0000000000400000-0x0000000000ABF000-memory.dmp	themida

Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

50 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

pid process

1220 36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

flow	ioc
50	ip-api.com

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

pid	process
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
1220	36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe

C:\Users\Admin\AppData\Local\Temp\36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe
"C:\Users\Admin\AppData\Local\Temp\36e878979142564fabe92a87322ec15148da06253cd3d210871d11f859d13758.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1220

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/1220-134-0x0000000000400000-0x0000000000ABF000-memory.dmp

Filesize
6.7MB

Download
memory/1220-135-0x0000000000400000-0x0000000000ABF000-memory.dmp

Filesize
6.7MB

Download
memory/1220-136-0x0000000000400000-0x0000000000ABF000-memory.dmp

Filesize
6.7MB

Download
memory/1220-137-0x0000000077C00000-0x0000000077DA3000-memory.dmp

Filesize
1.6MB

Download