vidar | ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a

Analysis

max time kernel
142s
max time network
145s
platform
windows7_x64
resource
win7-20220414-en
submitted
30-06-2022 18:26

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General

Target

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
Size

2.5MB
MD5

8b18d8fa4c4ac43666384fc4f6dae808
SHA1

88f5eab1250abe436a2f1d38c8912722ed153e95
SHA256

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a
SHA512

ae86fb730a53aa0c1f83a6ded454c99588d7740c2425359ef21721c2214246e31de2ef13ffdb74b547b7e56a04db1f37e0d24580628e0e04dfd9c26fa47e389c

Score

10^/10

vidar 781 discovery evasion spyware stealer suricata themida trojan

Malware Config

Extracted

Family

vidar

Version

35.8

Botnet

781

http://mine2021.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 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1808-56-0x0000000000400000-0x0000000000A88000-memory.dmp	family_vidar
behavioral1/memory/1808-57-0x0000000000400000-0x0000000000A88000-memory.dmp	family_vidar
behavioral1/memory/1808-58-0x0000000076FD0000-0x0000000077150000-memory.dmp	family_vidar
behavioral1/memory/1808-59-0x0000000000400000-0x0000000000A88000-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:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.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 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1808-55-0x0000000000400000-0x0000000000A88000-memory.dmp	themida
behavioral1/memory/1808-56-0x0000000000400000-0x0000000000A88000-memory.dmp	themida
behavioral1/memory/1808-57-0x0000000000400000-0x0000000000A88000-memory.dmp	themida
behavioral1/memory/1808-58-0x0000000076FD0000-0x0000000077150000-memory.dmp	themida
behavioral1/memory/1808-59-0x0000000000400000-0x0000000000A88000-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:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.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

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

Processes:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

pid process

1808 ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

flow	ioc
6	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:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

pid	process
1808	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
1808	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
1808	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
1808	ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe

C:\Users\Admin\AppData\Local\Temp\ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.exe
"C:\Users\Admin\AppData\Local\Temp\ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1808

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/1808-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1808-55-0x0000000000400000-0x0000000000A88000-memory.dmp

Filesize
6.5MB

Download
memory/1808-56-0x0000000000400000-0x0000000000A88000-memory.dmp

Filesize
6.5MB

Download
memory/1808-57-0x0000000000400000-0x0000000000A88000-memory.dmp

Filesize
6.5MB

Download
memory/1808-58-0x0000000076FD0000-0x0000000077150000-memory.dmp

Filesize
1.5MB

Download
memory/1808-59-0x0000000000400000-0x0000000000A88000-memory.dmp

Filesize
6.5MB

Download
memory/1808-60-0x0000000076FD0000-0x0000000077150000-memory.dmp

Filesize
1.5MB

Download