vidar | 4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094

Analysis

max time kernel
106s
max time network
108s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
20-07-2022 17:51

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General

Target

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
Size

1.9MB
MD5

8bc1427b468c1d55db19c890800d9958
SHA1

7a7af4c4690afd3850ee4fba61331f2a15dcb7a3
SHA256

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094
SHA512

962ca67727de9781f754e05299b93896089b42c57f31dd2b73ed6494f7bec71e3a8af5c1fd5d02c2fd08053843f99f64f57648a399a64e286bc39cced52639ba

Score

10^/10

vidar 223 discovery evasion spyware stealer trojan

Malware Config

Extracted

Family

vidar

Version

Botnet

223

http://klegrandlichgrum.com/

Attributes

profile_id
223

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:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/908-58-0x0000000000400000-0x0000000000846000-memory.dmp	family_vidar
behavioral1/memory/908-59-0x0000000000400000-0x0000000000846000-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:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Wine	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.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
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:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.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:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

pid process

908 4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.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:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

pid	process
908	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
908	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
908	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
908	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
908	4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe

C:\Users\Admin\AppData\Local\Temp\4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe
"C:\Users\Admin\AppData\Local\Temp\4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:908

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/908-54-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/908-55-0x0000000000400000-0x0000000000846000-memory.dmp

Filesize
4.3MB

Download
memory/908-57-0x0000000077170000-0x00000000772F0000-memory.dmp

Filesize
1.5MB

Download
memory/908-58-0x0000000000400000-0x0000000000846000-memory.dmp

Filesize
4.3MB

Download
memory/908-59-0x0000000000400000-0x0000000000846000-memory.dmp

Filesize
4.3MB

Download
memory/908-60-0x0000000077170000-0x00000000772F0000-memory.dmp

Filesize
1.5MB

Download