vidar | 51c5d0be8f9b5fcab2c0561c1f7df429cfdf9ad0815acd9603ffa0439f6f5271

General

Target

Setup.exe
Size

3.0MB
MD5

c8f647f4e670426ce42b82a7ab6becb2
SHA1

d477236d1c0874d7d45718c4eff1ef7a8ae69344
SHA256

51c5d0be8f9b5fcab2c0561c1f7df429cfdf9ad0815acd9603ffa0439f6f5271
SHA512

0a0fc42f3437e7108627b02cabac9c43cf2dfff4d8de62780183699454e344ead0395fb945b99e7f2cb2d0b6057a2865c6031430ce580a640861f65ea5cabe56
SSDEEP

49152:faiyu1OZJxjqxxQ4tg+7lH5Q6y5QzQHHp/prL38pu+X5/LKLLPDM2FTDpIsOVUTg:SZu1OLZqf3rgh5QUnp13b4eFH02TG

Score

10^/10

vidar 8de874fe964a942b8bd50b84d393b6f8 evasion stealer themida trojan

Malware Config

Extracted

Family

vidar

Version

7.6

Botnet

8de874fe964a942b8bd50b84d393b6f8

C2

https://t.me/tvrugrats

https://steamcommunity.com/profiles/76561199627279110

Attributes

profile_id_v2
8de874fe964a942b8bd50b84d393b6f8

Signatures

Detect Vidar Stealer 9 IoCs

stealer

resource	yara_rule
behavioral1/memory/196-9-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-10-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-11-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-12-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-13-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-14-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-15-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-16-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7
behavioral1/memory/196-31-0x0000000000890000-0x00000000013C4000-memory.dmp	family_vidar_v7

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

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

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 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/196-0-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-9-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-6-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-10-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-11-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-12-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-13-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-14-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-15-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-16-0x0000000000890000-0x00000000013C4000-memory.dmp	themida
behavioral1/memory/196-31-0x0000000000890000-0x00000000013C4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
196	Setup.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
512	196	WerFault.exe	73

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
196	Setup.exe
196	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:196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 196 -s 2272
  2⤵
  - Program crash
  PID:512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/196-0-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-1-0x0000000073E90000-0x0000000074052000-memory.dmp

Filesize
1.8MB

Download
memory/196-3-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download
memory/196-4-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download
memory/196-2-0x0000000073E90000-0x0000000074052000-memory.dmp

Filesize
1.8MB

Download
memory/196-7-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download
memory/196-9-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-6-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-8-0x0000000077114000-0x0000000077115000-memory.dmp

Filesize
4KB

Download
memory/196-5-0x0000000073E90000-0x0000000074052000-memory.dmp

Filesize
1.8MB

Download
memory/196-10-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-11-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-12-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-13-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-14-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-15-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-16-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-31-0x0000000000890000-0x00000000013C4000-memory.dmp

Filesize
11.2MB

Download
memory/196-33-0x0000000073E90000-0x0000000074052000-memory.dmp

Filesize
1.8MB

Download
memory/196-34-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download
memory/196-35-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download
memory/196-36-0x0000000075610000-0x00000000756E0000-memory.dmp

Filesize
832KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads