vidar | 96357fd4f3d7c2e7af393c2c9f2319b7a4474ba3b6cb731456b3f146bb8c0beb

Resubmissions

06-09-2022 13:50

220906-q5hg5sbadm 10

17-08-2022 16:17

220817-trkl5ahhdj 9

25-07-2022 23:23

220725-3dd2vsfch6 9

Analysis

max time kernel
111s
max time network
129s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-09-2022 13:50

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General

Target

Setup/Setup.exe
Size

385.9MB
MD5

0cc8c8d79c0eb8352305dc80d4c7d28a
SHA1

e9b479a3f4b33d3ebcc41d21584fd7abc26d28e0
SHA256

1f312cb92e5c7cc484f5c343efd701d8bb750a66be308f6aa863632a4c4a198b
SHA512

0d0e541291bc3538d5492edb4867861ec1213167430ed0c5537d08e66d834a20a67d0cd8c839b81b0de7d6a9c3c45a661c6d7d178885cd73da7cb529408c15e3
SSDEEP

196608:VyNOITMCu3NV65LeRg6HOHRyr8CjrESz+SEdaHB:VaOyMxdw5L+qvAESzlx

Score

10^/10

vidar 1281 evasion stealer themida trojan

Malware Config

Extracted

Family

vidar

Version

53.3

Botnet

1281

http://185.53.46.199:80

http://77.75.230.119:80

http://5.252.23.43:80

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 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/980-55-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-56-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-61-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-62-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-63-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-64-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-65-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-66-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-67-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-69-0x00000000003D0000-0x0000000000FF1000-memory.dmp	themida
behavioral1/memory/980-70-0x00000000003D0000-0x0000000000FF1000-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

980 Setup.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Setup.exe

pid process

980 Setup.exe
980 Setup.exe

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

pid	process
980	Setup.exe

pid	process
980	Setup.exe
980	Setup.exe

C:\Users\Admin\AppData\Local\Temp\Setup\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup\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:980

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/980-54-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/980-55-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-56-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-61-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-62-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-63-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-64-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-65-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-66-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-68-0x0000000077C50000-0x0000000077DD0000-memory.dmp

Filesize
1.5MB

Download
memory/980-67-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-69-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download
memory/980-70-0x00000000003D0000-0x0000000000FF1000-memory.dmp

Filesize
12.1MB

Download