vidar | dfcf45d97a5c1e596fd63b1b617779f6151d595fa4fbb330b5e570b6917a66fa

Analysis

max time kernel
194s
max time network
435s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 19:43

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General

Target

installerx64.exe
Size

706.6MB
MD5

41bf2ab4d931307596bca16b3eeaa204
SHA1

aeaceceaec0abaa4f020c948f504985e71b6f0bc
SHA256

10838acc353d1580f5e17ca6ffd33346f156a7c3f6c8a28151812ec553f0d3d1
SHA512

f3ae025a4a186422ee2a982b186e3843963292080d20504604131b9502462c360dd77e67306948665160c08a50d85b94191803649d90d68f419a315b3012f3a7
SSDEEP

98304:hrFpFpUSCAajXKzbNOpjafzC7ps1u6OLucZGUTQ8n6vtJjrNK9J:XCSCHCbNOgG7p7LPmP/4

Score

10^/10

vidar 1604 evasion stealer themida trojan

Malware Config

Extracted

Family

vidar

Version

55.9

Botnet

1604

https://t.me/misteryworldismyhome

https://t.me/montgomerywavesgetlucky

https://t.me/prokl3hfy

Attributes

profile_id
1604

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:

installerx64.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ installerx64.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	installerx64.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:

installerx64.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	installerx64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	installerx64.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1872-55-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-56-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-58-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-59-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-61-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-62-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-63-0x0000000001050000-0x0000000001A96000-memory.dmp	themida
behavioral1/memory/1872-64-0x0000000001050000-0x0000000001A96000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

installerx64.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA installerx64.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

installerx64.exe

pid process

1872 installerx64.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

installerx64.exe

pid process

1872 installerx64.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	installerx64.exe

pid	process
1872	installerx64.exe

pid	process
1872	installerx64.exe

C:\Users\Admin\AppData\Local\Temp\installerx64.exe
"C:\Users\Admin\AppData\Local\Temp\installerx64.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:1872

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/1872-54-0x0000000075531000-0x0000000075533000-memory.dmp

Filesize
8KB

Download
memory/1872-55-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-56-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-58-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-60-0x0000000077890000-0x0000000077A10000-memory.dmp

Filesize
1.5MB

Download
memory/1872-59-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-61-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-62-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-63-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download
memory/1872-64-0x0000000001050000-0x0000000001A96000-memory.dmp

Filesize
10.3MB

Download