vidar | dfcf45d97a5c1e596fd63b1b617779f6151d595fa4fbb330b5e570b6917a66fa

Analysis

max time kernel
164s
max time network
593s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-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 discovery evasion spyware 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

Loads dropped DLL 2 IoCs

Processes:

installerx64.exe

pid process

2040 installerx64.exe
2040 installerx64.exe
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

pid	process
2040	installerx64.exe
2040	installerx64.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2040-132-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-133-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-134-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-135-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-136-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-137-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-138-0x0000000000E00000-0x0000000001846000-memory.dmp	themida
behavioral2/memory/2040-139-0x0000000000E00000-0x0000000001846000-memory.dmp	themida

Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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:

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

2040 installerx64.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2140 2040 WerFault.exe installerx64.exe

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

pid	process
2040	installerx64.exe

pid	pid_target	process	target process
2140	2040	WerFault.exe	installerx64.exe

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:

installerx64.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	installerx64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	installerx64.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

installerx64.exe

pid process

2040 installerx64.exe
2040 installerx64.exe
2040 installerx64.exe
2040 installerx64.exe

pid	process
2040	installerx64.exe
2040	installerx64.exe
2040	installerx64.exe
2040	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
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1876
2⤵
- Program crash
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2040 -ip 2040
1⤵
PID:3392

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

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2040-138-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-135-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-136-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-137-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-132-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-139-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-140-0x0000000077690000-0x0000000077833000-memory.dmp

Filesize
1.6MB

Download
memory/2040-141-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2040-134-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-133-0x0000000000E00000-0x0000000001846000-memory.dmp

Filesize
10.3MB

Download
memory/2040-161-0x0000000077690000-0x0000000077833000-memory.dmp

Filesize
1.6MB

Download