vidar | 2453f0f1232d73d823f5bd2dadf48fb18cff82604d1613d1707ae6fb451743e4

Analysis

max time kernel
94s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
23-03-2023 15:57

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General

Target

file.exe
Size

5.4MB
MD5

0590b2409eb38418e064b552945b3f91
SHA1

ddf8f28eb904f387dd9430082fc8abac98c61efa
SHA256

2453f0f1232d73d823f5bd2dadf48fb18cff82604d1613d1707ae6fb451743e4
SHA512

d59559505434143924e56f4e3e82a1f42eea0fc7a8ffa226d9fc2e6c292e8f2879260326c8e2ac474eb1cf310c52877ae9ce0124b8245eb998d2dbcf2db698c2
SSDEEP

98304:bWFfqP11weDNI1HxzWga8eINvg/Tig3cxq1p0rj/KWCdo0qZIEBdBH1:CBqHweDNI1HxioZarigswpCC+TP

Score

10^/10

vidar 20f95c4f85151b21c48a8766fbd2d32d discovery evasion spyware stealer themida trojan vmprotect

Malware Config

Extracted

Family

vidar

Version

3.1

Botnet

20f95c4f85151b21c48a8766fbd2d32d

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes

profile_id_v2
20f95c4f85151b21c48a8766fbd2d32d
user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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:

file.exe

description ioc process

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

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

file.exe

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

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation file.exe
Loads dropped DLL 2 IoCs

Processes:

file.exe

pid process

3064 file.exe
3064 file.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
3064	file.exe
3064	file.exe

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3064-133-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-140-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-145-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-146-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-147-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-148-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-192-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-234-0x0000000000B80000-0x0000000001660000-memory.dmp	themida
behavioral2/memory/3064-235-0x0000000000B80000-0x0000000001660000-memory.dmp	themida

VMProtect packed file 9 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral2/memory/3064-133-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-140-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-145-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-146-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-147-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-148-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-192-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-234-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect
behavioral2/memory/3064-235-0x0000000000B80000-0x0000000001660000-memory.dmp	vmprotect

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:

file.exe

description ioc process

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

Processes:

file.exe

pid process

3064 file.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

pid	process
3064	file.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:

file.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4992 timeout.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

file.exe

pid process

3064 file.exe
3064 file.exe
3064 file.exe
3064 file.exe
3064 file.exe
3064 file.exe
3064 file.exe
3064 file.exe

pid	process
4992	timeout.exe

pid	process
3064	file.exe
3064	file.exe
3064	file.exe
3064	file.exe
3064	file.exe
3064	file.exe
3064	file.exe
3064	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.execmd.exe

description	pid	process	target process
PID 3064 wrote to memory of 4080	3064	file.exe	cmd.exe
PID 3064 wrote to memory of 4080	3064	file.exe	cmd.exe
PID 3064 wrote to memory of 4080	3064	file.exe	cmd.exe
PID 4080 wrote to memory of 4992	4080	cmd.exe	timeout.exe
PID 4080 wrote to memory of 4992	4080	cmd.exe	timeout.exe
PID 4080 wrote to memory of 4992	4080	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4080

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:4992

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/3064-145-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-146-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-137-0x0000000001A10000-0x0000000001A11000-memory.dmp

Filesize
4KB

Download
memory/3064-138-0x0000000001A20000-0x0000000001A21000-memory.dmp

Filesize
4KB

Download
memory/3064-139-0x0000000001A30000-0x0000000001A31000-memory.dmp

Filesize
4KB

Download
memory/3064-140-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-133-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-136-0x0000000001A00000-0x0000000001A01000-memory.dmp

Filesize
4KB

Download
memory/3064-147-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-148-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-158-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3064-135-0x00000000017E0000-0x00000000017E1000-memory.dmp

Filesize
4KB

Download
memory/3064-134-0x00000000016F0000-0x00000000016F1000-memory.dmp

Filesize
4KB

Download
memory/3064-192-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-234-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download
memory/3064-235-0x0000000000B80000-0x0000000001660000-memory.dmp

Filesize
10.9MB

Download