vidar | a831a3ead1f64d951fadcd5a15cf14e86f9b6b4d418f5fdb6e28acbe7d90264a

General

Target

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
Size

426KB
MD5

8007511dfd5ce8407f5dd7cbf47ded88
SHA1

36740f63336dde0d4b1960107f7b25ab17969852
SHA256

a831a3ead1f64d951fadcd5a15cf14e86f9b6b4d418f5fdb6e28acbe7d90264a
SHA512

1c868feb936d37656bf8e2353e0120d5d4d1f36395ca3043ff4c308d2cf47cce1dae2384b75f8b73b95643264e3aba64423fd227b6998cefda229dbce035ae2b
SSDEEP

12288:yEiSWvHCOGdMFkXqvoX6RR0TCtyYduHNI:YzvHCRMFkUoqRR0TCAYdE

Score

10^/10

vidar 14 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

1.5

Botnet

14

C2

https://t.me/dahuasecurit

https://steamcommunity.com/profiles/76561199441999914

Attributes

profile_id
14

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

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:

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

Loads dropped DLL 2 IoCs

Processes:

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

pid process

4440 A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
4440 A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.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
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3380 4440 WerFault.exe A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

pid	process
4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

pid	pid_target	process	target process
3380	4440	WerFault.exe	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.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:

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4296 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

pid process

4440 A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
4440 A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

pid	process
4296	timeout.exe

pid	process
4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.execmd.exe

description	pid	process	target process
PID 4440 wrote to memory of 2632	4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe	cmd.exe
PID 4440 wrote to memory of 2632	4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe	cmd.exe
PID 4440 wrote to memory of 2632	4440	A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe	cmd.exe
PID 2632 wrote to memory of 4296	2632	cmd.exe	timeout.exe
PID 2632 wrote to memory of 4296	2632	cmd.exe	timeout.exe
PID 2632 wrote to memory of 4296	2632	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe
"C:\Users\Admin\AppData\Local\Temp\A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4440

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\A831A3EAD1F64D951FADCD5A15CF14E86F9B6B4D418F5.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2632

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 1876
2⤵
- Program crash
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4440 -ip 4440
1⤵
PID:3992

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\mozglue.dll
Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll
Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/2632-158-0x0000000000000000-mapping.dmp

Download
memory/4296-159-0x0000000000000000-mapping.dmp

Download
memory/4440-132-0x000000000071E000-0x000000000074F000-memory.dmp

Filesize
196KB

Download
memory/4440-133-0x00000000021E0000-0x0000000002237000-memory.dmp

Filesize
348KB

Download
memory/4440-134-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/4440-135-0x000000000071E000-0x000000000074F000-memory.dmp

Filesize
196KB

Download
memory/4440-136-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/4440-137-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/4440-160-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads