vidar | a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc

General

Target

a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe
Size

404KB
MD5

3c9241d0ce97c159d6cfaa49f602fafd
SHA1

3a0320d338544496cb2ed6952d52e740c7f25d03
SHA256

a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc
SHA512

e7a86d0e92be6c741d53e505d712034f24cc9951fbb0015e6c46b97399eaa358c216de63930728fc1ca7edaaf3ceca3ed1dcab0e1c7bf0c384ba78d22615e9d4
SSDEEP

12288:Dpn81p29d9YRhTe4kashZFxfNvJKXZYDJEO:1Sp29d9YRhi4kasRxfNxfJt

Score

10^/10

vidar 514d77849a01ff8ab7dd99d5f0a2e19e credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

514d77849a01ff8ab7dd99d5f0a2e19e

C2

https://t.me/jamsemlg

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 15 IoCs

stealer

resource	yara_rule
behavioral2/memory/3016-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-28-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-29-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-38-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-39-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-47-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-48-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-64-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-65-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-89-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-90-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-97-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3016-98-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Loads dropped DLL 2 IoCs

pid	Process
3016	RegAsm.exe
3016	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 448 set thread context of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3016	RegAsm.exe
3016	RegAsm.exe
3016	RegAsm.exe
3016	RegAsm.exe
3016	RegAsm.exe
3016	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3016	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 4584	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	86
PID 448 wrote to memory of 4584	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	86
PID 448 wrote to memory of 4584	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	86
PID 448 wrote to memory of 2880	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	87
PID 448 wrote to memory of 2880	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	87
PID 448 wrote to memory of 2880	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	87
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88
PID 448 wrote to memory of 3016	448	a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe	88

C:\Users\Admin\AppData\Local\Temp\a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe
"C:\Users\Admin\AppData\Local\Temp\a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2880
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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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/448-23-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/448-1-0x00000000009D0000-0x0000000000A3A000-memory.dmp

Filesize
424KB

Download
memory/448-11-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/448-0-0x0000000074EFE000-0x0000000074EFF000-memory.dmp

Filesize
4KB

Download
memory/3016-38-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-48-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-29-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-30-0x0000000022540000-0x000000002279F000-memory.dmp

Filesize
2.4MB

Download
memory/3016-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-39-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-47-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-28-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-64-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-65-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-89-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-90-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-97-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3016-98-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads