vidar | 942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b

General

Target

942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe
Size

413KB
MD5

dfd320ab72a577bcadcfd172f92d17b2
SHA1

93050cf3a0756713427d95fd588a471ad2b5c1df
SHA256

942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b
SHA512

0b59ae6d00831a7c897ababc7bb2b0a73e91e4998ea61451c26dbc197dac14c6cc78d375d643f59c845f796ce9ec55138cc9b361ef6d503db358981645878444
SSDEEP

12288:lIpGy9kwbUhpXP22LFVazExv/EIARvVB4EO:6/9RAh922XazExEvVOt

Score

10^/10

vidar 7fb8096dba7218243f8f6f7a994751d3 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

7fb8096dba7218243f8f6f7a994751d3

C2

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 13 IoCs

stealer

resource	yara_rule
behavioral2/memory/4176-4-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-11-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-20-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-21-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-37-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-38-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-54-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-55-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-79-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-80-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-87-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4176-88-0x0000000000400000-0x0000000000676000-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Loads dropped DLL 2 IoCs

pid	Process
4176	RegAsm.exe
4176	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 2944 set thread context of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83

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	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4176	RegAsm.exe
4176	RegAsm.exe
4176	RegAsm.exe
4176	RegAsm.exe
4176	RegAsm.exe
4176	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4176	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83
PID 2944 wrote to memory of 4176	2944	942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe	83

C:\Users\Admin\AppData\Local\Temp\942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe
"C:\Users\Admin\AppData\Local\Temp\942b0ba35652330e8701f18d7208e4ae9773d71d7e464375f0366c576e8d196b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- 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:4176

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\FCAAAAFBKF.exe

Filesize
13B

MD5
aee9784c03b80d38d3271cde2b252b8d

SHA1
e5fd9aa24c9417e7332e6f25936ae2a6ec8f1524

SHA256
27c2ccd962c2b8dccb52fe3688ab236f186f7a41fd57d810478712048e9ad3f8

SHA512
a83c2f678a77228f5c7f2fb61a723217892b8422913739d1c65cb97701c341361eeee617e9d050a86b552db4dd87b18cfb94443977a75a5862171346609e9472

Download Submit
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/2944-7-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/2944-6-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/2944-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2944-1-0x00000000004E0000-0x0000000000548000-memory.dmp

Filesize
416KB

Download
memory/2944-2-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4176-20-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-4-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-22-0x0000000022810000-0x0000000022A6F000-memory.dmp

Filesize
2.4MB

Download
memory/4176-37-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-38-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-54-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-55-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-21-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-79-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-80-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-87-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-88-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4176-11-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads