vidar | 6cca494aed33d4180ead232a78ace308bc52c627b7159d8427484c5d078a3c06

General

Target

Set-up.exe
Size

780.5MB
MD5

d6e7ee8a8ede36b1c567757ddfd26bcc
SHA1

954e97bb4ff2ba7a9b6d1fc8df18ac14aa62a27f
SHA256

6ccf8ae4a36d3074fb72419a02a72016d7e7aad3e577c572d6aedb4039cce6bb
SHA512

b46252220de247922ff51ec9b462d109b5d443d6f4502587311f5a85c3461cd3ef0c7dde9f337252515d7865d14bdec7ca5348770a77ada44f92192260c02838
SSDEEP

196608:pzXymwOshGs9d1aUNCKa0k8DK8KDcaqJAX:1XlwVldZCKanGK8QcDAX

Score

10^/10

vidar 2c447a3a3ad43bca51b075083f951002 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

2c447a3a3ad43bca51b075083f951002

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 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/1296-7-0x0000000000060000-0x0000000000CB9000-memory.dmp	family_vidar_v7
behavioral2/memory/1296-53-0x0000000000060000-0x0000000000CB9000-memory.dmp	family_vidar_v7
behavioral2/memory/1296-118-0x0000000000060000-0x0000000000CB9000-memory.dmp	family_vidar_v7

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

Loads dropped DLL 2 IoCs

pid	Process
1296	Set-up.exe
1296	Set-up.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
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 3 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	Set-up.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	Set-up.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Set-up.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2036	timeout.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe
1296	Set-up.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 564	1296	Set-up.exe	79
PID 1296 wrote to memory of 564	1296	Set-up.exe	79
PID 1296 wrote to memory of 564	1296	Set-up.exe	79
PID 564 wrote to memory of 2036	564	cmd.exe	81
PID 564 wrote to memory of 2036	564	cmd.exe	81
PID 564 wrote to memory of 2036	564	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\Set-up.exe
"C:\Users\Admin\AppData\Local\Temp\Set-up.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GIEBGIIJDGHC" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:564
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2036

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

2

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

Replay Monitor

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Downloads

C:\ProgramData\GIEBGIIJDGHC\AAAAKJ

Filesize
64KB

MD5
a30d2f3254d9e3a05597fce324b43ba7

SHA1
45063372dccdcc0ac69c2317c761e7e53e0341fe

SHA256
5876f829b023100ca0580a325df22804dc7acdc46eb574b70926225c2f06e04e

SHA512
b17653c9ad5fd6d83310f7cf3feef46221c2c41909eb00accb2d52921f81eebad949f8fcdd5bbfdbc7c08c982d20b65d37f13aa85e214202f1d370d0ed7fcafd

Download Submit
C:\ProgramData\GIEBGIIJDGHC\IDBKFH

Filesize
512KB

MD5
59071590099d21dd439896592338bf95

SHA1
6a521e1d2a632c26e53b83d2cc4b0edecfc1e68c

SHA256
07854d2fef297a06ba81685e660c332de36d5d18d546927d30daad6d7fda1541

SHA512
eedb6cadbceb2c991fc6f68dccb80463b3f660c5358acd7d705398ae2e3df2b4327f0f6c6746486848bd2992b379776483a98063ae96edb45877bb0314874668

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/1296-7-0x0000000000060000-0x0000000000CB9000-memory.dmp

Filesize
12.3MB

Download
memory/1296-46-0x00000000002D0000-0x00000000005FF000-memory.dmp

Filesize
3.2MB

Download
memory/1296-53-0x0000000000060000-0x0000000000CB9000-memory.dmp

Filesize
12.3MB

Download
memory/1296-16-0x0000000034CD0000-0x0000000034F2F000-memory.dmp

Filesize
2.4MB

Download
memory/1296-0-0x0000000000060000-0x0000000000CB9000-memory.dmp

Filesize
12.3MB

Download
memory/1296-2-0x00000000036C0000-0x00000000036C1000-memory.dmp

Filesize
4KB

Download
memory/1296-1-0x00000000002D0000-0x00000000005FF000-memory.dmp

Filesize
3.2MB

Download
memory/1296-118-0x0000000000060000-0x0000000000CB9000-memory.dmp

Filesize
12.3MB

Download
memory/1296-119-0x00000000002D0000-0x00000000005FF000-memory.dmp

Filesize
3.2MB

Download

Analysis

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