vidar | a07bcdd42890c8ceba1f103dd382f977f326f646b9361528ce6eb89cbbeabce5

General

Target

file.exe
Size

325KB
MD5

91dcf98a1a0b188cbce61dc0b02af908
SHA1

44dc2cd9ffd68e66309e03297aeac6e07a102e2c
SHA256

a07bcdd42890c8ceba1f103dd382f977f326f646b9361528ce6eb89cbbeabce5
SHA512

3c7ac8138ad9a7b6123dcd6adfa5c8986740c7bbc2d7c89abdf928f05b12c9c8b05939a84a07f71aff595659b3266bb3f730e49b6aa29267d3dcc6c2072a11cb
SSDEEP

6144:ylF/Ld/H3e07VGl8SA1p5/DNlSnhNoxI5YTsP4Ha:ylZp/H3RcrAHdEmG5OP

Score

10^/10

vidar 937 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

55.7

Botnet

937

C2

https://t.me/deadftx

https://www.ultimate-guitar.com/u/smbfupkuhrgc1

Attributes

profile_id
937

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:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.exe
Loads dropped DLL 2 IoCs

Processes:

file.exe

pid process

1768 file.exe
1768 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
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

748 1768 WerFault.exe file.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
1768	file.exe
1768	file.exe

pid	pid_target	process	target process
748	1768	WerFault.exe	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

2496 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

file.exe

pid process

1768 file.exe
1768 file.exe

pid	process
2496	timeout.exe

pid	process
1768	file.exe
1768	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.execmd.exe

description	pid	process	target process
PID 1768 wrote to memory of 4180	1768	file.exe	cmd.exe
PID 1768 wrote to memory of 4180	1768	file.exe	cmd.exe
PID 1768 wrote to memory of 4180	1768	file.exe	cmd.exe
PID 4180 wrote to memory of 2496	4180	cmd.exe	timeout.exe
PID 4180 wrote to memory of 2496	4180	cmd.exe	timeout.exe
PID 4180 wrote to memory of 2496	4180	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1768

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:4180

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:2496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 2000
2⤵
- Program crash
PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1768 -ip 1768
1⤵
PID:1644

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

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/1768-132-0x00000000008AD000-0x00000000008DA000-memory.dmp

Filesize
180KB

Download
memory/1768-133-0x00000000025A0000-0x00000000025EA000-memory.dmp

Filesize
296KB

Download
memory/1768-134-0x0000000000400000-0x0000000000854000-memory.dmp

Filesize
4.3MB

Download
memory/1768-135-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1768-157-0x00000000008AD000-0x00000000008DA000-memory.dmp

Filesize
180KB

Download
memory/1768-158-0x0000000000400000-0x0000000000854000-memory.dmp

Filesize
4.3MB

Download
memory/2496-156-0x0000000000000000-mapping.dmp

Download
memory/4180-155-0x0000000000000000-mapping.dmp

Download

Analysis

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