vidar | aa2b5d5f5e91f673c6ad75dfdf35c33ebda273b5ca96d5d4897cb791ba23d16a

Analysis

max time kernel
138s
max time network
192s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 17:23

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General

Target
file.exe
Size 340KB
Sample221011-vx44dsfda3
SHA256 aa2b5d5f5e91f673c6ad75dfdf35c33ebda273b5ca96d5d4897cb791ba23d16a
MD5 9f244d6da7f20c0b8b0deed3fb52b6e0
SHA1 6bf3b82c6c7027633fb99e00f7aba41e5dbf9b25
SHA512 3cd384ff19f35e58dfa3ebe0fe48058cb258de001d7c7defb10dc2637744f98092e4b4875dacd9c95ea3909506192cd8f7c68de1d54b2707f4e7ada17a251bc0
SSDEEP 6144:CcRDLScK8GVnOaxEuZxl5gdBAV7NGCuUMm/SQ4j:CcRDJKjnOCLl5gdyiCui+j
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 1703 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

1703

https://t.me/truewallets
https://mas.to/@zara99
http://116.203.10.3:80

Attributes

profile_id
1703

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	file.exe

Loads dropped DLL 2 IoCs

pid	Process
1696	file.exe
1696	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

pid	pid_target	Process	procid_target
1752	1696	WerFault.exe	79

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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2724	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
5044	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1696	file.exe
1696	file.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5044	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1404	1696	file.exe	82
PID 1696 wrote to memory of 1404	1696	file.exe	82
PID 1696 wrote to memory of 1404	1696	file.exe	82
PID 1404 wrote to memory of 5044	1404	cmd.exe	84
PID 1404 wrote to memory of 5044	1404	cmd.exe	84
PID 1404 wrote to memory of 5044	1404	cmd.exe	84
PID 1404 wrote to memory of 2724	1404	cmd.exe	88
PID 1404 wrote to memory of 2724	1404	cmd.exe	88
PID 1404 wrote to memory of 2724	1404	cmd.exe	88

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:1696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" C/c taskkill /im file.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & del C:\PrograData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1404
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im file.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5044
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:2724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 1948
  2⤵
  - Program crash
  PID:1752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1696 -ip 1696
1⤵
PID:2796

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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memory/1696-135-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/1696-132-0x00000000005ED000-0x000000000061D000-memory.dmp

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memory/1696-134-0x0000000000400000-0x00000000005B3000-memory.dmp

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memory/1696-133-0x00000000022F0000-0x0000000002344000-memory.dmp

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memory/1696-157-0x0000000000400000-0x00000000005B3000-memory.dmp

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memory/1696-159-0x00000000005ED000-0x000000000061D000-memory.dmp

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memory/1696-160-0x00000000022F0000-0x0000000002344000-memory.dmp

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memory/1696-161-0x0000000000400000-0x00000000005B3000-memory.dmp

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