vidar | 21c6e4a8fffab45df1e5f7e6b01a5ef7fc116dd8979e4e84c789d3c77ecad1ed

General

Target
32c8eb8d27f4998b74b9dd16d925eac1.exe
Size 744KB
Sample211003-tztj1afeb2
SHA256 21c6e4a8fffab45df1e5f7e6b01a5ef7fc116dd8979e4e84c789d3c77ecad1ed
MD5 32c8eb8d27f4998b74b9dd16d925eac1
SHA1 dd16ef220f4ca1f0c9f52de60a0c047d6d017e0e
SHA512 976d43809f8468d420d2b3c8edf6fb26c997f0f32f3bd93c853709a70e4dc8f8429ae50e70f5d083b0e393a1c63709239b3a7adf66d3ee5578f861c0f21960d6
MD5 SHA1 SHA512

Score

10^/10

vidar 1008 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.1

Botnet

1008

C2

https://mas.to/@bardak1ho

Attributes

profile_id
1008

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/532-114-0x0000000000780000-0x0000000000854000-memory.dmp	family_vidar
behavioral2/memory/532-115-0x0000000000400000-0x00000000004D7000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.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

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	32c8eb8d27f4998b74b9dd16d925eac1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	32c8eb8d27f4998b74b9dd16d925eac1.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2188	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
680	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe
532	32c8eb8d27f4998b74b9dd16d925eac1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	680	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 4032	532	32c8eb8d27f4998b74b9dd16d925eac1.exe	68
PID 532 wrote to memory of 4032	532	32c8eb8d27f4998b74b9dd16d925eac1.exe	68
PID 532 wrote to memory of 4032	532	32c8eb8d27f4998b74b9dd16d925eac1.exe	68
PID 4032 wrote to memory of 680	4032	cmd.exe	70
PID 4032 wrote to memory of 680	4032	cmd.exe	70
PID 4032 wrote to memory of 680	4032	cmd.exe	70
PID 4032 wrote to memory of 2188	4032	cmd.exe	71
PID 4032 wrote to memory of 2188	4032	cmd.exe	71
PID 4032 wrote to memory of 2188	4032	cmd.exe	71

C:\Users\Admin\AppData\Local\Temp\32c8eb8d27f4998b74b9dd16d925eac1.exe
"C:\Users\Admin\AppData\Local\Temp\32c8eb8d27f4998b74b9dd16d925eac1.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 32c8eb8d27f4998b74b9dd16d925eac1.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\32c8eb8d27f4998b74b9dd16d925eac1.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4032
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 32c8eb8d27f4998b74b9dd16d925eac1.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:680
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:2188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/532-114-0x0000000000780000-0x0000000000854000-memory.dmp

Download

memory/532-115-0x0000000000400000-0x00000000004D7000-memory.dmp