vidar | 2906d8c2aedf301e251463fb93aaafcc0dd724536c78a108c8d135c221279220

General

Target
0db36fb815c659d43624bc706237bf1f.exe
Size 3.0MB
Sample211008-ej3emsdbd2
SHA256 2906d8c2aedf301e251463fb93aaafcc0dd724536c78a108c8d135c221279220
MD5 0db36fb815c659d43624bc706237bf1f
SHA1 fb794abf903701901236f0881f825b5a7f8f52d5
SHA512 dc404700bcbade3eb2749b98df9297b2ec7ec331be8bac83e817172c54b371b583d484b6eef03fb81e0a4ba61d6f5fea3e3aa347bc44a3a45211ce3b1d6e22ef
MD5 SHA1 SHA512

Score

10^/10

vidar 828 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.2

Botnet

828

C2

https://mas.to/@serg4325

Attributes

profile_id
828

Signatures

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

Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/1068-120-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral2/memory/1068-121-0x00000000004A195D-mapping.dmp	family_vidar
behavioral2/memory/1068-122-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 808 set thread context of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74

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	0db36fb815c659d43624bc706237bf1f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0db36fb815c659d43624bc706237bf1f.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2288	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1688	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe
1068	0db36fb815c659d43624bc706237bf1f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	taskkill.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2640	808	0db36fb815c659d43624bc706237bf1f.exe	73
PID 808 wrote to memory of 2640	808	0db36fb815c659d43624bc706237bf1f.exe	73
PID 808 wrote to memory of 2640	808	0db36fb815c659d43624bc706237bf1f.exe	73
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 808 wrote to memory of 1068	808	0db36fb815c659d43624bc706237bf1f.exe	74
PID 1068 wrote to memory of 1668	1068	0db36fb815c659d43624bc706237bf1f.exe	75
PID 1068 wrote to memory of 1668	1068	0db36fb815c659d43624bc706237bf1f.exe	75
PID 1068 wrote to memory of 1668	1068	0db36fb815c659d43624bc706237bf1f.exe	75
PID 1668 wrote to memory of 1688	1668	cmd.exe	77
PID 1668 wrote to memory of 1688	1668	cmd.exe	77
PID 1668 wrote to memory of 1688	1668	cmd.exe	77
PID 1668 wrote to memory of 2288	1668	cmd.exe	79
PID 1668 wrote to memory of 2288	1668	cmd.exe	79
PID 1668 wrote to memory of 2288	1668	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe
"C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe
  C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe
  2⤵
  PID:2640
- C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe
  C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im 0db36fb815c659d43624bc706237bf1f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\0db36fb815c659d43624bc706237bf1f.exe" & del C:\ProgramData\*.dll & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1668
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im 0db36fb815c659d43624bc706237bf1f.exe /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1688
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:2288

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/808-118-0x0000000005330000-0x0000000005331000-memory.dmp

Download

memory/808-114-0x00000000006E0000-0x00000000006E1000-memory.dmp

Download

memory/808-119-0x0000000005940000-0x0000000005941000-memory.dmp

Download

memory/808-117-0x0000000002C50000-0x0000000002C51000-memory.dmp

Download

memory/808-116-0x00000000051E0000-0x00000000051E1000-memory.dmp

Download

memory/1068-120-0x0000000000400000-0x00000000004D9000-memory.dmp

Download

memory/1068-122-0x0000000000400000-0x00000000004D9000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads