vidar | b0b5c0153c7a4e5e1fce6204f5e8e82f09afb7b720b4d31c45db95f6af83f2ef

General

Target
24a153750bd7f50c29bf2a0dca08baff.exe
Size 734KB
Sample211218-b89cpseda4
SHA256 b0b5c0153c7a4e5e1fce6204f5e8e82f09afb7b720b4d31c45db95f6af83f2ef
MD5 24a153750bd7f50c29bf2a0dca08baff
SHA1 2f82a4afe6600f7fbcca2aed7cdbb2a77db0dae0
SHA512 997522b665c480593295926ef635018f7f2cb92a2f31c0d906453fc522f8b732acf7b094dce166bcb95615c8a29f593dfb7542acec8ad25d049b5b6786cd7dd0
MD5 SHA1 SHA512

Score

10^/10

vidar 1081 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

49.1

Botnet

1081

C2

https://noc.social/@sergeev46
https://c.im/@sergeev47

Attributes

profile_id
1081

Signatures

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1576-56-0x0000000000540000-0x0000000000619000-memory.dmp	family_vidar
behavioral1/memory/1576-57-0x0000000000400000-0x0000000000539000-memory.dmp	family_vidar

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
752	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.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	24a153750bd7f50c29bf2a0dca08baff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	24a153750bd7f50c29bf2a0dca08baff.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1656	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1092	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.exe
1576	24a153750bd7f50c29bf2a0dca08baff.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1092	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 752	1576	24a153750bd7f50c29bf2a0dca08baff.exe	29
PID 1576 wrote to memory of 752	1576	24a153750bd7f50c29bf2a0dca08baff.exe	29
PID 1576 wrote to memory of 752	1576	24a153750bd7f50c29bf2a0dca08baff.exe	29
PID 1576 wrote to memory of 752	1576	24a153750bd7f50c29bf2a0dca08baff.exe	29
PID 752 wrote to memory of 1092	752	cmd.exe	31
PID 752 wrote to memory of 1092	752	cmd.exe	31
PID 752 wrote to memory of 1092	752	cmd.exe	31
PID 752 wrote to memory of 1092	752	cmd.exe	31
PID 752 wrote to memory of 1656	752	cmd.exe	33
PID 752 wrote to memory of 1656	752	cmd.exe	33
PID 752 wrote to memory of 1656	752	cmd.exe	33
PID 752 wrote to memory of 1656	752	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\24a153750bd7f50c29bf2a0dca08baff.exe
"C:\Users\Admin\AppData\Local\Temp\24a153750bd7f50c29bf2a0dca08baff.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 24a153750bd7f50c29bf2a0dca08baff.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\24a153750bd7f50c29bf2a0dca08baff.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 24a153750bd7f50c29bf2a0dca08baff.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1092
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:1656

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/1576-54-0x000000000068B000-0x0000000000708000-memory.dmp

Download

memory/1576-57-0x0000000000400000-0x0000000000539000-memory.dmp

Download

memory/1576-56-0x0000000000540000-0x0000000000619000-memory.dmp

Download

memory/1576-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads