vidar | cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127

General

Target

cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe
Size

413KB
MD5

92c66c140509b75bae23f055d427afb4
SHA1

1ecc289391ad3fcb89b3e84cbb15944a10444ae0
SHA256

cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127
SHA512

0b8c7e30af4f74ba7a49f106388172c025a008d0f7de13b88c0340ab0ac9b3611d66429257d65dee5459e5aebe78f472e1aa3e687009365de3e36ff166d4366d
SSDEEP

6144:rBrkDIY0uBcDXK+KgEqBG7nkmfVRSG5rO4lNhCV6JRIc+9dIbCtWeJATEO:oNgYLkm9RSYbNhu6DS9dIbufWEO

Score

10^/10

vidar d80be45a1eb6454ca916f92c36ebf67d discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/4700-4-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-22-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-23-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-39-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4700-40-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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 2084 set thread context of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe
4700	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74
PID 2084 wrote to memory of 4700	2084	cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe	74

C:\Users\Admin\AppData\Local\Temp\cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe
"C:\Users\Admin\AppData\Local\Temp\cc73160c4af628fe13b6c3e83e06c5565ff67818b4148c13025786779bd4e127.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2084-0-0x000000007370E000-0x000000007370F000-memory.dmp

Filesize
4KB

Download
memory/2084-1-0x0000000000B40000-0x0000000000BA8000-memory.dmp

Filesize
416KB

Download
memory/2084-2-0x0000000073700000-0x0000000073DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-8-0x0000000073700000-0x0000000073DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-13-0x0000000073700000-0x0000000073DEE000-memory.dmp

Filesize
6.9MB

Download
memory/4700-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-4-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-22-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-23-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-24-0x00000000228E0000-0x0000000022B3F000-memory.dmp

Filesize
2.4MB

Download
memory/4700-39-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4700-40-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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