vidar | 68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8

General

Target

68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe
Size

413KB
MD5

a463e516041f4bc84f03bc8fe2b643dd
SHA1

5a3ec50e94565671531e1ce66c2ee1d1a88a0e09
SHA256

68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8
SHA512

5657068cf82679a6cc5636fe4f465834f9340ef0c48a35ca412988f50909922654291bed9178b8990eba2430569e1ebecd45cad119c5a524616c75187d4dabde
SSDEEP

6144:ruFHcG6dc0A3+yfikluZRt6wfSYZc6pNLuvFJzPmhsiqvK5XEHAkgDkJEO:rCL3+YllubttfS16pNuTUqi1EE2EO

Score

10^/10

vidar 3a15237aa92dcd8ccca447211fb5fc2a discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

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/3620-4-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-9-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-11-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-20-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-21-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-37-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3620-38-0x0000000000400000-0x0000000000676000-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 2128 set thread context of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84

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	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3620	RegAsm.exe
3620	RegAsm.exe
3620	RegAsm.exe
3620	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 4436	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	83
PID 2128 wrote to memory of 4436	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	83
PID 2128 wrote to memory of 4436	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	83
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84
PID 2128 wrote to memory of 3620	2128	68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe	84

C:\Users\Admin\AppData\Local\Temp\68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe
"C:\Users\Admin\AppData\Local\Temp\68024ebc8676feb8c4b480f5042a8fe8f108a88fc20fc6dbfc3cf92707f148b8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4436
- 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:3620

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/2128-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000000780000-0x00000000007E8000-memory.dmp

Filesize
416KB

Download
memory/2128-2-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/2128-39-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/2128-6-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/2128-7-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/3620-9-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-11-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-20-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-21-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-23-0x0000000022A70000-0x0000000022CCF000-memory.dmp

Filesize
2.4MB

Download
memory/3620-37-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-38-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3620-4-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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