vidar | 931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5

General

Target

931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe
Size

580KB
MD5

4dc984d2765c195fdaa10a9661309a52
SHA1

8a64406f42f09a697d53e4960c1512ed79adbd05
SHA256

931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5
SHA512

8887d23b1e72d9c61eb13b16072c0f072e0397ac36c9a82fc8a3fa98d4c8fdd7e9fc6f890356e5a5f3f82618104b11daaa0999769eab50a74f11a45d5835f6aa
SSDEEP

12288:yKHCYvQ2v9LhwVzUvneFhKHMzCueMsA+mIeueJrKA:yKZvQaSzU/oM0xBsA+1vel5

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

C2

http://lade.petperfectcare.com:80

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/4780-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4780-19-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5116 set thread context of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83

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	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4780	MSBuild.exe
4780	MSBuild.exe
4780	MSBuild.exe
4780	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83
PID 5116 wrote to memory of 4780	5116	931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe	83

C:\Users\Admin\AppData\Local\Temp\931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe
"C:\Users\Admin\AppData\Local\Temp\931ac54db53c787f4138e73535db1664fc22cfbd9957b53d4c5135bc8a0dabd5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4780-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-10-0x00000000201E0000-0x000000002043F000-memory.dmp

Filesize
2.4MB

Download
memory/4780-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4780-19-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/5116-0-0x0000000000ABC000-0x0000000000ABE000-memory.dmp

Filesize
8KB

Download

Analysis

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