vidar | f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6

General

Target

f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe
Size

292KB
MD5

82661ca16a1713263f9a11beaf43efee
SHA1

6a86e5b61c134f7db8f50fb17b3ca9e9a2984029
SHA256

f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6
SHA512

fa370a9c1a22f2025c334e8c781e7e2d94043174e5638b66fdbc62cc51afdb5a03aea9ebee6232d2284c4c4aa406c82598e77c9503e13c578e45620d416dad03
SSDEEP

6144:J+kSx0+OvgVz6/MtajJ4i34rnJMJkBccaJntC8OmkwDDAI7F3EO:LSxJsgg/PjJ4b7JwkBvaJnQTwDDAI7dt

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/3012-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-8-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-4-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-25-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-26-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-42-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3012-43-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file
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
T1552.001
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 4216 set thread context of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83

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	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.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 4 IoCs

pid	Process
3012	RegAsm.exe
3012	RegAsm.exe
3012	RegAsm.exe
3012	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83
PID 4216 wrote to memory of 3012	4216	f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe	83

C:\Users\Admin\AppData\Local\Temp\f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe
"C:\Users\Admin\AppData\Local\Temp\f57e57207b27642e6f3e82bc44aa4079f8a1357a8a86341cace885af9cbaf4e6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216
- 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:3012

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/3012-25-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-43-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-42-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-28-0x0000000024B00000-0x0000000024D5F000-memory.dmp

Filesize
2.4MB

Download
memory/3012-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-26-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3012-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4216-13-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/4216-12-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/4216-0-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

Filesize
4KB

Download
memory/4216-2-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/4216-1-0x0000000000F30000-0x0000000000F7A000-memory.dmp

Filesize
296KB

Download

Analysis

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