vidar | 2877045b8070e96a89be7013bf36481f9abccb8fb7f527766a704e781882a5a9

Analysis

max time kernel
91s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 13:59

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General

Target

file.exe
Size

550KB
MD5

f1214cfabdff698a3d7d49daec1254c1
SHA1

8ac4c3c3eff05b6db38c26a16d1c69eb913d7194
SHA256

2877045b8070e96a89be7013bf36481f9abccb8fb7f527766a704e781882a5a9
SHA512

0486a8eb34dade29f3d2c568c7b4751fd86ad05a980c3fc20792336d8511ca8505f79819894758d6096177176cd6b42d3a461f075d8bf97856dea9e3c20fbd02
SSDEEP

12288:yYQwqLWzDCQH2bJMHfmntiheky65t4Wz26xNe0H6P:gb3QHwM9hJy6wtqNm

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

http://proxy.johnmccrea.com/

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 6 IoCs

stealer

resource	yara_rule
behavioral2/memory/4504-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4504-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4504-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4504-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4504-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4504-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 4504	2664	file.exe	84

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3204	2664	WerFault.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	file.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4504	MSBuild.exe
4504	MSBuild.exe
4504	MSBuild.exe
4504	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84
PID 2664 wrote to memory of 4504	2664	file.exe	84

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664
- 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:4504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 252
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2664 -ip 2664
1⤵
PID:4988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2664-0-0x00007FF9DA150000-0x00007FF9DA345000-memory.dmp

Filesize
2.0MB

Download
memory/4504-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-6-0x00007FF9DA150000-0x00007FF9DA345000-memory.dmp

Filesize
2.0MB

Download
memory/4504-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-10-0x000000001FF20000-0x000000002017F000-memory.dmp

Filesize
2.4MB

Download
memory/4504-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4504-27-0x00007FF9DA150000-0x00007FF9DA345000-memory.dmp

Filesize
2.0MB

Download