vidar | b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36

General

Target

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe
Size

2.9MB
MD5

9cf8e4753032fb7fa3f5da1b7613d005
SHA1

bd23e0ef92c5b7b6d844b5c41e2f2536b9e9172d
SHA256

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36
SHA512

7588369c6e3bf5006c000a2ca6afabf2fd31c6abaff673188e0e0b3c4e684ede1b836ef55a7d0cfc34518fa2002a6d650957d8f63e8df406555c3ad1fae83ad8
SSDEEP

49152:RXy2gkTkvSaY0q8/df24onCU6qmS3W6bts/OYTDJVV9M+XcwDhC3Mlby:I2dTcSa+8/N2+1oBb6/rTD/PM9wDMb

Score

10^/10

vidar 932 discovery evasion stealer trojan

Malware Config

Extracted

Family

vidar

Version

41.4

Botnet

932

C2

https://mas.to/@sslam

Attributes

profile_id
932

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

Vidar Stealer 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2748-4-0x0000000000400000-0x0000000000B40000-memory.dmp	family_vidar
behavioral1/memory/2748-3-0x0000000000400000-0x0000000000B40000-memory.dmp	family_vidar
behavioral1/memory/2748-21-0x0000000000400000-0x0000000000B40000-memory.dmp	family_vidar

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

pid process

2748 b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2960 2748 WerFault.exe b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

pid	process
2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

pid	pid_target	process	target process
2960	2748	WerFault.exe	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

pid process

2748 b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

pid	process
2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe

description	pid	process	target process
PID 2748 wrote to memory of 2960	2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe	WerFault.exe
PID 2748 wrote to memory of 2960	2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe	WerFault.exe
PID 2748 wrote to memory of 2960	2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe	WerFault.exe
PID 2748 wrote to memory of 2960	2748	b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe
"C:\Users\Admin\AppData\Local\Temp\b59a622278460eadede27acc282dc76ac00338efada5d144289dec7f3148dd36.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 1300
  2⤵
  - Program crash
  PID:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2748-0-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2748-1-0x00000000773F0000-0x00000000773F2000-memory.dmp

Filesize
8KB

Download
memory/2748-4-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2748-2-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2748-3-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2748-5-0x0000000000401000-0x00000000004BA000-memory.dmp

Filesize
740KB

Download
memory/2748-21-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads