vidar | b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c

Analysis

max time kernel
65s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/10/2022, 12:00

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General

Target

b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
Size

1.4MB
MD5

c6688ae7a75cc1f8e8969205542a198c
SHA1

25c8a2fdfcbb38f2b47a445a1e0bbfa730d7c038
SHA256

b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c
SHA512

7c70f40c2fe099d414f9e70f0c3e304da601ccc39288dae13f33937ce2e8c239e1e2711bdfd57aa07aa6d39f4dd86c2355307b164c5a34d1d93d7b8b5b56dcb4
SSDEEP

24576:incstcaeq+8myRyQuboSPUOqweufzdElLVNEXNqEJPaDldCVEuK/atCWM:AtSq+8myAQuboSPCwRLK+XgQCXtry/M

Score

10^/10

vidar 1754 discovery evasion spyware stealer trojan

Malware Config

Extracted

Family

vidar

Version

55.2

Botnet

1754

https://t.me/slivetalks

https://c.im/@xinibin420

Attributes

profile_id
1754

Signatures

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Loads dropped DLL 3 IoCs

pid	Process
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

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
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3096	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 1664	4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe	85
PID 4616 wrote to memory of 1664	4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe	85
PID 4616 wrote to memory of 1664	4616	b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe	85
PID 1664 wrote to memory of 3096	1664	cmd.exe	87
PID 1664 wrote to memory of 3096	1664	cmd.exe	87
PID 1664 wrote to memory of 3096	1664	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe
"C:\Users\Admin\AppData\Local\Temp\b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b95bfc4e7ce7a1d15332d4cd6c350ca800f437dbfe903c0c47cf01afb09b137c.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:3096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\ProgramData\sqlite3.dll

Filesize
1.1MB

MD5
1f44d4d3087c2b202cf9c90ee9d04b0f

SHA1
106a3ebc9e39ab6ddb3ff987efb6527c956f192d

SHA256
4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

SHA512
b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

Download Submit
memory/4616-135-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-140-0x0000000077A70000-0x0000000077C13000-memory.dmp

Filesize
1.6MB

Download
memory/4616-137-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-139-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-138-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-132-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-134-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-145-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-133-0x0000000000620000-0x0000000000A17000-memory.dmp

Filesize
4.0MB

Download
memory/4616-147-0x0000000077A70000-0x0000000077C13000-memory.dmp

Filesize
1.6MB

Download