vidar | 6e47a310f6e5d8032f5a6beb227009be5bfa3c878b2642b6f6bf975c6adfda8a

Analysis

max time kernel
144s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2023 06:11

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General

Target

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
Size

348KB
MD5

ffb737afdafc001d1cde6b2ea73e7766
SHA1

2170a0ae40e936d0b3fa5d2be9224d4ea23596e4
SHA256

6e47a310f6e5d8032f5a6beb227009be5bfa3c878b2642b6f6bf975c6adfda8a
SHA512

d8cf48240bda98387f7dffd22777bf691a53c4469b36b6ff4d5876c2ed7f6eb2e5b0f917bacac8cc6c66d80907a65ecd1ec9bab2aac4ae8a4e8cd1729f5c291c
SSDEEP

6144:/H7JLQhPU2fkhCg0mIsglGm1Uc1YuHWUJDz3Qp1biTvNZvbCa:/H1Uhs2JgZIr0Gh/g1bSl

Score

10^/10

vidar 14 discovery evasion persistence spyware stealer themida trojan

Malware Config

Extracted

Family

vidar

Version

1.5

Botnet

https://t.me/dahuasecurit

https://steamcommunity.com/profiles/76561199441999914

Attributes

profile_id
14

Signatures

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

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

84299186371871633546.exentlhost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	84299186371871633546.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ntlhost.exe

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

84299186371871633546.exentlhost.exe

pid process

224 84299186371871633546.exe
2276 ntlhost.exe

pid	process
224	84299186371871633546.exe
2276	ntlhost.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

84299186371871633546.exentlhost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	84299186371871633546.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	84299186371871633546.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ntlhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ntlhost.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

Processes:

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

Loads dropped DLL 2 IoCs

Processes:

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

pid process

4872 6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
4872 6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.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

pid	process
4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

Themida packer 17 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\ProgramData\84299186371871633546.exe	themida
C:\ProgramData\84299186371871633546.exe	themida
behavioral2/memory/224-163-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
behavioral2/memory/224-165-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
behavioral2/memory/224-166-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
behavioral2/memory/224-167-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
behavioral2/memory/224-168-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe	themida
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe	themida
behavioral2/memory/224-174-0x0000000000380000-0x0000000000C15000-memory.dmp	themida
behavioral2/memory/2276-177-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-178-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-179-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-180-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-181-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-182-0x0000000000590000-0x0000000000E25000-memory.dmp	themida
behavioral2/memory/2276-184-0x0000000000590000-0x0000000000E25000-memory.dmp	themida

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

84299186371871633546.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe"	84299186371871633546.exe

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 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

84299186371871633546.exentlhost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	84299186371871633546.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ntlhost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

84299186371871633546.exentlhost.exe

pid process

224 84299186371871633546.exe
2276 ntlhost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

912 4872 WerFault.exe 6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

pid	process
224	84299186371871633546.exe
2276	ntlhost.exe

pid	pid_target	process	target process
912	4872	WerFault.exe	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.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

Processes:

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3148 timeout.exe
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.

Processes:

description flow ioc

HTTP User-Agent header 41 Go-http-client/1.1
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

pid process

4872 6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
4872 6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

pid	process
3148	timeout.exe

description	flow	ioc
HTTP User-Agent header	41	Go-http-client/1.1

pid	process
4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.execmd.exe84299186371871633546.exe

description	pid	process	target process
PID 4872 wrote to memory of 224	4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe	84299186371871633546.exe
PID 4872 wrote to memory of 224	4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe	84299186371871633546.exe
PID 4872 wrote to memory of 3512	4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe	cmd.exe
PID 4872 wrote to memory of 3512	4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe	cmd.exe
PID 4872 wrote to memory of 3512	4872	6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe	cmd.exe
PID 3512 wrote to memory of 3148	3512	cmd.exe	timeout.exe
PID 3512 wrote to memory of 3148	3512	cmd.exe	timeout.exe
PID 3512 wrote to memory of 3148	3512	cmd.exe	timeout.exe
PID 224 wrote to memory of 2276	224	84299186371871633546.exe	ntlhost.exe
PID 224 wrote to memory of 2276	224	84299186371871633546.exe	ntlhost.exe

C:\Users\Admin\AppData\Local\Temp\6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe
"C:\Users\Admin\AppData\Local\Temp\6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4872

C:\ProgramData\84299186371871633546.exe
"C:\ProgramData\84299186371871633546.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:224

C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2276

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\6E47A310F6E5D8032F5A6BEB227009BE5BFA3C878B264.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3512

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:3148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 2092
2⤵
- Program crash
PID:912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4872 -ip 4872
1⤵
PID:3424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\84299186371871633546.exe
Filesize
2.7MB

MD5
f8b806ec67c501b55dd13ef7adc08bdc

SHA1
002d12c3c46ea5faff054add73b90b95f2fe715f

SHA256
a245a39c9094f28756019247af1d1ecda2d815a43da5225380c1efdac25cd438

SHA512
affbd81cdf463235778878a4cd0d6d616ec1e5e79f27b8a0f7cf58f1fbaf1a4cb50e6bb2af35c4844371b925ccc84bd46f2da6124c5e71ba058238e5b2196041

Download Submit
C:\ProgramData\84299186371871633546.exe
Filesize
2.7MB

MD5
f8b806ec67c501b55dd13ef7adc08bdc

SHA1
002d12c3c46ea5faff054add73b90b95f2fe715f

SHA256
a245a39c9094f28756019247af1d1ecda2d815a43da5225380c1efdac25cd438

SHA512
affbd81cdf463235778878a4cd0d6d616ec1e5e79f27b8a0f7cf58f1fbaf1a4cb50e6bb2af35c4844371b925ccc84bd46f2da6124c5e71ba058238e5b2196041

Download Submit
C:\ProgramData\mozglue.dll
Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll
Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
Filesize
734.7MB

MD5
659faed88c578c4a6f8e187019697bc5

SHA1
3c9719224b9f4a83d88dbec9dc6f59cf47d762d1

SHA256
cdd48cf1caf33f06912246a65e4d52ec6065fa66debf3ee334c207e14cf1edbe

SHA512
a52530d54f69f452539f1c4d7e01265d89c1a7ef54919231725e641525bd46d576829c5b6c6c0b6f6937cdabc01802d1fafeb6e3359715bf87714751a29969c4

Download Submit
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
Filesize
734.7MB

MD5
659faed88c578c4a6f8e187019697bc5

SHA1
3c9719224b9f4a83d88dbec9dc6f59cf47d762d1

SHA256
cdd48cf1caf33f06912246a65e4d52ec6065fa66debf3ee334c207e14cf1edbe

SHA512
a52530d54f69f452539f1c4d7e01265d89c1a7ef54919231725e641525bd46d576829c5b6c6c0b6f6937cdabc01802d1fafeb6e3359715bf87714751a29969c4

Download Submit
memory/224-166-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/224-164-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

Filesize
2.0MB

Download
memory/224-158-0x0000000000000000-mapping.dmp

Download
memory/224-175-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

Filesize
2.0MB

Download
memory/224-174-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/224-168-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/224-167-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/224-163-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/224-165-0x0000000000380000-0x0000000000C15000-memory.dmp

Filesize
8.6MB

Download
memory/2276-171-0x0000000000000000-mapping.dmp

Download
memory/2276-177-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-184-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-183-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

Filesize
2.0MB

Download
memory/2276-182-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-181-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-180-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-179-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-178-0x0000000000590000-0x0000000000E25000-memory.dmp

Filesize
8.6MB

Download
memory/2276-176-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

Filesize
2.0MB

Download
memory/3148-162-0x0000000000000000-mapping.dmp

Download
memory/3512-161-0x0000000000000000-mapping.dmp

Download
memory/4872-170-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4872-136-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4872-135-0x0000000000598000-0x00000000005C9000-memory.dmp

Filesize
196KB

Download
memory/4872-133-0x00000000021E0000-0x0000000002237000-memory.dmp

Filesize
348KB

Download
memory/4872-134-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4872-137-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/4872-132-0x0000000000598000-0x00000000005C9000-memory.dmp

Filesize
196KB

Download
memory/4872-169-0x0000000000598000-0x00000000005C9000-memory.dmp

Filesize
196KB

Download