vidar | 8361e4858ff44de225a4e3bb6c23e739f494af295f7c94e9744af2d6dcf56321

Analysis

max time kernel
151s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2022 15:58

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General

Target

vidar.exe
Size

4.3MB
MD5

9d3d0e705b4e4b8b2a694b89802c9f32
SHA1

f0ee20b66f07b71c5d29e859adb301e6c0daf5af
SHA256

8361e4858ff44de225a4e3bb6c23e739f494af295f7c94e9744af2d6dcf56321
SHA512

548a18686a7f1ef4a26e9cc0df6422f94c1e328d13fc7618511e1303eee8d688ddde0048441126b51e6028a434bc86fe90a0487655d7226196be653813ff68f2
SSDEEP

98304:1AI+CCyF+foMnCfBT2pbLkouyu2CozB8EEkfH51lWdOjKkTJL:mt4/MUBskoBLCoqEvZ7EkNL

Score

10^/10

vidar 231 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.3

Botnet

231

http://trasolevelqvines.com/

Attributes

profile_id
231

Signatures

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

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4528-151-0x0000000000400000-0x0000000000CBE000-memory.dmp	family_vidar
behavioral2/memory/4528-160-0x0000000000400000-0x0000000000CBE000-memory.dmp	family_vidar

Executes dropped EXE 4 IoCs

Processes:

busshost.exeYTLoader.execonf.exeattachmentphoto.exe

pid process

4528 busshost.exe
364 YTLoader.exe
1752 conf.exe
204 attachmentphoto.exe

pid	process
4528	busshost.exe
364	YTLoader.exe
1752	conf.exe
204	attachmentphoto.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

vidar.execonf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	vidar.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	conf.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
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
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 ip-api.com

flow	ioc
8	ip-api.com

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/1752-154-0x0000000000400000-0x0000000000D0D000-memory.dmp	autoit_exe
behavioral2/memory/204-165-0x0000000000400000-0x0000000000D0D000-memory.dmp	autoit_exe
behavioral2/memory/1752-170-0x0000000000400000-0x0000000000D0D000-memory.dmp	autoit_exe
behavioral2/memory/204-172-0x0000000000400000-0x0000000000D0D000-memory.dmp	autoit_exe

Drops file in Program Files directory 5 IoCs

Processes:

vidar.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	vidar.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	vidar.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\conf.exe	vidar.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	vidar.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	vidar.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 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4104 364 WerFault.exe YTLoader.exe
4872 1752 WerFault.exe conf.exe

pid	pid_target	process	target process
4104	364	WerFault.exe	YTLoader.exe
4872	1752	WerFault.exe	conf.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

YTLoader.exebusshost.exe

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

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1296 schtasks.exe
628 schtasks.exe

pid	process
1296	schtasks.exe
628	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

YTLoader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	YTLoader.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4992 PING.EXE
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

busshost.exe

pid process

4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
4528 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 364 YTLoader.exe

pid	process
4992	PING.EXE

pid	process
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe
4528	busshost.exe

description	pid	process
Token: SeDebugPrivilege	364	YTLoader.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

vidar.execonf.execmd.exeattachmentphoto.execmd.execmd.exe

description	pid	process	target process
PID 1088 wrote to memory of 4528	1088	vidar.exe	busshost.exe
PID 1088 wrote to memory of 4528	1088	vidar.exe	busshost.exe
PID 1088 wrote to memory of 4528	1088	vidar.exe	busshost.exe
PID 1088 wrote to memory of 364	1088	vidar.exe	YTLoader.exe
PID 1088 wrote to memory of 364	1088	vidar.exe	YTLoader.exe
PID 1088 wrote to memory of 364	1088	vidar.exe	YTLoader.exe
PID 1088 wrote to memory of 1752	1088	vidar.exe	conf.exe
PID 1088 wrote to memory of 1752	1088	vidar.exe	conf.exe
PID 1088 wrote to memory of 1752	1088	vidar.exe	conf.exe
PID 1752 wrote to memory of 204	1752	conf.exe	attachmentphoto.exe
PID 1752 wrote to memory of 204	1752	conf.exe	attachmentphoto.exe
PID 1752 wrote to memory of 204	1752	conf.exe	attachmentphoto.exe
PID 1752 wrote to memory of 1212	1752	conf.exe	cmd.exe
PID 1752 wrote to memory of 1212	1752	conf.exe	cmd.exe
PID 1752 wrote to memory of 1212	1752	conf.exe	cmd.exe
PID 1212 wrote to memory of 4992	1212	cmd.exe	PING.EXE
PID 1212 wrote to memory of 4992	1212	cmd.exe	PING.EXE
PID 1212 wrote to memory of 4992	1212	cmd.exe	PING.EXE
PID 204 wrote to memory of 1632	204	attachmentphoto.exe	cmd.exe
PID 204 wrote to memory of 1632	204	attachmentphoto.exe	cmd.exe
PID 204 wrote to memory of 1632	204	attachmentphoto.exe	cmd.exe
PID 204 wrote to memory of 1652	204	attachmentphoto.exe	cmd.exe
PID 204 wrote to memory of 1652	204	attachmentphoto.exe	cmd.exe
PID 204 wrote to memory of 1652	204	attachmentphoto.exe	cmd.exe
PID 1632 wrote to memory of 1296	1632	cmd.exe	schtasks.exe
PID 1632 wrote to memory of 1296	1632	cmd.exe	schtasks.exe
PID 1632 wrote to memory of 1296	1632	cmd.exe	schtasks.exe
PID 1652 wrote to memory of 628	1652	cmd.exe	schtasks.exe
PID 1652 wrote to memory of 628	1652	cmd.exe	schtasks.exe
PID 1652 wrote to memory of 628	1652	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\vidar.exe
"C:\Users\Admin\AppData\Local\Temp\vidar.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1088

C:\Program Files (x86)\LetsSee!\busshost.exe
"C:\Program Files (x86)\LetsSee!\busshost.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4528

C:\Program Files (x86)\LetsSee!\YTLoader.exe
"C:\Program Files (x86)\LetsSee!\YTLoader.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 364 -s 1608
3⤵
- Program crash
PID:4104

C:\Program Files (x86)\LetsSee!\conf.exe
"C:\Program Files (x86)\LetsSee!\conf.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1752

C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c SchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\SysWOW64\schtasks.exe
SchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe
5⤵
- Creates scheduled task(s)
PID:628

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c SchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\schtasks.exe
SchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe
5⤵
- Creates scheduled task(s)
PID:1296

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping -n 2 localhost < nul & del /F /Q "C:\Program Files (x86)\LetsSee!\conf.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\SysWOW64\PING.EXE
ping -n 2 localhost
4⤵
- Runs ping.exe
PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1008
3⤵
- Program crash
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 364 -ip 364
1⤵
PID:3264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1752 -ip 1752
1⤵
PID:4816

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Remote System Discovery

T1018

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
736KB

MD5
5f00c792a03fd8a892ea0ba2e7a7750e

SHA1
93339d0af83bebfa55082a515ae71f3e0d587c91

SHA256
a1726ea1e9eabdb8ba961488f9ff72e792d30e4a1368535d880b4d688f96e2d2

SHA512
d052198abca3f10d7b219d70ceeca8520c6278859d2893b9ef77025bb5aac9dbb2ec3b1a252e4c7f0b7453d64dd1519ac61f47ebb4c04c5750505d89a60d648d

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
736KB

MD5
5f00c792a03fd8a892ea0ba2e7a7750e

SHA1
93339d0af83bebfa55082a515ae71f3e0d587c91

SHA256
a1726ea1e9eabdb8ba961488f9ff72e792d30e4a1368535d880b4d688f96e2d2

SHA512
d052198abca3f10d7b219d70ceeca8520c6278859d2893b9ef77025bb5aac9dbb2ec3b1a252e4c7f0b7453d64dd1519ac61f47ebb4c04c5750505d89a60d648d

Download Submit
C:\Program Files (x86)\LetsSee!\conf.exe
Filesize
1.0MB

MD5
9c21ec5a0f7a766447afe5dfd5613941

SHA1
c4ad36fb800b1a526337e26a7321ed7c88e1f630

SHA256
42716a70ea4cbd62f024dcec8ffca43448e64f8696f7df1459c59a4ada813907

SHA512
118d630ef53124ab8c166b8655ceb9032893b6ac7a70904aadf793f9268867718ee4ad1ccb797c197808d6b00ed62095048331afbbbec9dc2644ce6d84aeb70d

Download Submit
C:\Program Files (x86)\LetsSee!\conf.exe
Filesize
1.0MB

MD5
9c21ec5a0f7a766447afe5dfd5613941

SHA1
c4ad36fb800b1a526337e26a7321ed7c88e1f630

SHA256
42716a70ea4cbd62f024dcec8ffca43448e64f8696f7df1459c59a4ada813907

SHA512
118d630ef53124ab8c166b8655ceb9032893b6ac7a70904aadf793f9268867718ee4ad1ccb797c197808d6b00ed62095048331afbbbec9dc2644ce6d84aeb70d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\temp.ini
Filesize
199B

MD5
3d68da5fd157231843a13667676de3f2

SHA1
206082eb56a40f38ba1e852ffcde4cd6e23cc338

SHA256
f5c9d294b9c805e38bebe17ac7150bf591df5b28f28db56dc2a1a9e609331759

SHA512
e136ed0cc3f47c52b439d72d39fcde3724852ec106e145c5e0dbb6d4d6e69209da7d160e3cc7c7ad51370230ffd4403477a65cd334cf71965473b847db0584a5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
Filesize
1.0MB

MD5
9c21ec5a0f7a766447afe5dfd5613941

SHA1
c4ad36fb800b1a526337e26a7321ed7c88e1f630

SHA256
42716a70ea4cbd62f024dcec8ffca43448e64f8696f7df1459c59a4ada813907

SHA512
118d630ef53124ab8c166b8655ceb9032893b6ac7a70904aadf793f9268867718ee4ad1ccb797c197808d6b00ed62095048331afbbbec9dc2644ce6d84aeb70d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
Filesize
1.0MB

MD5
9c21ec5a0f7a766447afe5dfd5613941

SHA1
c4ad36fb800b1a526337e26a7321ed7c88e1f630

SHA256
42716a70ea4cbd62f024dcec8ffca43448e64f8696f7df1459c59a4ada813907

SHA512
118d630ef53124ab8c166b8655ceb9032893b6ac7a70904aadf793f9268867718ee4ad1ccb797c197808d6b00ed62095048331afbbbec9dc2644ce6d84aeb70d

Download Submit
memory/204-172-0x0000000000400000-0x0000000000D0D000-memory.dmp

Filesize
9.1MB

Download
memory/204-155-0x0000000000000000-mapping.dmp

Download
memory/204-162-0x0000000000F2A000-0x0000000000FC0000-memory.dmp

Filesize
600KB

Download
memory/204-165-0x0000000000400000-0x0000000000D0D000-memory.dmp

Filesize
9.1MB

Download
memory/204-171-0x0000000000F2A000-0x0000000000FC0000-memory.dmp

Filesize
600KB

Download
memory/364-144-0x0000000005D10000-0x0000000005D18000-memory.dmp

Filesize
32KB

Download
memory/364-147-0x0000000005D50000-0x0000000005D58000-memory.dmp

Filesize
32KB

Download
memory/364-148-0x0000000005D60000-0x0000000005D68000-memory.dmp

Filesize
32KB

Download
memory/364-146-0x0000000005D40000-0x0000000005D48000-memory.dmp

Filesize
32KB

Download
memory/364-145-0x0000000005D20000-0x0000000005D28000-memory.dmp

Filesize
32KB

Download
memory/364-143-0x0000000005600000-0x0000000005608000-memory.dmp

Filesize
32KB

Download
memory/364-140-0x00000000008E0000-0x0000000000BE8000-memory.dmp

Filesize
3.0MB

Download
memory/364-135-0x0000000000000000-mapping.dmp

Download
memory/364-142-0x00000000055E0000-0x00000000055E8000-memory.dmp

Filesize
32KB

Download
memory/364-141-0x00000000055D0000-0x00000000055DA000-memory.dmp

Filesize
40KB

Download
memory/628-169-0x0000000000000000-mapping.dmp

Download
memory/1212-157-0x0000000000000000-mapping.dmp

Download
memory/1296-168-0x0000000000000000-mapping.dmp

Download
memory/1632-166-0x0000000000000000-mapping.dmp

Download
memory/1652-167-0x0000000000000000-mapping.dmp

Download
memory/1752-138-0x0000000000000000-mapping.dmp

Download
memory/1752-161-0x0000000001052000-0x00000000010E8000-memory.dmp

Filesize
600KB

Download
memory/1752-154-0x0000000000400000-0x0000000000D0D000-memory.dmp

Filesize
9.1MB

Download
memory/1752-152-0x0000000001052000-0x00000000010E8000-memory.dmp

Filesize
600KB

Download
memory/1752-170-0x0000000000400000-0x0000000000D0D000-memory.dmp

Filesize
9.1MB

Download
memory/4528-132-0x0000000000000000-mapping.dmp

Download
memory/4528-160-0x0000000000400000-0x0000000000CBE000-memory.dmp

Filesize
8.7MB

Download
memory/4528-159-0x0000000000F80000-0x0000000001080000-memory.dmp

Filesize
1024KB

Download
memory/4528-151-0x0000000000400000-0x0000000000CBE000-memory.dmp

Filesize
8.7MB

Download
memory/4528-150-0x0000000000F80000-0x0000000001080000-memory.dmp

Filesize
1024KB

Download
memory/4992-158-0x0000000000000000-mapping.dmp

Download