vidar | 01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f

Analysis

max time kernel
103s
max time network
122s
platform
windows7_x64
resource
win7-20220414-en
submitted
23-05-2022 17:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
Size

3.6MB
MD5

697576793e02be59d60a0ba2a59bbc8d
SHA1

3d8e38dfb94cf336c4a31e03e4ccd8bc4983bae5
SHA256

01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f
SHA512

1f065f44a4be0ac4b41efd51e26d19dd56001ad9969d4191ff5f1d70059d77dcd21eb01d09b5bc27461e19545a90c877fce5222fe9aea40c38dc1347aab117ea

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

9.4

Botnet

231

http://prohomedevelopers.com/

Attributes

profile_id
231

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata

Vidar Stealer 1 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1628-66-0x0000000000400000-0x00000000009C5000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1628 busshost.exe
996 YTLoader.exe

pid	process
1628	busshost.exe
996	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exeWerFault.exe

pid	process
780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
1632	WerFault.exe
1632	WerFault.exe
1632	WerFault.exe
1632	WerFault.exe
1632	WerFault.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

7 ip-api.com

flow	ioc
7	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe

description	ioc	process
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.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

1632 996 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1632	996	WerFault.exe	YTLoader.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

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

busshost.exe

pid process

1628 busshost.exe
1628 busshost.exe
1628 busshost.exe
1628 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 996 YTLoader.exe

pid	process
1628	busshost.exe
1628	busshost.exe
1628	busshost.exe
1628	busshost.exe

description	pid	process
Token: SeDebugPrivilege	996	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exeYTLoader.exe

description	pid	process	target process
PID 780 wrote to memory of 1628	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	busshost.exe
PID 780 wrote to memory of 1628	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	busshost.exe
PID 780 wrote to memory of 1628	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	busshost.exe
PID 780 wrote to memory of 1628	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	busshost.exe
PID 780 wrote to memory of 996	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	YTLoader.exe
PID 780 wrote to memory of 996	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	YTLoader.exe
PID 780 wrote to memory of 996	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	YTLoader.exe
PID 780 wrote to memory of 996	780	01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe	YTLoader.exe
PID 996 wrote to memory of 1632	996	YTLoader.exe	WerFault.exe
PID 996 wrote to memory of 1632	996	YTLoader.exe	WerFault.exe
PID 996 wrote to memory of 1632	996	YTLoader.exe	WerFault.exe
PID 996 wrote to memory of 1632	996	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe
"C:\Users\Admin\AppData\Local\Temp\01ecb8e12553c49e1e31a7246653b6131289f22f44f0deb7097afb39ff46af9f.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:780

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:1628

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
- Suspicious use of WriteProcessMemory
PID:996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1188
3⤵
- Loads dropped DLL
- Program crash
PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

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
927KB

MD5
41e889d85b10720ae552caae2b62279c

SHA1
ca427f8f0bed8fcd608784193ad5304bc0ac8232

SHA256
4e6ad1e300803b75a210f20ddf00056932c476e9df8117111ed2ae65a533bb01

SHA512
5065def5be672c2884d24e090bc1a0c439ca3708933249cc66e95d08dd8636f1061b7cd845cd824020d6727d730f19f89f4d69d14a7150fcae87f182bb8bc66e

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

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

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
927KB

MD5
41e889d85b10720ae552caae2b62279c

SHA1
ca427f8f0bed8fcd608784193ad5304bc0ac8232

SHA256
4e6ad1e300803b75a210f20ddf00056932c476e9df8117111ed2ae65a533bb01

SHA512
5065def5be672c2884d24e090bc1a0c439ca3708933249cc66e95d08dd8636f1061b7cd845cd824020d6727d730f19f89f4d69d14a7150fcae87f182bb8bc66e

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
927KB

MD5
41e889d85b10720ae552caae2b62279c

SHA1
ca427f8f0bed8fcd608784193ad5304bc0ac8232

SHA256
4e6ad1e300803b75a210f20ddf00056932c476e9df8117111ed2ae65a533bb01

SHA512
5065def5be672c2884d24e090bc1a0c439ca3708933249cc66e95d08dd8636f1061b7cd845cd824020d6727d730f19f89f4d69d14a7150fcae87f182bb8bc66e

Download Submit
memory/780-54-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/996-73-0x0000000000630000-0x000000000063A000-memory.dmp

Filesize
40KB

Download
memory/996-78-0x00000000006D0000-0x00000000006D8000-memory.dmp

Filesize
32KB

Download
memory/996-71-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download
memory/996-72-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/996-68-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/996-74-0x0000000000690000-0x000000000069A000-memory.dmp

Filesize
40KB

Download
memory/996-75-0x00000000006A0000-0x00000000006A8000-memory.dmp

Filesize
32KB

Download
memory/996-76-0x00000000006B0000-0x00000000006BE000-memory.dmp

Filesize
56KB

Download
memory/996-77-0x00000000006C0000-0x00000000006C8000-memory.dmp

Filesize
32KB

Download
memory/996-70-0x0000000005280000-0x00000000056DA000-memory.dmp

Filesize
4.4MB

Download
memory/996-79-0x0000000000CE0000-0x0000000000CE8000-memory.dmp

Filesize
32KB

Download
memory/996-80-0x0000000000CF0000-0x0000000000CF8000-memory.dmp

Filesize
32KB

Download
memory/996-81-0x0000000000D50000-0x0000000000D58000-memory.dmp

Filesize
32KB

Download
memory/996-82-0x0000000000D60000-0x0000000000D68000-memory.dmp

Filesize
32KB

Download
memory/996-60-0x0000000000000000-mapping.dmp

Download
memory/996-67-0x0000000000F10000-0x0000000001218000-memory.dmp

Filesize
3.0MB

Download
memory/1628-66-0x0000000000400000-0x00000000009C5000-memory.dmp

Filesize
5.8MB

Download
memory/1628-65-0x00000000009D0000-0x0000000000AD0000-memory.dmp

Filesize
1024KB

Download
memory/1628-57-0x0000000000000000-mapping.dmp

Download
memory/1632-83-0x0000000000000000-mapping.dmp

Download