vidar | 3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454

Analysis

max time kernel
106s
max time network
127s
platform
windows7_x64
resource
win7-20220414-en
submitted
01-07-2022 14:39

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General

Target

3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
Size

3.7MB
MD5

bb42a11790611d99f931f88aa57f127b
SHA1

11e858ad7051205d8e2701b17f30fed1a462c772
SHA256

3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454
SHA512

7607591ffd5aae818327bcd942ad61bff650fe252376675d0baacbc9d0bddaa0357a127efd4e674d1013e7f5987b91b14f5e9a08d9ad743726a24409a6628777

Score

10^/10

vidar 231 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

10.6

Botnet

231

http://coinchangerapi.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 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1092-70-0x0000000000400000-0x00000000004DB000-memory.dmp	family_vidar
behavioral1/memory/1092-90-0x0000000000400000-0x00000000004DB000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1092 busshost.exe
1832 YTLoader.exe

pid	process
1092	busshost.exe
1832	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exeWerFault.exe

pid	process
1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
704	WerFault.exe
704	WerFault.exe
704	WerFault.exe
704	WerFault.exe
704	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

8 ip-api.com

flow	ioc
8	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.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

704 1832 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
704	1832	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

1092 busshost.exe
1092 busshost.exe
1092 busshost.exe
1092 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 1832 YTLoader.exe

pid	process
1092	busshost.exe
1092	busshost.exe
1092	busshost.exe
1092	busshost.exe

description	pid	process
Token: SeDebugPrivilege	1832	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exeYTLoader.exe

description	pid	process	target process
PID 1992 wrote to memory of 1092	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	busshost.exe
PID 1992 wrote to memory of 1092	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	busshost.exe
PID 1992 wrote to memory of 1092	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	busshost.exe
PID 1992 wrote to memory of 1092	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	busshost.exe
PID 1992 wrote to memory of 1832	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	YTLoader.exe
PID 1992 wrote to memory of 1832	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	YTLoader.exe
PID 1992 wrote to memory of 1832	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	YTLoader.exe
PID 1992 wrote to memory of 1832	1992	3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe	YTLoader.exe
PID 1832 wrote to memory of 704	1832	YTLoader.exe	WerFault.exe
PID 1832 wrote to memory of 704	1832	YTLoader.exe	WerFault.exe
PID 1832 wrote to memory of 704	1832	YTLoader.exe	WerFault.exe
PID 1832 wrote to memory of 704	1832	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe
"C:\Users\Admin\AppData\Local\Temp\3dbe4ac636009db48dd8a59bcfb36f4746da80b55603a7395a04c3c297d99454.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1992

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:1092

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:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 1188
3⤵
- Loads dropped DLL
- Program crash
PID:704

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

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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
787KB

MD5
5f840e1f2ec8ce4d72e41b6d24a27e32

SHA1
a1e5a1a37d056c2df261811ce370294b770a2353

SHA256
44d0564b5ed42a8e85db0ef28d9b5b16a1e764711751d95b29a5f836735980cb

SHA512
3e4eed292d07f7dafa46703fcd20a97a027c0c8a93d2921b0fbf4bdcc16795ac9ff4d6631ee6de957b6549c5076d8552ffd8286e14fc1db8e31bfc112a4a6a37

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
787KB

MD5
5f840e1f2ec8ce4d72e41b6d24a27e32

SHA1
a1e5a1a37d056c2df261811ce370294b770a2353

SHA256
44d0564b5ed42a8e85db0ef28d9b5b16a1e764711751d95b29a5f836735980cb

SHA512
3e4eed292d07f7dafa46703fcd20a97a027c0c8a93d2921b0fbf4bdcc16795ac9ff4d6631ee6de957b6549c5076d8552ffd8286e14fc1db8e31bfc112a4a6a37

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
787KB

MD5
5f840e1f2ec8ce4d72e41b6d24a27e32

SHA1
a1e5a1a37d056c2df261811ce370294b770a2353

SHA256
44d0564b5ed42a8e85db0ef28d9b5b16a1e764711751d95b29a5f836735980cb

SHA512
3e4eed292d07f7dafa46703fcd20a97a027c0c8a93d2921b0fbf4bdcc16795ac9ff4d6631ee6de957b6549c5076d8552ffd8286e14fc1db8e31bfc112a4a6a37

Download Submit
memory/704-83-0x0000000000000000-mapping.dmp

Download
memory/1092-89-0x0000000001DA0000-0x0000000001EA0000-memory.dmp

Filesize
1024KB

Download
memory/1092-70-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1092-69-0x0000000001DA0000-0x0000000001EA0000-memory.dmp

Filesize
1024KB

Download
memory/1092-90-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/1092-57-0x0000000000000000-mapping.dmp

Download
memory/1832-73-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/1832-74-0x0000000000420000-0x000000000042A000-memory.dmp

Filesize
40KB

Download
memory/1832-76-0x0000000000540000-0x000000000054E000-memory.dmp

Filesize
56KB

Download
memory/1832-77-0x0000000000590000-0x0000000000598000-memory.dmp

Filesize
32KB

Download
memory/1832-78-0x0000000000750000-0x0000000000758000-memory.dmp

Filesize
32KB

Download
memory/1832-79-0x00000000009D0000-0x00000000009D8000-memory.dmp

Filesize
32KB

Download
memory/1832-80-0x00000000009E0000-0x00000000009E8000-memory.dmp

Filesize
32KB

Download
memory/1832-81-0x0000000000A00000-0x0000000000A08000-memory.dmp

Filesize
32KB

Download
memory/1832-82-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/1832-75-0x0000000000530000-0x0000000000538000-memory.dmp

Filesize
32KB

Download
memory/1832-60-0x0000000000000000-mapping.dmp

Download
memory/1832-72-0x00000000002B0000-0x00000000002BA000-memory.dmp

Filesize
40KB

Download
memory/1832-71-0x00000000002A0000-0x00000000002B0000-memory.dmp

Filesize
64KB

Download
memory/1832-68-0x00000000050D0000-0x000000000552A000-memory.dmp

Filesize
4.4MB

Download
memory/1832-64-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/1832-63-0x0000000001260000-0x0000000001568000-memory.dmp

Filesize
3.0MB

Download
memory/1992-54-0x00000000751C1000-0x00000000751C3000-memory.dmp

Filesize
8KB

Download