vidar | d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f

General

Target

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
Size

747KB
MD5

e1f83b28721f3c95f9064ed44710a484
SHA1

28e022870babe234e796ba14cf8b69f262eede7e
SHA256

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f
SHA512

c3f699a2bf5c11ec3ef2d417bc49d9c2bc202247a52f5063f45cb549afa7b9a8e20b1100dddafb25eba6e99b2a92cd4b9097b11a7083f1834787af1ba4cb8289

Score

10^/10

vidar 937 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

48.3

Botnet

937

Attributes

profile_id
937

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
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
behavioral2/memory/3784-135-0x0000000004810000-0x00000000048E5000-memory.dmp	family_vidar
behavioral2/memory/3784-136-0x0000000000400000-0x00000000004D8000-memory.dmp	family_vidar

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:

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.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
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

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.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

Processes:

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3856 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3564 taskkill.exe

pid	process
3856	timeout.exe

pid	process
3564	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe

pid	process
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

svchost.exetaskkill.exeTiWorker.exe

description	pid	process
Token: SeShutdownPrivilege	936	svchost.exe
Token: SeCreatePagefilePrivilege	936	svchost.exe
Token: SeShutdownPrivilege	936	svchost.exe
Token: SeCreatePagefilePrivilege	936	svchost.exe
Token: SeShutdownPrivilege	936	svchost.exe
Token: SeCreatePagefilePrivilege	936	svchost.exe
Token: SeDebugPrivilege	3564	taskkill.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe
Token: SeBackupPrivilege	3204	TiWorker.exe
Token: SeRestorePrivilege	3204	TiWorker.exe
Token: SeSecurityPrivilege	3204	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.execmd.exe

description	pid	process	target process
PID 3784 wrote to memory of 4236	3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe	cmd.exe
PID 3784 wrote to memory of 4236	3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe	cmd.exe
PID 3784 wrote to memory of 4236	3784	d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe	cmd.exe
PID 4236 wrote to memory of 3564	4236	cmd.exe	taskkill.exe
PID 4236 wrote to memory of 3564	4236	cmd.exe	taskkill.exe
PID 4236 wrote to memory of 3564	4236	cmd.exe	taskkill.exe
PID 4236 wrote to memory of 3856	4236	cmd.exe	timeout.exe
PID 4236 wrote to memory of 3856	4236	cmd.exe	timeout.exe
PID 4236 wrote to memory of 3856	4236	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
"C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe"
1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe" & del C:\ProgramData\*.dll & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4236

C:\Windows\SysWOW64\taskkill.exe
taskkill /im d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3564

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:3856

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:936

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3204

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\freebl3.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
C:\ProgramData\mozglue.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
C:\ProgramData\msvcp140.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
C:\ProgramData\nss3.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
C:\ProgramData\softokn3.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
C:\ProgramData\vcruntime140.dll
MD5
8eec510e57f5f732fd2cce73df7b73ef

SHA1
3c0af39ecb3753c5fee3b53d063c7286019eac3b

SHA256
55f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0

SHA512
73bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574

Download Submit
memory/936-130-0x000002F9E5380000-0x000002F9E5390000-memory.dmp

Filesize
64KB

Download
memory/936-132-0x000002F9E8760000-0x000002F9E8764000-memory.dmp

Filesize
16KB

Download
memory/936-131-0x000002F9E5B60000-0x000002F9E5B70000-memory.dmp

Filesize
64KB

Download
memory/3784-133-0x0000000002CB8000-0x0000000002D34000-memory.dmp

Filesize
496KB

Download
memory/3784-136-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3784-135-0x0000000004810000-0x00000000048E5000-memory.dmp

Filesize
852KB

Download
memory/3784-134-0x0000000002CB8000-0x0000000002D34000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads