vidar | 2692f4594cebfa3afca882274dc1432fea1ccbc7d3f37db3e15059722db1d97b

General

Target

a1d952bac582c5d5f44c6f0ff09ebedd.exe
Size

744KB
MD5

a1d952bac582c5d5f44c6f0ff09ebedd
SHA1

4dced96e35ea074c01e6bd4c5b8fc3c881c695e7
SHA256

2692f4594cebfa3afca882274dc1432fea1ccbc7d3f37db3e15059722db1d97b
SHA512

6bfc2f1ff5ded10c0dc355757fcca092b0388c9cce11e725cb5c77a0dae11ab1b004dd42b11d90d468cf09c23d1db5e70b9afc3112ebe1727b401af871516e48

Score

10^/10

vidar 1008 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.3

Botnet

1008

C2

https://mas.to/@oleg98

Attributes

profile_id
1008

Signatures

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

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1860-116-0x0000000003510000-0x00000000035E6000-memory.dmp	family_vidar
behavioral2/memory/1860-117-0x0000000000400000-0x000000000172D000-memory.dmp	family_vidar

Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

a1d952bac582c5d5f44c6f0ff09ebedd.exe

pid process

1860 a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860 a1d952bac582c5d5f44c6f0ff09ebedd.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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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
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:

a1d952bac582c5d5f44c6f0ff09ebedd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	a1d952bac582c5d5f44c6f0ff09ebedd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a1d952bac582c5d5f44c6f0ff09ebedd.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

424 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

908 taskkill.exe

pid	process
424	timeout.exe

pid	process
908	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

a1d952bac582c5d5f44c6f0ff09ebedd.exe

pid	process
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe
1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 908 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	908	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a1d952bac582c5d5f44c6f0ff09ebedd.execmd.exe

description	pid	process	target process
PID 1860 wrote to memory of 1708	1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe	cmd.exe
PID 1860 wrote to memory of 1708	1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe	cmd.exe
PID 1860 wrote to memory of 1708	1860	a1d952bac582c5d5f44c6f0ff09ebedd.exe	cmd.exe
PID 1708 wrote to memory of 908	1708	cmd.exe	taskkill.exe
PID 1708 wrote to memory of 908	1708	cmd.exe	taskkill.exe
PID 1708 wrote to memory of 908	1708	cmd.exe	taskkill.exe
PID 1708 wrote to memory of 424	1708	cmd.exe	timeout.exe
PID 1708 wrote to memory of 424	1708	cmd.exe	timeout.exe
PID 1708 wrote to memory of 424	1708	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\a1d952bac582c5d5f44c6f0ff09ebedd.exe
"C:\Users\Admin\AppData\Local\Temp\a1d952bac582c5d5f44c6f0ff09ebedd.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im a1d952bac582c5d5f44c6f0ff09ebedd.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a1d952bac582c5d5f44c6f0ff09ebedd.exe" & del C:\ProgramData\*.dll & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\taskkill.exe
taskkill /im a1d952bac582c5d5f44c6f0ff09ebedd.exe /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:908

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/424-122-0x0000000000000000-mapping.dmp

Download
memory/908-121-0x0000000000000000-mapping.dmp

Download
memory/1708-120-0x0000000000000000-mapping.dmp

Download
memory/1860-115-0x0000000001A86000-0x0000000001B02000-memory.dmp

Filesize
496KB

Download
memory/1860-116-0x0000000003510000-0x00000000035E6000-memory.dmp

Filesize
856KB

Download
memory/1860-117-0x0000000000400000-0x000000000172D000-memory.dmp

Filesize
19.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads