vidar | 9dc2aee4b65b09658a4412e9cd10aaf655faeb9b5500241455c0183150581e1e

Analysis

max time kernel
39s
max time network
102s
platform
windows7_x64
resource
win7v20210408
submitted
07-07-2021 17:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d93befb933caaf737d83b0aee9577449.exe
Size

3.2MB
MD5

d93befb933caaf737d83b0aee9577449
SHA1

2524f6afd33f0b787db7251d78c4ef5b7961913a
SHA256

9dc2aee4b65b09658a4412e9cd10aaf655faeb9b5500241455c0183150581e1e
SHA512

8c437345af6ce2f2d37068c2fd23dc52659223dcdbe1c982ce1a4acc991c1f969c21a8d176b3327bc47c4b542ad9333dcc7f6d660c48b6bd4ef3e994e3277e12

Score

10^/10

vidar 950 discovery evasion spyware stealer

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

950

https://sergeevih43.tumblr.com

Attributes

profile_id
950

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Vidar Stealer 1 IoCs

stealer

resource	yara_rule
behavioral1/memory/108-72-0x0000000000400000-0x000000000076F000-memory.dmp	family_vidar

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d93befb933caaf737d83b0aee9577449.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d93befb933caaf737d83b0aee9577449.exe

Deletes itself 1 IoCs

pid	Process
1552	cmd.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Wine	d93befb933caaf737d83b0aee9577449.exe

Loads dropped DLL 4 IoCs

pid	Process
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
108	d93befb933caaf737d83b0aee9577449.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d93befb933caaf737d83b0aee9577449.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d93befb933caaf737d83b0aee9577449.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
460	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1588	taskkill.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	d93befb933caaf737d83b0aee9577449.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	d93befb933caaf737d83b0aee9577449.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	d93befb933caaf737d83b0aee9577449.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe
108	d93befb933caaf737d83b0aee9577449.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1588	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 1552	108	d93befb933caaf737d83b0aee9577449.exe	31
PID 108 wrote to memory of 1552	108	d93befb933caaf737d83b0aee9577449.exe	31
PID 108 wrote to memory of 1552	108	d93befb933caaf737d83b0aee9577449.exe	31
PID 108 wrote to memory of 1552	108	d93befb933caaf737d83b0aee9577449.exe	31
PID 1552 wrote to memory of 1588	1552	cmd.exe	33
PID 1552 wrote to memory of 1588	1552	cmd.exe	33
PID 1552 wrote to memory of 1588	1552	cmd.exe	33
PID 1552 wrote to memory of 1588	1552	cmd.exe	33
PID 1552 wrote to memory of 460	1552	cmd.exe	35
PID 1552 wrote to memory of 460	1552	cmd.exe	35
PID 1552 wrote to memory of 460	1552	cmd.exe	35
PID 1552 wrote to memory of 460	1552	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\d93befb933caaf737d83b0aee9577449.exe
"C:\Users\Admin\AppData\Local\Temp\d93befb933caaf737d83b0aee9577449.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im d93befb933caaf737d83b0aee9577449.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\d93befb933caaf737d83b0aee9577449.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1552
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im d93befb933caaf737d83b0aee9577449.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1588
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/108-69-0x0000000004320000-0x0000000004321000-memory.dmp

Filesize
4KB

Download
memory/108-82-0x0000000004270000-0x0000000004271000-memory.dmp

Filesize
4KB

Download
memory/108-72-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/108-73-0x0000000004370000-0x0000000004371000-memory.dmp

Filesize
4KB

Download
memory/108-74-0x0000000004220000-0x0000000004221000-memory.dmp

Filesize
4KB

Download
memory/108-75-0x0000000004250000-0x0000000004251000-memory.dmp

Filesize
4KB

Download
memory/108-70-0x00000000042A0000-0x00000000042A1000-memory.dmp

Filesize
4KB

Download
memory/108-60-0x0000000075AF1000-0x0000000075AF3000-memory.dmp

Filesize
8KB

Download
memory/108-67-0x0000000004360000-0x0000000004361000-memory.dmp

Filesize
4KB

Download
memory/108-68-0x0000000004280000-0x0000000004282000-memory.dmp

Filesize
8KB

Download
memory/108-85-0x00000000042D0000-0x00000000042D1000-memory.dmp

Filesize
4KB

Download
memory/108-84-0x0000000004230000-0x0000000004231000-memory.dmp

Filesize
4KB

Download
memory/108-83-0x0000000004260000-0x0000000004261000-memory.dmp

Filesize
4KB

Download
memory/108-71-0x0000000004300000-0x0000000004301000-memory.dmp

Filesize
4KB

Download
memory/108-81-0x00000000042F0000-0x00000000042F1000-memory.dmp

Filesize
4KB

Download
memory/108-86-0x0000000004310000-0x0000000004312000-memory.dmp

Filesize
8KB

Download
memory/108-80-0x00000000042E0000-0x00000000042E1000-memory.dmp

Filesize
4KB

Download
memory/108-62-0x0000000004240000-0x0000000004241000-memory.dmp

Filesize
4KB

Download
memory/108-61-0x00000000042C0000-0x00000000042C1000-memory.dmp

Filesize
4KB

Download
memory/108-64-0x0000000004290000-0x0000000004291000-memory.dmp

Filesize
4KB

Download
memory/108-65-0x0000000004340000-0x0000000004341000-memory.dmp

Filesize
4KB

Download
memory/108-66-0x00000000042B0000-0x00000000042B1000-memory.dmp

Filesize
4KB

Download
memory/108-63-0x0000000004330000-0x0000000004331000-memory.dmp

Filesize
4KB

Download