vidar | 261a6b5bd61c119a30c55227f035b3fa9e4d34fdbdcf97663cbcf771fc62a25f

General

Target
38ee5e5c6afe58e651332c20ebef745c.exe
Size 691KB
Sample210619-js3qysbryn
SHA256 261a6b5bd61c119a30c55227f035b3fa9e4d34fdbdcf97663cbcf771fc62a25f
MD5 38ee5e5c6afe58e651332c20ebef745c
SHA1 a5754c72db1864fadb7a73ffe4654d5784f45365
SHA512 4f18ae2515bb71b3f13356b2a09eb324f36483b1438cd1c57cdba7ffcee80235315f2f2a03724a4899ae38e0e52726dcbed3950b5f7d9baccc2be67f44e4f839
MD5 SHA1 SHA512

Score

10^/10

vidar 313 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

39.3

Botnet

313

C2

https://bandakere.tumblr.com

Attributes

profile_id
313

Signatures

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

Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/3988-126-0x0000000000400000-0x000000000049B000-memory.dmp	family_vidar
behavioral2/memory/3988-127-0x00000000004680AD-mapping.dmp	family_vidar
behavioral2/memory/3988-128-0x0000000000400000-0x000000000049B000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3916 set thread context of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	38ee5e5c6afe58e651332c20ebef745c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	38ee5e5c6afe58e651332c20ebef745c.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
848	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2088	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	38ee5e5c6afe58e651332c20ebef745c.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	38ee5e5c6afe58e651332c20ebef745c.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3916	38ee5e5c6afe58e651332c20ebef745c.exe
3916	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe
3988	38ee5e5c6afe58e651332c20ebef745c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	38ee5e5c6afe58e651332c20ebef745c.exe
Token: SeDebugPrivilege	2088	taskkill.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3916 wrote to memory of 3988	3916	38ee5e5c6afe58e651332c20ebef745c.exe	79
PID 3988 wrote to memory of 1344	3988	38ee5e5c6afe58e651332c20ebef745c.exe	80
PID 3988 wrote to memory of 1344	3988	38ee5e5c6afe58e651332c20ebef745c.exe	80
PID 3988 wrote to memory of 1344	3988	38ee5e5c6afe58e651332c20ebef745c.exe	80
PID 1344 wrote to memory of 2088	1344	cmd.exe	82
PID 1344 wrote to memory of 2088	1344	cmd.exe	82
PID 1344 wrote to memory of 2088	1344	cmd.exe	82
PID 1344 wrote to memory of 848	1344	cmd.exe	83
PID 1344 wrote to memory of 848	1344	cmd.exe	83
PID 1344 wrote to memory of 848	1344	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\38ee5e5c6afe58e651332c20ebef745c.exe
"C:\Users\Admin\AppData\Local\Temp\38ee5e5c6afe58e651332c20ebef745c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\38ee5e5c6afe58e651332c20ebef745c.exe
  C:\Users\Admin\AppData\Local\Temp\38ee5e5c6afe58e651332c20ebef745c.exe
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im 38ee5e5c6afe58e651332c20ebef745c.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\38ee5e5c6afe58e651332c20ebef745c.exe" & del C:\ProgramData\*.dll & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1344
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im 38ee5e5c6afe58e651332c20ebef745c.exe /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:2088
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

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

Command and Control

Exfiltration

Impact

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Downloads

memory/3916-119-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Download

memory/3916-114-0x00000000006E0000-0x00000000006E1000-memory.dmp

Download

memory/3916-125-0x00000000052E0000-0x0000000005343000-memory.dmp

Download

memory/3916-120-0x0000000005460000-0x00000000054FA000-memory.dmp

Download

memory/3916-118-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

Download

memory/3916-117-0x00000000050C0000-0x00000000050C1000-memory.dmp

Download

memory/3916-116-0x0000000005520000-0x0000000005521000-memory.dmp

Download

memory/3988-126-0x0000000000400000-0x000000000049B000-memory.dmp

Download

memory/3988-128-0x0000000000400000-0x000000000049B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads