vidar | 907c112beb537b9bdc86aa35fa1bb7eabd2adb88193f4eb505f1665086c7d1d9

Analysis

max time kernel
132s
max time network
159s
platform
windows10_x64
resource
win10-en
submitted
06/09/2021, 06:29

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General

Target
073c1787d055081560ebebe789eb1282.exe
Size 679KB
Sample210906-g8x8bsdffj
SHA256 907c112beb537b9bdc86aa35fa1bb7eabd2adb88193f4eb505f1665086c7d1d9
MD5 073c1787d055081560ebebe789eb1282
SHA1 e8729a8253ba425ea73c0c055f62d83eeb84bc58
SHA512 654b038c27d081916cd9c76771d29c39f5602d0f92c6c223d19f7fd65c23cd820a128fe852ea2a05890cb161acab3c9ac86919ffe8b1da790df0cbcc03eb41d2
MD5 SHA1 SHA512

Score

10^/10

vidar 1008 spyware stealer

Malware Config

Extracted

Family

vidar

Version

40.4

Botnet

1008

https://romkaxarit.tumblr.com/

Attributes

profile_id
1008

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 804 created 4800	804	WerFault.exe	68

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/4800-115-0x0000000002520000-0x00000000025F3000-memory.dmp	family_vidar
behavioral2/memory/4800-116-0x0000000000400000-0x00000000021C7000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
4800	073c1787d055081560ebebe789eb1282.exe
4800	073c1787d055081560ebebe789eb1282.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

Program crash 16 IoCs

pid	pid_target	Process	procid_target
3288	4800	WerFault.exe	68
3880	4800	WerFault.exe	68
3356	4800	WerFault.exe	68
4284	4800	WerFault.exe	68
4288	4800	WerFault.exe	68
4296	4800	WerFault.exe	68
4368	4800	WerFault.exe	68
4528	4800	WerFault.exe	68
4424	4800	WerFault.exe	68
4388	4800	WerFault.exe	68
3324	4800	WerFault.exe	68
4632	4800	WerFault.exe	68
4656	4800	WerFault.exe	68
4260	4800	WerFault.exe	68
4228	4800	WerFault.exe	68
804	4800	WerFault.exe	68

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	073c1787d055081560ebebe789eb1282.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	073c1787d055081560ebebe789eb1282.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3288	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3880	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
3356	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4284	WerFault.exe
4288	WerFault.exe
4288	WerFault.exe
4288	WerFault.exe
4288	WerFault.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3288	WerFault.exe
Token: SeBackupPrivilege	3288	WerFault.exe
Token: SeDebugPrivilege	3288	WerFault.exe
Token: SeDebugPrivilege	3880	WerFault.exe
Token: SeDebugPrivilege	3356	WerFault.exe
Token: SeDebugPrivilege	4284	WerFault.exe
Token: SeDebugPrivilege	4288	WerFault.exe
Token: SeDebugPrivilege	4296	WerFault.exe
Token: SeDebugPrivilege	4368	WerFault.exe
Token: SeDebugPrivilege	4528	WerFault.exe
Token: SeDebugPrivilege	4424	WerFault.exe
Token: SeDebugPrivilege	4388	WerFault.exe
Token: SeDebugPrivilege	3324	WerFault.exe
Token: SeDebugPrivilege	4632	WerFault.exe
Token: SeDebugPrivilege	4656	WerFault.exe
Token: SeDebugPrivilege	4260	WerFault.exe
Token: SeDebugPrivilege	4228	WerFault.exe
Token: SeDebugPrivilege	804	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\073c1787d055081560ebebe789eb1282.exe
"C:\Users\Admin\AppData\Local\Temp\073c1787d055081560ebebe789eb1282.exe"
1⤵
- Loads dropped DLL
- Modifies system certificate store
PID:4800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 756
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 808
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 740
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 848
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 952
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1012
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1104
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1472
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1624
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1604
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1396
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1356
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1532
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1704
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1676
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 1684
  2⤵
  - Suspicious use of NtCreateProcessExOtherParentProcess
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/4800-115-0x0000000002520000-0x00000000025F3000-memory.dmp

Download

memory/4800-116-0x0000000000400000-0x00000000021C7000-memory.dmp

Download