vidar | 8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131cfc3956c1949526fbb4

Analysis

max time kernel
75s
max time network
142s
platform
windows10_x64
resource
win10v20210408
submitted
06/09/2021, 23:47

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General

Target
8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe
Size 674KB
Sample210906-3svm6abeg8
SHA256 8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131cfc3956c1949526fbb4
MD5 f9e487080d10b70372527dec5f073210
SHA1 b3bef1090d707e8177fb919fb0a9ffcf094a09c5
SHA512 da078809302f52764474071ffc0f829b8c3096eb9c9f237cc9a5b30992349c2859703102eb158c07caeb81563740a24337dbc4ef502926677619ab4a94875b7b
MD5 SHA1 SHA512

Score

10^/10

vidar 828 spyware stealer

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
828

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3772 created 996	3772	WerFault.exe	67

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/996-114-0x00000000024C0000-0x0000000002591000-memory.dmp	family_vidar
behavioral2/memory/996-115-0x0000000000400000-0x00000000021C6000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
996	8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe
996	8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.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
3524	996	WerFault.exe	67
212	996	WerFault.exe	67
3856	996	WerFault.exe	67
2196	996	WerFault.exe	67
3028	996	WerFault.exe	67
3396	996	WerFault.exe	67
508	996	WerFault.exe	67
3952	996	WerFault.exe	67
3812	996	WerFault.exe	67
2548	996	WerFault.exe	67
2348	996	WerFault.exe	67
2224	996	WerFault.exe	67
648	996	WerFault.exe	67
3524	996	WerFault.exe	67
2512	996	WerFault.exe	67
3772	996	WerFault.exe	67

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	8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
3524	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
212	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
3856	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
2196	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe
3028	WerFault.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3524	WerFault.exe
Token: SeBackupPrivilege	3524	WerFault.exe
Token: SeDebugPrivilege	3524	WerFault.exe
Token: SeDebugPrivilege	212	WerFault.exe
Token: SeDebugPrivilege	3856	WerFault.exe
Token: SeDebugPrivilege	2196	WerFault.exe
Token: SeDebugPrivilege	3028	WerFault.exe
Token: SeDebugPrivilege	3396	WerFault.exe
Token: SeDebugPrivilege	508	WerFault.exe
Token: SeDebugPrivilege	3952	WerFault.exe
Token: SeDebugPrivilege	3812	WerFault.exe
Token: SeDebugPrivilege	2548	WerFault.exe
Token: SeDebugPrivilege	2348	WerFault.exe
Token: SeDebugPrivilege	2224	WerFault.exe
Token: SeDebugPrivilege	648	WerFault.exe
Token: SeDebugPrivilege	3524	WerFault.exe
Token: SeDebugPrivilege	2512	WerFault.exe
Token: SeDebugPrivilege	3772	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe
"C:\Users\Admin\AppData\Local\Temp\8c98a7c9446f00b61acdccc30d9e50f3ee651530a4131.exe"
1⤵
- Loads dropped DLL
- Modifies system certificate store
PID:996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 760
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 832
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 776
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 828
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 920
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1088
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1396
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1328
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1100
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1620
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1660
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1700
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1400
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1384
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1748
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1540
  2⤵
  - Suspicious use of NtCreateProcessExOtherParentProcess
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3772

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

Replay Monitor

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Downloads

memory/996-114-0x00000000024C0000-0x0000000002591000-memory.dmp

Download

memory/996-115-0x0000000000400000-0x00000000021C6000-memory.dmp

Download