vidar | 0fe40289008f481b84b73f77c87efd5a737df057e19d9799a7c8e5b0b3a29539

General

Target
ad91056d751fd1a37689daaa789c2e19.exe
Size 599KB
Sample210801-eee2xqpsdx
SHA256 0fe40289008f481b84b73f77c87efd5a737df057e19d9799a7c8e5b0b3a29539
MD5 ad91056d751fd1a37689daaa789c2e19
SHA1 52b17f69cb9a921a678b8d7ed17e8a490c10a93a
SHA512 13aacf2969d4e4e8ee30b26fb6016cbbe72474719d2a44c30941c07bb2909ec23b4a860e994ceb7b782d4964dc38e341bd96a41a239fe5d24e5815baaf54f860
MD5 SHA1 SHA512

Score

10^/10

vidar 903 spyware stealer

Malware Config

Extracted

Family

vidar

Version

39.8

Botnet

903

C2

https://xeronxikxxx.tumblr.com/

Attributes

profile_id
903

Signatures

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

Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/212-118-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral2/memory/212-119-0x000000000046B76D-mapping.dmp	family_vidar
behavioral2/memory/212-120-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 804 set thread context of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1276	212	WerFault.exe	77

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	ad91056d751fd1a37689daaa789c2e19.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	ad91056d751fd1a37689daaa789c2e19.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.exe
212	ad91056d751fd1a37689daaa789c2e19.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe
1276	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	ad91056d751fd1a37689daaa789c2e19.exe
Token: SeRestorePrivilege	1276	WerFault.exe
Token: SeBackupPrivilege	1276	WerFault.exe
Token: SeDebugPrivilege	1276	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77
PID 804 wrote to memory of 212	804	ad91056d751fd1a37689daaa789c2e19.exe	77

C:\Users\Admin\AppData\Local\Temp\ad91056d751fd1a37689daaa789c2e19.exe
"C:\Users\Admin\AppData\Local\Temp\ad91056d751fd1a37689daaa789c2e19.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Local\Temp\ad91056d751fd1a37689daaa789c2e19.exe
  C:\Users\Admin\AppData\Local\Temp\ad91056d751fd1a37689daaa789c2e19.exe
  2⤵
  - Loads dropped DLL
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  PID:212
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1696
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/212-118-0x0000000000400000-0x00000000004A1000-memory.dmp

Download

memory/212-120-0x0000000000400000-0x00000000004A1000-memory.dmp

Download

memory/804-114-0x0000000000940000-0x0000000000941000-memory.dmp

Download

memory/804-116-0x0000000005480000-0x0000000005481000-memory.dmp

Download

memory/804-117-0x0000000002D90000-0x0000000002DB2000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads