vidar | 4227ee74e68b799efeb3613493f4814a81e16fec32c88bcc3fdcc7eae35b60bc

General

Target
f1e89356f7a21887e4b5db1160717abf.exe
Size 581KB
Sample210730-w7ctrj2r2s
SHA256 4227ee74e68b799efeb3613493f4814a81e16fec32c88bcc3fdcc7eae35b60bc
MD5 f1e89356f7a21887e4b5db1160717abf
SHA1 ff7409ec73309460650dccc2e44efb8595c246d7
SHA512 891734162b8f4b5c1d9cc08cc9c8140edbdf8af2ca4b0819a860cc1c1887d041e25db1b4282069ebeea6d764846d5d20ba3e836d923b1e3886f468236b244e51
MD5 SHA1 SHA512

Score

10^/10

vidar 921 spyware stealer

Malware Config

Extracted

Family

vidar

Version

39.8

Botnet

921

C2

https://xeronxikxxx.tumblr.com/

Attributes

profile_id
921

Signatures

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

Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/1840-120-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral2/memory/1840-121-0x000000000046B76D-mapping.dmp	family_vidar
behavioral2/memory/1840-122-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.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 652 set thread context of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1188	1840	WerFault.exe	78

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	f1e89356f7a21887e4b5db1160717abf.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	f1e89356f7a21887e4b5db1160717abf.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.exe
1840	f1e89356f7a21887e4b5db1160717abf.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe
1188	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	652	f1e89356f7a21887e4b5db1160717abf.exe
Token: SeRestorePrivilege	1188	WerFault.exe
Token: SeBackupPrivilege	1188	WerFault.exe
Token: SeDebugPrivilege	1188	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78
PID 652 wrote to memory of 1840	652	f1e89356f7a21887e4b5db1160717abf.exe	78

C:\Users\Admin\AppData\Local\Temp\f1e89356f7a21887e4b5db1160717abf.exe
"C:\Users\Admin\AppData\Local\Temp\f1e89356f7a21887e4b5db1160717abf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:652
- C:\Users\Admin\AppData\Local\Temp\f1e89356f7a21887e4b5db1160717abf.exe
  C:\Users\Admin\AppData\Local\Temp\f1e89356f7a21887e4b5db1160717abf.exe
  2⤵
  - Loads dropped DLL
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  PID:1840
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 1712
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1188

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/652-114-0x00000000003D0000-0x00000000003D1000-memory.dmp

Download

memory/652-116-0x0000000004C90000-0x0000000004C91000-memory.dmp

Download

memory/652-117-0x0000000000D80000-0x0000000000D9A000-memory.dmp

Download

memory/652-118-0x0000000004D20000-0x0000000004D21000-memory.dmp

Download

memory/652-119-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

Download

memory/1840-120-0x0000000000400000-0x00000000004A1000-memory.dmp

Download

memory/1840-122-0x0000000000400000-0x00000000004A1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads