vidar | 0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5

General

Target

0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
Size

656KB
MD5

3edf49c7068f5359d6f45e25818b3b60
SHA1

c35fb0266c9914f18dd7e0c2d767284585a96ed8
SHA256

0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5
SHA512

6b04c7e1b9f1ebc9a38a4e171b52820a43ddd85c832254ada00cd5b1fbf8587175cdcd24629ea7248f30628b05821fda0cc75e45ef354688372d45a0739af141

Score

10^/10

vidar 937 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

50

Botnet

937

C2

https://mastodon.social/@prophef6

https://noc.social/@prophef5

Attributes

profile_id
937

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1608-56-0x00000000002E0000-0x0000000000385000-memory.dmp	family_vidar
behavioral1/memory/1608-57-0x0000000000400000-0x00000000004CE000-memory.dmp	family_vidar

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
564	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.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
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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
836	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
604	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	604	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 564	1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe	29
PID 1608 wrote to memory of 564	1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe	29
PID 1608 wrote to memory of 564	1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe	29
PID 1608 wrote to memory of 564	1608	0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe	29
PID 564 wrote to memory of 604	564	cmd.exe	31
PID 564 wrote to memory of 604	564	cmd.exe	31
PID 564 wrote to memory of 604	564	cmd.exe	31
PID 564 wrote to memory of 604	564	cmd.exe	31
PID 564 wrote to memory of 836	564	cmd.exe	33
PID 564 wrote to memory of 836	564	cmd.exe	33
PID 564 wrote to memory of 836	564	cmd.exe	33
PID 564 wrote to memory of 836	564	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
"C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:564
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:604
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1608-54-0x0000000000580000-0x0000000000603000-memory.dmp

Filesize
524KB

Download
memory/1608-57-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/1608-56-0x00000000002E0000-0x0000000000385000-memory.dmp

Filesize
660KB

Download
memory/1608-55-0x0000000075531000-0x0000000075533000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing