vidar | f42b3b3342d496edda11ff983d90f5cb38d32dca38d9d3381eadd9d063eb19f2

General

Target
12b73c8f33b64dadcf0cecf53752d1b2.exe
Size 719KB
Sample211219-rykvcsgdh5
SHA256 f42b3b3342d496edda11ff983d90f5cb38d32dca38d9d3381eadd9d063eb19f2
MD5 12b73c8f33b64dadcf0cecf53752d1b2
SHA1 d76cd3b31177484f3fd53b3e5e7fcb57a11260d0
SHA512 ea7dcd413e39c2b0debe7004b22667a338990e2455508689df8f693452c67d1a2143ecf8834d0679acf6b5cab7b0794d5c7d7adbcee7abdf937d1d386496fb0f
MD5 SHA1 SHA512

Score

10^/10

vidar 1081 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

49.1

Botnet

1081

C2

https://noc.social/@sergeev46
https://c.im/@sergeev47

Attributes

profile_id
1081

Signatures

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/1108-117-0x0000000000400000-0x0000000000535000-memory.dmp	family_vidar
behavioral2/memory/1108-116-0x00000000022D0000-0x00000000023A9000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.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	12b73c8f33b64dadcf0cecf53752d1b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	12b73c8f33b64dadcf0cecf53752d1b2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3764	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1868	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe
1108	12b73c8f33b64dadcf0cecf53752d1b2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 648	1108	12b73c8f33b64dadcf0cecf53752d1b2.exe	69
PID 1108 wrote to memory of 648	1108	12b73c8f33b64dadcf0cecf53752d1b2.exe	69
PID 1108 wrote to memory of 648	1108	12b73c8f33b64dadcf0cecf53752d1b2.exe	69
PID 648 wrote to memory of 1868	648	cmd.exe	71
PID 648 wrote to memory of 1868	648	cmd.exe	71
PID 648 wrote to memory of 1868	648	cmd.exe	71
PID 648 wrote to memory of 3764	648	cmd.exe	73
PID 648 wrote to memory of 3764	648	cmd.exe	73
PID 648 wrote to memory of 3764	648	cmd.exe	73

C:\Users\Admin\AppData\Local\Temp\12b73c8f33b64dadcf0cecf53752d1b2.exe
"C:\Users\Admin\AppData\Local\Temp\12b73c8f33b64dadcf0cecf53752d1b2.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 12b73c8f33b64dadcf0cecf53752d1b2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\12b73c8f33b64dadcf0cecf53752d1b2.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:648
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 12b73c8f33b64dadcf0cecf53752d1b2.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1868
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:3764

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/1108-115-0x0000000000946000-0x00000000009C3000-memory.dmp

Download

memory/1108-116-0x00000000022D0000-0x00000000023A9000-memory.dmp

Download

memory/1108-117-0x0000000000400000-0x0000000000535000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads