vidar | 093ba86ff95c854bf65b00fa0cdf654f9785c4a5695a172a1e696d06bbe29952

General

Target

Setup.exe
Size

202KB
MD5

64179e64675e822559cac6652298bdfc
SHA1

cceed3b2441146762512918af7bf7f89fb055583
SHA256

c26db97858c427d92e393396f7cb7f9e7ed8f9ce616adcc123d0ec6b055b99c9
SHA512

ef740b35ea5190f8ee47776af1f15ebdd54d39c84da5665e64f67ae6dd0f4b181e955e9a35319a5d0bd764972562e8f2bc44dbdf83c3bedf05674eae902e7280
SSDEEP

3072:EMtKztOp6KfOQqoY3ltdNjlcwsSdplkrxf+Uyecgw:ELKfOQLY3l9jlcwnlUf+z7gw

Score

10^/10

vidar 79a8b6682d9ea00c2d6adf6f75870831 discovery persistence privilege_escalation stealer

Malware Config

Extracted

Family

vidar

Version

7.7

Botnet

79a8b6682d9ea00c2d6adf6f75870831

C2

https://88.198.107.6

https://t.me/newagev

https://steamcommunity.com/profiles/76561199631487327

Attributes

profile_id_v2
79a8b6682d9ea00c2d6adf6f75870831

Signatures

Detect Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/2688-28-0x0000000000400000-0x0000000000B41000-memory.dmp	family_vidar_v7
behavioral1/memory/2688-31-0x0000000000400000-0x0000000000B41000-memory.dmp	family_vidar_v7
behavioral1/memory/2688-66-0x0000000000400000-0x0000000000B41000-memory.dmp	family_vidar_v7
behavioral1/memory/2688-75-0x0000000000400000-0x0000000000B41000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2788	2668	Setup.exe	30

Loads dropped DLL 9 IoCs

pid	Process
2788	netsh.exe
2688	openssl.exe
1104	WerFault.exe
1104	WerFault.exe
1104	WerFault.exe
1104	WerFault.exe
1104	WerFault.exe
1104	WerFault.exe
1104	WerFault.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1104	2688	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openssl.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl	Setup.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	Setup.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2668	Setup.exe
2668	Setup.exe
2788	netsh.exe
2788	netsh.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2668	Setup.exe
2788	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2668	Setup.exe
Token: SeTakeOwnershipPrivilege	2668	Setup.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2788	2668	Setup.exe	30
PID 2668 wrote to memory of 2788	2668	Setup.exe	30
PID 2668 wrote to memory of 2788	2668	Setup.exe	30
PID 2668 wrote to memory of 2788	2668	Setup.exe	30
PID 2668 wrote to memory of 2788	2668	Setup.exe	30
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2788 wrote to memory of 2688	2788	netsh.exe	32
PID 2688 wrote to memory of 1104	2688	openssl.exe	35
PID 2688 wrote to memory of 1104	2688	openssl.exe	35
PID 2688 wrote to memory of 1104	2688	openssl.exe	35
PID 2688 wrote to memory of 1104	2688	openssl.exe	35
PID 2788 wrote to memory of 2688	2788	netsh.exe	32

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\netsh.exe
  C:\Windows\SysWOW64\netsh.exe
  2⤵
  - Loads dropped DLL
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Users\Admin\AppData\Local\Temp\openssl.exe
    C:\Users\Admin\AppData\Local\Temp\openssl.exe
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 1364
      4⤵
      Loads dropped DLL
      Program crash
      PID:1104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab8548.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar856A.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\ec452f47

Filesize
6.4MB

MD5
4fd6a3f7ca5527291e11ded3149a018a

SHA1
79c9dcff91bffa809466bba83e7ed9f47afbd590

SHA256
85d86b1cadfd3e5767047955f6238479be2906fb638561bf9ceca7dbda9bfc8c

SHA512
08e1ba82af65f8d2fd662149688d048032c8987a7be729c8d1af301dde3a27c049c0331063a655c082cf20c24e784d4b4ceeee0265b4cf5505e4034eee986263

Download Submit
\Users\Admin\AppData\Local\Temp\openssl.exe

Filesize
609KB

MD5
7341914540d5ddd0a3f291e41b3a4c31

SHA1
6915a68474a2a9c7db4b27309fdcde894237984b

SHA256
33bb544e80b1c924573090d54c282d7c11d8eabf737ddaf857c98ec1a19c2299

SHA512
0db9518ea24fc8c9a991d65b6ff10be01bf059e8dfbd23c08546c0bff361a6df5f86959015afd7368e7c29da126e7de8b13ba031f6344edc98641408144825ac

Download Submit
memory/2668-1-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2668-2-0x00000000773B0000-0x0000000077559000-memory.dmp

Filesize
1.7MB

Download
memory/2668-10-0x0000000073F12000-0x0000000073F13000-memory.dmp

Filesize
4KB

Download
memory/2668-11-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2668-12-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2668-0-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2688-28-0x0000000000400000-0x0000000000B41000-memory.dmp

Filesize
7.3MB

Download
memory/2688-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-25-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-30-0x00000000773B0000-0x0000000077559000-memory.dmp

Filesize
1.7MB

Download
memory/2688-31-0x0000000000400000-0x0000000000B41000-memory.dmp

Filesize
7.3MB

Download
memory/2688-66-0x0000000000400000-0x0000000000B41000-memory.dmp

Filesize
7.3MB

Download
memory/2688-75-0x0000000000400000-0x0000000000B41000-memory.dmp

Filesize
7.3MB

Download
memory/2788-20-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2788-27-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2788-19-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download
memory/2788-16-0x00000000773B0000-0x0000000077559000-memory.dmp

Filesize
1.7MB

Download
memory/2788-14-0x0000000073F00000-0x0000000074074000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads