vidar | edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512

General

Target

edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe
Size

396KB
MD5

6aee348be33ffe393fc87ff69b672058
SHA1

df6a7eb426b6987b367b7877ebf8a3e359df3b7f
SHA256

edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512
SHA512

b5cc5d74ee5f030b16d58d008e02525cdd88334b882c85dd21780e6366d11d530fc87c36f6c026c23c45fa8bcdc6a97a259243f98358e2babb5ba7180fa7607d
SSDEEP

12288:4X7sNdMWoWuD0/9zWHScwy1ymCTmcPWphKKh2lh4beEZ:q7iuDo9zWycx38mcAMa

Score

10^/10

vidar b74ef0d8ce56e494b0d83e1d5be9dbeb discovery stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

b74ef0d8ce56e494b0d83e1d5be9dbeb

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 8 IoCs

stealer

resource	yara_rule
behavioral2/memory/556-11-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-16-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-19-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-22-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-30-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-31-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-47-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7
behavioral2/memory/556-48-0x0000000000700000-0x0000000000976000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Loads dropped DLL 1 IoCs

pid	Process
1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1556 set thread context of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 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	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regiis.exe

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	aspnet_regiis.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	aspnet_regiis.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
556	aspnet_regiis.exe
556	aspnet_regiis.exe
556	aspnet_regiis.exe
556	aspnet_regiis.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88
PID 1556 wrote to memory of 556	1556	edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe	88

C:\Users\Admin\AppData\Local\Temp\edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe
"C:\Users\Admin\AppData\Local\Temp\edd1f672869f737532abca4244f8cd5f4f8701c8735ee1a8f86be50229d40512.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:556

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1020,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=4080 /prefetch:8
1⤵
PID:740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\msvcp110.dll

Filesize
585KB

MD5
c36e3befee0fb55d0387f51d03adf39b

SHA1
2d6f584441f60231b41ef6b0be5c334bed4c3df6

SHA256
4da6e6a8fc9cf2116d77e9e7768c47efb935de5e00240153fb4877e9e3e34f73

SHA512
5de3bc3cf127c68b608217ff2a7d8237f68dbf58cb134427e1b0c9c34702892e3cd50b273d434f5c00e0cecc6419a571d6da82dde8d861efaf30b45ec16d0972

Download Submit
memory/556-31-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-22-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-48-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-47-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-11-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-16-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-33-0x00000000220B0000-0x000000002230F000-memory.dmp

Filesize
2.4MB

Download
memory/556-30-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/556-19-0x0000000000700000-0x0000000000976000-memory.dmp

Filesize
2.5MB

Download
memory/1556-23-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/1556-10-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/1556-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/1556-2-0x0000000005880000-0x0000000005886000-memory.dmp

Filesize
24KB

Download
memory/1556-1-0x0000000000F40000-0x0000000000FAA000-memory.dmp

Filesize
424KB

Download
memory/1556-5-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download

Analysis

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