vidar | b802eb0f4a10d4aecc9015ee86ddc9b1249212dcabc2ecb6aa97418d0de7722b

General

Target

SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
Size

68KB
MD5

5a4ccccb90b0aaa3b248d4f0dde38823
SHA1

be8f1d791a81696cd58e7f837a97aaea58eeb26a
SHA256

b802eb0f4a10d4aecc9015ee86ddc9b1249212dcabc2ecb6aa97418d0de7722b
SHA512

a75db1a19a6bc4f5a9c5437864cb01e5d139ef56365e3d320035fcfa65a713886f78a6fe2f3eb130e35bed1a25e4fe73d712b6e03ed6bb373e73a6c3a3cb7737
SSDEEP

1536:T7os4AvSdEcNj56sWOr3H8+wMiT8om0QSnouy8:TBvSdEcHWswxQJ0Zout

Score

10^/10

vidar af458cf23e4b27326a35871876cc63d9 credential_access discovery spyware stealer upx

Malware Config

Extracted

Family

vidar

Version

10.6

Botnet

af458cf23e4b27326a35871876cc63d9

C2

https://steamcommunity.com/profiles/76561199747278259

https://t.me/armad2a

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.1 Safari/537.36

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1976-36-0x00000000003E0000-0x0000000000628000-memory.dmp	family_vidar_v7
behavioral1/memory/1976-38-0x00000000003E0000-0x0000000000628000-memory.dmp	family_vidar_v7

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

Deletes itself 1 IoCs

pid	Process
1212	cmd.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1976-0-0x00000000003E0000-0x0000000000628000-memory.dmp	upx
behavioral1/memory/1976-36-0x00000000003E0000-0x0000000000628000-memory.dmp	upx
behavioral1/memory/1976-38-0x00000000003E0000-0x0000000000628000-memory.dmp	upx

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
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).

System Information Discovery
T1082

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	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2412	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1212	1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe	33
PID 1976 wrote to memory of 1212	1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe	33
PID 1976 wrote to memory of 1212	1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe	33
PID 1976 wrote to memory of 1212	1976	SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe	33
PID 1212 wrote to memory of 2412	1212	cmd.exe	35
PID 1212 wrote to memory of 2412	1212	cmd.exe	35
PID 1212 wrote to memory of 2412	1212	cmd.exe	35
PID 1212 wrote to memory of 2412	1212	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.37477.6298.10622.exe" & rd /s /q "C:\ProgramData\KKJKEBKFCAAE" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1212
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CabA6E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA91.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1976-0-0x00000000003E0000-0x0000000000628000-memory.dmp

Filesize
2.3MB

Download
memory/1976-36-0x00000000003E0000-0x0000000000628000-memory.dmp

Filesize
2.3MB

Download
memory/1976-38-0x00000000003E0000-0x0000000000628000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing