Malware Analysis Report

2025-08-10 19:49

Sample ID 250702-xjs53szvgv
Target 2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar
SHA256 596fef4197fa1900b3de0094fa649da8ff19c78c1c382f2dc1bd8db550ce6ab3
Tags
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

596fef4197fa1900b3de0094fa649da8ff19c78c1c382f2dc1bd8db550ce6ab3

Threat Level: Shows suspicious behavior

The file 2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar was found to be: Shows suspicious behavior.

Malicious Activity Summary


Executes dropped EXE

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2025-07-02 18:53

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-02 18:53

Reported

2025-07-02 18:55

Platform

win10v2004-20250610-en

Max time kernel

104s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\alg.exe C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp

Files

memory/5348-0-0x0000000140000000-0x0000000140163000-memory.dmp

memory/5348-7-0x0000000000510000-0x0000000000570000-memory.dmp

memory/5348-2-0x0000000000510000-0x0000000000570000-memory.dmp

memory/5348-12-0x0000000000510000-0x0000000000570000-memory.dmp

memory/5348-13-0x0000000140000000-0x0000000140163000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-07-02 18:53

Reported

2025-07-02 18:55

Platform

win11-20250502-en

Max time kernel

100s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\System32\alg.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\alg.exe C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e6da5b9585c712da81f9e1e0deea43c7_black-basta_vidar.exe"

C:\Windows\System32\alg.exe

C:\Windows\System32\alg.exe

Network

Files

memory/1088-0-0x0000000140000000-0x0000000140163000-memory.dmp

memory/1088-1-0x00000000020C0000-0x0000000002120000-memory.dmp

memory/1088-9-0x00000000020C0000-0x0000000002120000-memory.dmp

memory/1088-14-0x00000000020C0000-0x0000000002120000-memory.dmp

C:\Windows\System32\alg.exe

MD5 fe9078ee3c0f7c47f6fb59b027cb4421
SHA1 fd2c7c6f2b131cb7b61e24382af45f69d4d62cb0
SHA256 8061647059fce38460d2a6f5633812df1762e6b57a92ea721299d5408db5c496
SHA512 1c7fb8df288a9fbdcbc2d42b617dab0c1c7af91741b8f83c5a1a02a51b00501ff992c45dce209f506b78869a98e8bc4a32640afc05b1696c58593ef6db01e440

memory/648-16-0x0000000140000000-0x00000001400AA000-memory.dmp

memory/1088-17-0x0000000140000000-0x0000000140163000-memory.dmp

memory/648-18-0x0000000140000000-0x00000001400AA000-memory.dmp