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Windows
Analysis Report
BJtvb5Vdhh.exe
Overview
General Information
Sample name: | BJtvb5Vdhh.exerenamed because original name is a hash value |
Original sample name: | a06fb340d32ab66caf6d851719c4e51e77a3208b337a0bca99879cfaba35d2c7.exe |
Analysis ID: | 1578207 |
MD5: | 18614ee994ac149ba306d530651d627c |
SHA1: | fbb67a2e7723e9c08b9faba8a4e5b1104ffefaed |
SHA256: | a06fb340d32ab66caf6d851719c4e51e77a3208b337a0bca99879cfaba35d2c7 |
Tags: | 51-15-17-193exeuser-JAMESWT_MHT |
Infos: | |
Detection
Quasar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Quasar RAT
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Modifies the context of a thread in another process (thread injection)
Sets debug register (to hijack the execution of another thread)
Yara detected Generic Downloader
Allocates memory with a write watch (potentially for evading sandboxes)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
PE / OLE file has an invalid certificate
PE file contains an invalid checksum
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- BJtvb5Vdhh.exe (PID: 7592 cmdline:
"C:\Users\ user\Deskt op\BJtvb5V dhh.exe" MD5: 18614EE994AC149BA306D530651D627C)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Quasar RAT, QuasarRAT | Quasar RAT is a malware family written in .NET which is used by a variety of attackers. The malware is fully functional and open source, and is often packed to make analysis of the source more difficult. |
{"Version": "1.4.1", "Host:Port": "51.15.17.193:4782;", "SubDirectory": "SubDir", "InstallName": "Client.exe", "MutexName": "4cdc792e-d5cc-4480-93ab-ecbd2e6b9073", "StartupKey": "Quasar Client Startup", "Tag": "Bat IS", "LogDirectoryName": "Logs", "ServerSignature": "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", "ServerCertificate": "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"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | Joe Security | ||
MAL_QuasarRAT_May19_1 | Detects QuasarRAT malware | Florian Roth |
| |
Click to see the 5 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | Joe Security | ||
MAL_QuasarRAT_May19_1 | Detects QuasarRAT malware | Florian Roth |
| |
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
MALWARE_Win_QuasarStealer | Detects Quasar infostealer | ditekshen |
| |
Click to see the 13 entries |
⊘No Sigma rule has matched
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-19T12:32:21.842095+0100 | 2035595 | 1 | Domain Observed Used for C2 Detected | 51.15.17.193 | 4782 | 192.168.2.9 | 49725 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-19T12:32:21.842095+0100 | 2027619 | 1 | Domain Observed Used for C2 Detected | 51.15.17.193 | 4782 | 192.168.2.9 | 49725 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Malware Configuration Extractor: |