Windows
Analysis Report
ppZrIGFA6W.exe
Overview
General Information
Sample name: | ppZrIGFA6W.exerenamed because original name is a hash value |
Original sample name: | 587f51d39a17424559aaeaf026d20635.exe |
Analysis ID: | 1615990 |
MD5: | 587f51d39a17424559aaeaf026d20635 |
SHA1: | 8a637b6fab8ddaf2fcc6fcc28956ca9e7db58ad2 |
SHA256: | 153dfe43d602c377bcfaa7276cfe7de03b213490105bda91b9e8f3069bbb392e |
Tags: | exeQuasarRATRATuser-abuse_ch |
Infos: | |
Detection
Quasar
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Quasar RAT
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Sample uses string decryption to hide its real strings
Uses schtasks.exe or at.exe to add and modify task schedules
Allocates memory with a write watch (potentially for evading sandboxes)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
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
May sleep (evasive loops) to hinder dynamic analysis
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 execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses 32bit PE files
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
ppZrIGFA6W.exe (PID: 7388 cmdline:
"C:\Users\ user\Deskt op\ppZrIGF A6W.exe" MD5: 587F51D39A17424559AAEAF026D20635) schtasks.exe (PID: 7444 cmdline:
"schtasks" /create / tn "MicroS oft" /sc O NLOGON /tr "C:\Users \user\AppD ata\Roamin g\SubDir\m sbook.exe" /rl HIGHE ST /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) conhost.exe (PID: 7460 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) msbook.exe (PID: 7512 cmdline:
"C:\Users\ user\AppDa ta\Roaming \SubDir\ms book.exe" MD5: 587F51D39A17424559AAEAF026D20635) schtasks.exe (PID: 7540 cmdline:
"schtasks" /create / tn "MicroS oft" /sc O NLOGON /tr "C:\Users \user\AppD ata\Roamin g\SubDir\m sbook.exe" /rl HIGHE ST /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) conhost.exe (PID: 7552 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
msbook.exe (PID: 7684 cmdline:
"C:\Users\ user\AppDa ta\Roaming \SubDir\ms book.exe" MD5: 587F51D39A17424559AAEAF026D20635)
msbook.exe (PID: 7980 cmdline:
"C:\Users\ user\AppDa ta\Roaming \SubDir\ms book.exe" MD5: 587F51D39A17424559AAEAF026D20635)
- 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": ["wqo9.firewall-gateway.de:9792", "bz-frnd1.ydns.eu:2484"], "SubDirectory": "SubDir", "InstallName": "msbook.exe", "MutexName": "34fre6531-dcva6-4314-b1be5-acf372ee34155", "StartupKey": "MicroSoft", "Tag": "TR", "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 | ||
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 |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | 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 |
|
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_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | 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 |
|
System Summary |
---|
Source: | Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-02-15T22:21:49.218908+0100 | 2035595 | 1 | Domain Observed Used for C2 Detected | 195.211.190.227 | 2484 | 192.168.2.4 | 49738 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-02-15T22:21:49.218908+0100 | 2027619 | 1 | Domain Observed Used for C2 Detected | 195.211.190.227 | 2484 | 192.168.2.4 | 49738 | TCP |
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AV Detection |
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Source: | Avira: |
Source: | Avira: |
Source: | Malware Configuration Extractor: |