MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7519512e0b882ab10bc5e0bcf8d0769bdd96c532443c700713c8ac570084acb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



QuasarRAT


Vendor detections: 20


Intelligence 20 IOCs YARA 31 File information Comments

SHA256 hash: c7519512e0b882ab10bc5e0bcf8d0769bdd96c532443c700713c8ac570084acb
SHA3-384 hash: 02aa39b25527fa0ea4c417334f216e513ad1201622d5fc283a19bc1d10d80d67dc21e5f79532e34e93bf9a9da79fce89
SHA1 hash: 5c5b82a1ec1b515a6cc6f922eafffc8a70e4841f
MD5 hash: 322a3c2aa4b0771aa57a6e61f6aa16c8
humanhash: hydrogen-stream-xray-xray
File name:decode_d1213cfcb6ee6791dcf785b67585548f1168d642e005e30d1682ea53c718e57d
Download: download sample
Signature QuasarRAT
File size:356'352 bytes
First seen:2024-09-12 15:39:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep 6144:1XNHXf500Mds8a2ohTPxbADTUsgfIwbvGe:pd50pQWTUswIwbvGe
Threatray 548 similar samples on MalwareBazaar
TLSH T10D746B1367A8EA3BD1FE173AE43206155BB0D507B716E38B9A6851FC6C123868D817F3
TrID 40.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
31.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
9.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
5.7% (.EXE) Win64 Executable (generic) (10523/12/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter jstrosch
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
389
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
decode_d1213cfcb6ee6791dcf785b67585548f1168d642e005e30d1682ea53c718e57d
Verdict:
Malicious activity
Analysis date:
2024-09-12 15:43:03 UTC
Tags:
evasion rat quasar remote

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
Discovery Generic Infostealer Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm crypto fingerprint hook infostealer keylogger lolbin lolbin quasar quasarrat rat schtasks shell32 stealer stealer vbnet vermin xrat
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Quasar RAT
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1510226 Sample: decode_d1213cfcb6ee6791dcf7... Startdate: 12/09/2024 Architecture: WINDOWS Score: 100 32 qskv.duckdns.org 2->32 34 ip-api.com 2->34 38 Suricata IDS alerts for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 46 8 other signatures 2->46 8 decode_d1213cfcb6ee6791dcf785b67585548f1168d642e005e30d1682ea53c718e57d.exe 15 6 2->8         started        signatures3 44 Uses dynamic DNS services 32->44 process4 dnsIp5 36 ip-api.com 208.95.112.1, 49702, 80 TUT-ASUS United States 8->36 30 C:\Users\user\AppData\...\AdVHQE1khhZD.bat, DOS 8->30 dropped 50 Detected Quasar RAT 8->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->52 54 Installs a global keyboard hook 8->54 13 cmd.exe 1 8->13         started        16 WerFault.exe 19 16 8->16         started        file6 signatures7 process8 signatures9 56 Uses ping.exe to sleep 13->56 58 Uses ping.exe to check the status of other devices and networks 13->58 18 decode_d1213cfcb6ee6791dcf785b67585548f1168d642e005e30d1682ea53c718e57d.exe 3 13->18         started        22 conhost.exe 13->22         started        24 PING.EXE 1 13->24         started        26 chcp.com 1 13->26         started        process10 file11 28 decode_d1213cfcb6e...a53c718e57d.exe.log, ASCII 18->28 dropped 48 Detected Quasar RAT 18->48 signatures12
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Status:
Malicious
First seen:
2024-09-12 15:40:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:server discovery spyware trojan
Behaviour
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Looks up external IP address via web service
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
qskv.duckdns.org:54790
Unpacked files
SH256 hash:
c7519512e0b882ab10bc5e0bcf8d0769bdd96c532443c700713c8ac570084acb
MD5 hash:
322a3c2aa4b0771aa57a6e61f6aa16c8
SHA1 hash:
5c5b82a1ec1b515a6cc6f922eafffc8a70e4841f
Detections:
QuasarRAT malware_windows_xrat_quasarrat CN_disclosed_20180208_KeyLogger_1 cn_utf8_windows_terminal Quasar_RAT_2 Quasar Vermin_Keylogger_Jan18_1 MAL_QuasarRAT_May19_1 Quasar_RAT_1 xRAT_1 win_quasarrat_j1
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:CN_disclosed_20180208_KeyLogger_1
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:Detect_APT29_WINELOADER_Backdoor
Author:daniyyell
Description:Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends
Reference:https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:malware_Quasar_strings
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Quasar
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:Quasar_RAT_1
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1
Author:@SOCRadar
Description:Detects Quasar RAT
Rule name:Quasar_RAT_1_RID2B54
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Description:Detects Quasar RAT
Rule name:Quasar_RAT_2_RID2B55
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Author:Florian Roth (Nextron Systems)
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Trojan_Quasarrat_e52df647
Author:Elastic Security
Rule name:win_quasar_rat_client
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.
Rule name:xRAT_1
Author:Florian Roth (Nextron Systems)
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments