MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb. 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: 18


Intelligence 18 IOCs YARA 33 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb
SHA3-384 hash: 7d77d1d3b74a02d653f046eceea848b29dbfc280e98eebe682516f3d9950d4a3a0a4e1b4330ee28f8810251210350f3c
SHA1 hash: 994810ebd12f0ab08262c15030b9abf68f33ceaa
MD5 hash: 0474f309e0b9af5222f03726017b96cc
humanhash: mockingbird-texas-lion-queen
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:356'864 bytes
First seen:2025-11-23 00:10:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 6144:sLwb/c2L0t+EL2kbyrH8Bx0LvYmS6J9EZGO+:OH2LgS38GBS0EZGO+
Threatray 720 similar samples on MalwareBazaar
TLSH T12A749D1377E8DA3BD1FD173AE43206194BB0D4677612E38B5A5AA5F82D233868D443B3
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Hexastrike
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
Client.exe
Verdict:
Malicious activity
Analysis date:
2025-11-23 10:39:20 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/3cf3c5ea-be07-4b36-b4f3-22c2bf000bbe

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39970/
Detection(s):
Win.Packed.Generic-9829635-0
Create hunting rule

Win.Packed.Generic-9830106-0
Create hunting rule

Win.Packed.QuasarRAT-10012744-0
Create hunting rule

Win.Trojan.Generic-6295765-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6922638f140de26f6c2c6fce
Tags:
keylogger dropper quasar spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 byteguard fingerprint infostealer keylogger lolbin obfuscated obfuscated packed quasar rat reconnaissance runonce stealer vbnet vermin xrat
Link:
https://www.filescan.io/uploads/69225eabeecb08e4aa453174/reports/d205269e-598f-40c1-ad81-f5ceb6f648b7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-22T00:17:00Z UTC
Last seen:
2025-11-22T09:56:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb/results?tab=lookup
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb
Verdict:
QuasarRat
YARA:
16 match(es)
Tags:
.Net Executable Malicious Managed .NET PE (Portable Executable) PE Memory-Mapped (Dump) QuasarRat RAT SOS: 0.61
Malware Config
C2 Extraction:
PORT: toptop
CNC: toptop
PORT: 4782
CNC: toptoptop3.online
PORT: 4782
CNC: 37.19.193.217
Link:
https://app.malva.re/file/0474f309e0b9af5222f03726017b96cc
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-11-22 05:09:39 UTC
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6atut2mqbok6tdn3wd4yiw32a4mgsryo5ia4o3scx3z5sr2tx7fq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
268501cbc4704142a83673aab0b20dc7b8bf9221b70f0e7bbb42f072ed341e7a
QuasarRAT
4090ddde1d1ffb846bd2acf0e0f6b355ea151e0b38c33f029049ac6e93919043
QuasarRAT
768cb6a3e98f0bffc211f981af358b554b6a3cdbc1fe94e6daf20b21a54f2a9b
QuasarRAT
error
QuasarRAT
f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb
QuasarRAT
f8a08657c3106f9e068888f543caf561825954ebcd5b17c81205ed3da5c9d883
QuasarRAT
+ 710 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:aug22 discovery
Link:
https://tria.ge/reports/251123-bhsbhaslen/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Malware Config
C2 Extraction:
37.19.193.217:4782
toptoptop3.online:4782
toptoptop3.site:4782
Verdict:
Malicious
Tags:
rat quasar_rat vermin Win.Packed.Generic-9829635-0
YARA:
JPCERTCC_Quasar MALWARE_Win_QuasarRAT MAL_QuasarRAT_May19_1 Quasar_RAT_1 Quasar_RAT_2 Vermin_Keylogger_Jan18_1 Windows_Trojan_Quasarrat_e52df647 malware_Quasar_strings malware_windows_quasarrat win_quasar_rat_client
Link:
https://app.threat.zone/submission/110da38b-1269-4af1-93ab-b4f7b12e7dfa
Unpacked files
SH256 hash:
f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb
MD5 hash:
0474f309e0b9af5222f03726017b96cc
SHA1 hash:
994810ebd12f0ab08262c15030b9abf68f33ceaa
Detections:
win_quasar_rat_auto
Create hunting rule
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/73235790-51d5-4efc-be4e-d3f50543845e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.42
Link:
https://yomi.yoroi.company/submissions/f02749e9900b95e98dbbb0f9845b7a071869470eea01c76e42bef3d94753bfcb

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
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:malware_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
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
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:QuasarRAT
Create hunting rule
Author:ditekshen
Description:QuasarRAT payload
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Quasar_RAT_1
Create hunting rule
Author:@SOCRadar
Description:Detects Quasar RAT
Rule name:Quasar_RAT_1
Create hunting rule
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_RID2B54
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Description:Detects Quasar RAT
Rule name:Quasar_RAT_2_RID2B55
Create hunting rule
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
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
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
Create hunting rule
Author:Elastic Security
Rule name:win_quasar_rat_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/39970/

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