MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3. 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: 21


Intelligence 21 IOCs 1 YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3
SHA3-384 hash: e7c34d2faa7a107b43b48f05d80eb6a918a94b896ffc2508f0b5982ea3a6859966060b3ae8fe8560a21c858d8feb50de
SHA1 hash: 8f390ab5ad5c89667e90baa71f946be3893d3c49
MD5 hash: 28f9c04459f2ecac07c84eefb1c90d97
humanhash: missouri-mobile-texas-washington
File name:28f9c04459f2ecac07c84eefb1c90d97.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'265'536 bytes
First seen:2025-10-27 09:05:07 UTC
Last seen:2025-11-22 23:59:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:GvBt62XlaSFNWPjljiFa2RoUYIBTe1LoGlqTHHB72eh2NT:Gvr62XlaSFNWPjljiFXRoUYIheN
Threatray 1'450 similar samples on MalwareBazaar
TLSH T133E57B0437F85E72E26BD6B7D5B1501263F0F82AF363EB1B6581A37A1C93B5088416B7
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 abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
82.64.201.145:43710

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
82.64.201.145:43710 https://threatfox.abuse.ch/ioc/1627367/

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
pB8TeMO.exe
Verdict:
Malicious activity
Analysis date:
2025-10-27 09:05:52 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/f18aacac-2c8f-4f63-a79a-45429f25d522

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/34255/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ff35ef6c859164aa652b98
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-27T06:09:00Z UTC
Last seen:
2025-10-27T10:13:00Z UTC
Hits:
~10
Detections:
PDM:Trojan.Win32.Tasker.cust Trojan.MSIL.Quasar.bjz Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a Trojan.MSIL.Donut.sb HEUR:Trojan-Spy.MSIL.Agent.sb HEUR:Trojan.MSIL.Quasar.gen
Link:
https://opentip.kaspersky.com/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3/results?tab=lookup
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee67036a-dc30-433d-9cc9-e611630c8fa0
Result
Threat name:
AsyncRAT, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1802257
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1802257 Sample: csH53DLpH6.exe Startdate: 27/10/2025 Architecture: WINDOWS Score: 100 31 ipwho.is 2->31 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 7 other signatures 2->51 9 csH53DLpH6.exe 5 2->9         started        13 QKnxJDdjK7.exe 3 2->13         started        signatures3 process4 file5 27 C:\Windows\System32\...\QKnxJDdjK7.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\csH53DLpH6.exe.log, CSV 9->29 dropped 53 Drops executables to the windows directory (C:\Windows) and starts them 9->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 9->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->57 15 QKnxJDdjK7.exe 14 2 9->15         started        19 schtasks.exe 1 9->19         started        signatures6 process7 dnsIp8 33 82.64.201.145, 43710, 49715 PROXADFR France 15->33 35 ipwho.is 147.135.36.89, 443, 49721 OVHFR United States 15->35 37 Antivirus detection for dropped file 15->37 39 Multi AV Scanner detection for dropped file 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 43 Installs a global keyboard hook 15->43 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures9 process10 process11 25 conhost.exe 21->25         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/28f9c04459f2ecac07c84eefb1c90d97
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-10-27 09:05:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qblkg7gwl4vcjro5xgmehtdujwhxr5567wk5zv37trgfx7dpixjq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
1888dad764c782fdb3d8cfce0916fd197e645231f3cdc28e4d45d1558a0935db
QuasarRAT
5e532dc348cea226907ee286cc623670b87c8f642262ea771b226b7b684fc7d9
QuasarRAT
7805a1e88a2164f755febc4db00d53851f72e8dcaacfe1742c7e2abecdd09b6c
QuasarRAT
b98bd65a0927c3dfc381b13df96e666fa2bb5bead3284864bc904b3ad657a6dc
QuasarRAT
c1b011778271c50b58e7d1cc972434f98671118a3dd381dc4fd5f52b5f2c42a2
QuasarRAT
error
QuasarRAT
+ 1'440 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:nazar execution persistence spyware trojan
Link:
https://tria.ge/reports/251027-k2swta1rhm/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in System32 directory
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
82.64.201.145:43710
Verdict:
Malicious
Tags:
rat quasar_rat stealer Win.Malware.Generic-9883083-0
YARA:
MAL_QuasarRAT_May19_1 malware_windows_quasarrat win_quasar_rat_client MALWARE_Win_Quasarstealer
Link:
https://app.threat.zone/submission/e37381ad-71d0-4f02-9f23-e5e69344a35f
Unpacked files
SH256 hash:
8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3
MD5 hash:
28f9c04459f2ecac07c84eefb1c90d97
SHA1 hash:
8f390ab5ad5c89667e90baa71f946be3893d3c49
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/9721e022-52fd-4ae5-aa94-30a969794bc1/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8056a37cd65f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8056a37cd65f2a24c5ddb99843cc744d8f78f7befd95dcd77f9c4c5bfc6f45d3

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
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_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

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/34255/

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