MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c. 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: 22

Intelligence 22 IOCs 1 YARA 30 File information Comments

SHA256 hash:	7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c
SHA3-384 hash:	2ff07d9c16ec16791814af13dec4216d1ac623b128ff9e1fbd8660a455e8df78312f5ef293ac217f3f6916ace8567baa
SHA1 hash:	1085faf9f1aa22397cfd47962c1fa9a408170dcb
MD5 hash:	7c5da768a4612916d9babea2dc9a3a7c
humanhash:	mobile-south-beryllium-happy
File name:	pB8TeMO.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'265'536 bytes
First seen:	2025-10-27 10:05:08 UTC
Last seen:	2025-11-22 23:59:05 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	49152:Ovkt62XlaSFNWPjljiFa2RoUYIWGCqsbR0LoGdFTHHB72eh2NT:Ov462XlaSFNWPjljiFXRoUYIW3qv
TLSH	T16BE55B143BF85E37E1ABE277D5B0041267F0FC1AB363EB0B6581677A1C53B509842AA7
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

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.

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

Intelligence

File Origin

# of uploads :

# of downloads :

127

Origin country :

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

pB8TeMO.exe

Verdict:

Malicious activity

Analysis date:

2025-10-27 09:50:56 UTC

Tags:

auto-reg quasar

Link:

https://app.any.run/tasks/2f970543-f011-4460-9cd0-ae337f89f441

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

QuasarRAT

Link:

https://www.capesandbox.com/analysis/34267/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Msilheracles-9900242-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Packed.Downeks-6898097-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68ff407f6c859164aa652eb9

Tags:

infosteal autorun quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Sending a custom TCP request

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 certreq expand explorer fingerprint infostealer lolbin obfuscated obfuscated reconnaissance runonce schtasks stealer stealer tiger

Link:

https://www.filescan.io/uploads/68ff441211ff3db29f6909fe/reports/7e6b490f-adbc-4a3e-8d0d-4c66d3b289d5/overview

Verdict:

Malicious

Labled as:

Trojan.Agent

Link:

https://www.hybrid-analysis.com/sample/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-10-27T06:57:00Z UTC

Last seen:

2025-10-28T12:47:00Z UTC

Hits:

~100

Detections:

Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a HEUR:Trojan-Spy.MSIL.Agent.sb HEUR:Trojan.MSIL.Quasar.gen Trojan-PSW.Win32.Stealer.sb PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic

Link:

https://opentip.kaspersky.com/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/18652bb1-d31d-46e7-bea4-bdcf935c6592

Result

Threat name:

AsyncRAT, Quasar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1802285

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Connects to many ports of the same IP (likely port scanning)

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

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

Verdict:

inconclusive

YARA:

9 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.31 Win 32 Exe x86

Link:

https://app.malva.re/file/7c5da768a4612916d9babea2dc9a3a7c

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c/

Verdict:

Malicious

Threat:

Family.QUASAR

Link:

https://tip.neiki.dev/file/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2025-10-27 09:50:57 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

32 of 37 (86.49%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=pjn6c5z3qobqg4itor4zbpyxtcyhf2cwg5z7hxr4epr6thznujoa._file

Verdict:

malicious

Label(s):

quasarrat

Similar samples:

error

QuasarRAT

Result

Malware family:

xmrig

Score:

10/10

Tags:

family:quasar family:xmrig botnet:bedo defense_evasion execution miner persistence spyware trojan upx

Link:

https://tria.ge/reports/251027-l42geacv5d/

Behaviour

Checks processor information in registry

Modifies data under HKEY_USERS

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Launches sc.exe

Drops file in System32 directory

Suspicious use of SetThreadContext

UPX packed file

Power Settings

Creates new service(s)

Executes dropped EXE

Stops running service(s)

Command and Scripting Interpreter: PowerShell

Drops file in Drivers directory

XMRig Miner payload

Quasar RAT

Quasar family

Quasar payload

Suspicious use of NtCreateUserProcessOtherParentProcess

Xmrig family

xmrig

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/85f965b4-abfb-468f-84a9-55d9331b2f74

Unpacked files

SH256 hash:

7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

MD5 hash:

7c5da768a4612916d9babea2dc9a3a7c

SHA1 hash:

1085faf9f1aa22397cfd47962c1fa9a408170dcb

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/f6e5475c-fc6d-4214-8f87-58440f13be3b/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/7a5be1773b83/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/7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

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:	Diff_QuasarRAT_01 Create hunting rule
Author:	schmidtsz
Description:	Identify QuasarRAT samples

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.

Web download

QuasarRAT

exe 7a5be1773b8383037113747990bf1798b072e8563773f3de3c23e3e99f2da25c

(this sample)

Cape

https://www.capesandbox.com/analysis/34267/

URLhaus

https://urlhaus.abuse.ch/url/3688433/

Delivery method

Distributed via web download

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