MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66. 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 YARA 30 File information Comments 1

SHA256 hash:	011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66
SHA3-384 hash:	f882fbbda13bb7a5c4e6ba3f69ba6aa3539197c4837bfaf7be31f4465da51f5a34c393986afb5f27353aa32c66710fb6
SHA1 hash:	e09f511431f0687a081a50120e9c0a84c42f7f6d
MD5 hash:	78f2b131ec926e94c326c2ce0e70b8c0
humanhash:	cola-solar-pip-william
File name:	Client.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'266'048 bytes
First seen:	2026-03-22 11:48:58 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'857 x AgentTesla, 19'784 x Formbook, 12'305 x SnakeKeylogger)
ssdeep	49152:zvTlL26AaNeWgPhlmVqvMQ7XSKRsRJ6PbR3LoGdDTHHB72eh2NT:zvJL26AaNeWgPhlmVqkQ7XSKRsRJ6h
Threatray	2'162 similar samples on MalwareBazaar
TLSH	T119E56B143BF85E27E1BBE277E5B0041267F0FC1AB363EB0B6581677A1C53B5098426A7
TrID	60.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 13.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 5.4% (.EXE) Win64 Executable (generic) (6522/11/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	Skynet11
Tags:	exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

157

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/5e919658-5c64-425e-bbb9-b67ac35c6845/

Malware family:

quasar

ID:

File name:

Client-built.exe

Verdict:

Malicious activity

Analysis date:

2026-03-21 13:00:40 UTC

Tags:

quasar

Link:

https://app.any.run/tasks/6a2e105f-f9ee-44ac-841b-6b2c72fb7068

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/58664/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Msilheracles-9900242-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Packed.Downeks-6898097-0

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69be967baacb4c376b126ee1

Tags:

infosteal quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

DNS request

Creating a file in the %temp% directory

Running batch commands

Creating a process with a hidden window

Creating a file

Launching a process

Unauthorized injection to a recently created process

Restart of the analyzed sample

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 certreq expand explorer fingerprint infostealer keylogger lolbin obfuscated obfuscated quasar quasarrat reconnaissance runonce schtasks soft-404 stealer tiger unsafe windows

Link:

https://www.filescan.io/uploads/69bfd73a2000fc76c3f63712/reports/22f98ffd-2a89-4dd2-8b90-f13c08ca6738/overview

Verdict:

Malicious

Labled as:

Trojan.Agent

Link:

https://www.hybrid-analysis.com/sample/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-03-21T10:11:00Z UTC

Last seen:

2026-03-24T05:04:00Z UTC

Hits:

~10

Detections:

Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a HEUR:Trojan-Spy.MSIL.Agent.sb HEUR:Trojan.MSIL.Quasar.gen

Link:

https://opentip.kaspersky.com/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/8d5b3e97-b815-4088-83f5-0cb4cec20372

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66

Gathering data

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-03-21 13:00:43 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=aemhf4klcasm22dtvxwtmxyp6ptt4qwc5iox67sv7zo2uq7spzta._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

49c0cc5f278c0e3c372a9ef3029697cd36da5cf25ff2f817bbf4256dd3f1f4df

QuasarRAT

b77f42af2af063c0df3b3cb75e510987ab391ce96783d23ca121f03f1cd9dac6

QuasarRAT

ea8d7f024d9d6a84127fe2873d556b7f97525b9815270633b8087b2c9e24389b

QuasarRAT

f99ecbd9f26048dbb962f1711199e5f5d00ac8bbd87f539dd5a99631a15fadba

QuasarRAT

+ 2'152 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 discovery spyware trojan

Link:

https://tria.ge/reports/260322-ny4qpaes5j/

Behaviour

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

Checks computer location settings

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

rpi.uk.com:443
fertile-station.sa.com:443

Unpacked files

SH256 hash:

011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66

MD5 hash:

78f2b131ec926e94c326c2ce0e70b8c0

SHA1 hash:

e09f511431f0687a081a50120e9c0a84c42f7f6d

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/79219a73-829a-443b-a3d1-95c1891ba41d/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/011872f14b10/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/011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66

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.

Cape

https://www.capesandbox.com/analysis/58664/

Comments

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commented on 2026-03-22 11:51:17 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "011872f14b1024cd6873aded365f0ff3e73e42c2ea1d7f7e55fe5daa43f27e66",
"yara_possible_family": "quasarrat",
"key": "acd925b276514098ebbee50c7f0b8769f71d564ba2bb90a8fb4f024a08f06e27",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.4.1",
"obfuscated_key_2": "rpi.uk.com:443;fertile-station.sa.com:443;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "APPLICATIONDATA",
"obfuscated_key_5": "SubDir",
"obfuscated_key_6": "Client.exe",
"obfuscated_key_7": false,
"obfuscated_key_8": false,
"obfuscated_key_9": "bd8d9841-9321-4d03-b7a9-ba6f9c368302",
"obfuscated_key_10": "Quasar Client Startup",
"obfuscated_key_11": false,
"obfuscated_key_12": false,
"obfuscated_key_13": "6036311E00155C31A9D54EA6B1527D8921B0E84A",
"obfuscated_key_14": "Office04",
"obfuscated_key_15": "Logs",
"obfuscated_key_16": "R3MWRvLgcvnBfN/+jT3HXDDyQKfr3KfeB1s6VsvLgzKQ30HqPJJYIYzyNOluoJCgv1uu6yq0lqm/rvo5eEBHnUKXwuI+mOZh9JfStE8z2k2BhPY5JSnnXVE/3axOZSPGbIct9CKcU4H+zQ22aLxDOrfUbwpFb6lZiZU8A1PHkuVRhsFqLnBkpDfV8dzfkVZXW71+KlFm+CZpWt20Z1+Y41/3kd/GVOSk37FJVHxYJ+HvzGwxgV1mLRKrLMgSuDg5ZMQCS2qnAvDSPMbM0Mgn30TDJpxW8LlnP4LQQKYST8etUcLOiyQZ79Am+oIWOjPGzxR2+5FbcPQPvKvrdYZYpYke/QCp5zSHsxeQTQHXodQXb2prnKbGQUtIJ8OjglEcVnsQMf/ffqZLT+IlXp3gcdrkhiQ5+UvY3BaASFMyWfvHT0A98HXsAJUm0iDtozfc/EWFbQ6eYs6A2VeAa9Tl+PoggnPiJzpzGjqX4zIj//+XcVF0/Azy4tWbsi7GfAl8gM0adz3l4WRV8eN7nmiHNlx/Xl98P4F99d5uZ/F8MUWs2AdoHKsINo9ZWszpNkWvrTnKn19thRWzk/4vojuLbk3DNPx+4r6APxFy9bDahQc5pTeecWiuuBVhUUBRmGyJNHCgIMggYwBrE+v/SlBVHYij7CiobfsY1QjdFNNZDao=",
"obfuscated_key_17": "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",
"obfuscated_key_18": false,
"obfuscated_key_19": false,
"obfuscated_key_20": "",
"obfuscated_key_21": "",
"obfuscated_key_22": false
}
}