MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2. 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: 19

Intelligence 19 IOCs YARA 28 File information Comments 2

SHA256 hash:	79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2
SHA3-384 hash:	e8a324df89fa38baa3655c545c0f7cdc8df203255020b1ba24f94709a2db20983fd9523c1b014c525cfdb199c44a6d21
SHA1 hash:	b9b416cb20486e599c036c35d8dc8a823e45b196
MD5 hash:	71367db4e2f7c88003efb67d09808b91
humanhash:	kitten-paris-spaghetti-july
File name:	Client-built.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'266'048 bytes
First seen:	2025-07-17 14:04:44 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'076 x AgentTesla, 20'036 x Formbook, 12'353 x SnakeKeylogger)
ssdeep	49152:3viI22SsaNYfdPBldt698dBcjH2txNESEKk/ijLoGdwTHHB72eh2NT:3vv22SsaNYfdPBldt6+dBcjHIx9v
Threatray	1'212 similar samples on MalwareBazaar
TLSH	T136E55B143BF85F23E1BBE27395B0041667F0EC2AB3A3EB1B1191677E1C53B5059426AB
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	skocherhan
Tags:	exe github-Namit903 QuasarRAT

skocherhan

https://github.com/Namit903/work/raw/refs/heads/main/Client-built.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

Client-built.exe

Verdict:

Malicious activity

Analysis date:

2025-07-17 14:06:13 UTC

Tags:

quasar

Link:

https://app.any.run/tasks/f235c66d-0d81-4100-a9e2-2fb6c712c999

Note:

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

Detection:

QuasarStealer

Link:

https://www.capesandbox.com/analysis/15052/

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:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=687903322f623871a5ef31a4

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

Sending a custom TCP request

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

base64 infostealer obfuscated reconnaissance stealer stealer tiger

Link:

https://www.filescan.io/uploads/6879032e8a7d628a81b47aa5/reports/9164d44d-f667-488e-b2b2-9fb5b8806aad/overview

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/cce45136-06f9-4f04-9977-a5eba9d5f222

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

Verdict:

inconclusive

YARA:

13 match(es)

Tags:

.Net Executable PE (Portable Executable) SOS: 0.08 Win 32 Exe x86

Link:

https://app.malva.re/file/71367db4e2f7c88003efb67d09808b91

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2/

Verdict:

Malicious

Threat:

ByteCode-MSIL.Backdoor.Quasar

Link:

https://tip.neiki.dev/file/79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2025-07-16 15:45:22 UTC

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=pgu4brsendmvbv23hifm7zh2yhw3l4rjghp7yqle5vl6vazhj6za._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

42a913fedb31db5ba0cf28abd0fe6afc3b9807aac7045a1c02579c2b3282a3b1

QuasarRAT

deebb3404de726f330e122ea377c38a79970788de0205b3ccfca1b8b99cf0291

QuasarRAT

error

QuasarRAT

f6de94ee28d98ffb171eca1c8716b4577a3546bac44e41596fe5e1c84d8970bd

QuasarRAT

f72153dbb753423e630840ed3674c6a0ce27b4ff5d1790a5bbb6d5707f9ed41e

QuasarRAT

+ 1'202 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 execution persistence spyware trojan

Link:

https://tria.ge/reports/250717-rd4fzazwht/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Drops file in System32 directory

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

147.185.221.30:6171

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/0060a106-c749-48f5-bd5c-115eebd36db4

Unpacked files

SH256 hash:

79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

MD5 hash:

71367db4e2f7c88003efb67d09808b91

SHA1 hash:

b9b416cb20486e599c036c35d8dc8a823e45b196

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/38a730b7-5aa1-4ee1-aa22-33254bcb74e2/

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/79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

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:	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.

Web download

QuasarRAT

exe 79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2

(this sample)

Cape

https://www.capesandbox.com/analysis/15052/

URLhaus

https://urlhaus.abuse.ch/url/3584992/

Delivery method

Distributed via web download

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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commented on 2025-08-08 19:02:32 UTC

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

{
"sha256": "79a9c0c64468d950d75b3a0acfe4fac1edb5f22931dffc4164ed57ea83274fb2",
"yara_possible_family": "quasarrat",
"key": "07a33c4cbc6b1814422728cfc9f58022ca41a54545e7b6801984319c413185ee",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.4.1",
"obfuscated_key_2": "147.185.221.30:6171;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "SYSTEM",
"obfuscated_key_5": "SubDir",
"obfuscated_key_6": "Client.exe",
"obfuscated_key_7": true,
"obfuscated_key_8": true,
"obfuscated_key_9": "0d23a75f-288f-4426-b5b1-674b4db9cad4",
"obfuscated_key_10": "RtkAudUService64",
"obfuscated_key_11": true,
"obfuscated_key_12": true,
"obfuscated_key_13": "CB8E3469661675B64B173B194D1988D6BE0B9C22",
"obfuscated_key_14": "Office04",
"obfuscated_key_15": "Logs",
"obfuscated_key_16": "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",
"obfuscated_key_17": "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",
"obfuscated_key_18": true,
"obfuscated_key_19": true,
"obfuscated_key_20": "",
"obfuscated_key_21": "",
"obfuscated_key_22": false
}
}

commented on 2025-08-08 18:57:06 UTC