MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304. 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: 15

Intelligence 15 IOCs YARA 32 File information Comments

SHA256 hash:	4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304
SHA3-384 hash:	eeeb76a05848844181a22d4493cc3498699fc4b261c5735b5d63b1ae378dc7f674e3ae5c367085767fee1372d5f76b1f
SHA1 hash:	e169b827a356b9c2f8b7fb73da262304ba5e6996
MD5 hash:	5b98f341729789768f830375e4223092
humanhash:	maine-enemy-bacon-nine
File name:	SecuriteInfo.com.MSIL.GenMalicious-R.2737.27279
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'991'040 bytes
First seen:	2025-07-26 19:19:27 UTC
Last seen:	2025-07-26 20:17:13 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep	98304:Bkz8zbgXBsFTiLj4AYqSTt6vlNbCcrbw2mBcV5aUg1ST:B28fgIWU36vjbCO82OcXg16
Threatray	139 similar samples on MalwareBazaar
TLSH	T19E06238832E0B2EFC92BC8B5EB592C64EB9134B743875A17115346EDD96D897CF081F2
TrID	28.5% (.EXE) Win64 Executable (generic) (10522/11/4) 17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 13.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 12.2% (.EXE) Win32 Executable (generic) (4504/4/1) 5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika	pebin
dhash icon	b0337173737171f0 (2 x Loki, 1 x QuasarRAT)
Reporter	SecuriteInfoCom
Tags:	exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Transaccion_SWIFT.xls

Verdict:

Malicious activity

Analysis date:

2025-07-26 17:59:20 UTC

Tags:

macros macros-on-open loader auto-reg confuser crypto-regex

Link:

https://app.any.run/tasks/ac14f631-5f8b-441f-b0ec-02c367368014

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/17065/

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68852a860b4775fb2131a636

Tags:

autorun packed sage remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

confuser confuserex net obfuscated obfuscated obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/68852a8213488cfd44d9ab4e/reports/8f80794a-6ce2-41b3-ad76-6b3f3f8e00b1/overview

Verdict:

Malicious

Labled as:

Lazy.Generic

Link:

https://www.hybrid-analysis.com/sample/4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/d4f358f1-1f21-4533-8f29-d1c6c1b25aab

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable PE (Portable Executable) SOS: 1.00 Win 32 Exe x86

Link:

https://app.malva.re/file/5b98f341729789768f830375e4223092

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304/

Verdict:

Malicious

Threat:

HEUR:Trojan.MSIL.Tasker

Link:

https://tip.neiki.dev/file/4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

Threat name:

ByteCode-MSIL.Trojan.Generic

Status:

Suspicious

First seen:

2025-07-26 18:10:31 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 34 (73.53%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ju7g7yig63ifyusldzzkbe3fdrghmvckrvjgvaov7vciqbv6ymca._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

2c9a9dad74ed9892e2d73dc8a1bbfcdd46d6d9d54a4625a803842d734a5a8ec2

QuasarRAT

4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

QuasarRAT

659655e1978f173874b8e7ee162720482d3314cf04c4ec6a4a58022856dd6b7f

QuasarRAT

9a1a07caef95485ed3b67cee28cd179755ae10003978601bf3173c31ea5b603b

QuasarRAT

a845d78bb580f0e945968e893f9359bcc4aa001489e73a49c8c9876190cda2df

QuasarRAT

error

QuasarRAT

+ 129 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office10 discovery execution persistence spyware trojan

Link:

https://tria.ge/reports/250726-x2bnraswgv/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

ConfuserEx .NET packer

Suspicious use of SetThreadContext

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

floataboat.strangled.net:4785
ploatvoatin.ydns.eu:4787

Verdict:

Malicious

Tags:

red_team_tool

YARA:

SUSP_NET_NAME_ConfuserEx

Link:

https://app.threat.zone/submission/eb77b793-36c5-4920-8868-76454e36f1f8

Unpacked files

SH256 hash:

4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

MD5 hash:

5b98f341729789768f830375e4223092

SHA1 hash:

e169b827a356b9c2f8b7fb73da262304ba5e6996

Link:

https://www.unpac.me/results/c7480ce9-4ffb-4a88-84cc-6e9957e1d13c/

SH256 hash:

cb4a75b30733eb7f4e23135a5ca3021ad4955966304c5be98378222cfb245022

MD5 hash:

c323436b7f56c7a590c80bcf7442eb3e

SHA1 hash:

32a756316499f61710b5ff6f326a895dc33e62f8

Detections:

QuasarRAT

cn_utf8_windows_terminal

malware_windows_xrat_quasarrat

MAL_QuasarRAT_May19_1

MAL_BackNet_Nov18_1

INDICATOR_EXE_Packed_Fody

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Link:

https://www.unpac.me/results/c7480ce9-4ffb-4a88-84cc-6e9957e1d13c/

Parent samples :

4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304
270eb5e8c2481e2611f3805dba760256e8be56efea15d519df95a6d5dbf29fcd

SH256 hash:

54d2ab1e228729617a0e3417e81805c8a0cadb8131d5cd0a7078422689ab2d83

MD5 hash:

28abe627d0d69e4b84c2e70019bbfae5

SHA1 hash:

d18c494234c42508f32118ae645282fc8c2dcc48

Link:

https://www.unpac.me/results/c7480ce9-4ffb-4a88-84cc-6e9957e1d13c/

SH256 hash:

d989fe2546a5437e9420c4d3585441ee215a743087960c34cd04955293d1e0ca

MD5 hash:

1d8702f155c9b225a5d0fce814777c75

SHA1 hash:

2c7efc378489926b07b180a8366c8f0552c605e2

Detections:

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

HKTL_NET_GUID_Quasar

Link:

https://www.unpac.me/results/c7480ce9-4ffb-4a88-84cc-6e9957e1d13c/

Parent samples :

4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304
270eb5e8c2481e2611f3805dba760256e8be56efea15d519df95a6d5dbf29fcd
e151fd79a759d3206f5e0012cec26e972ec74ea43c5e6943d81310c30408fe4e
8aeaeaa9bf27b99f933d7479f77d6b91249cdca0e6967eb22456844c0dbb2098
23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
8638d79bd3e5370b1a1525cb43e9b92a5d99d58a947f4dc06c692f5f9a82bcd8
7be2273bfc26f6f298548a4ff29de90dd24c8dc6b473ea06c2d59c62e09cedff
c9b1c0660b49eeaea761b489d5c00235f7a597b4a5b244643418d6375e436b42
6e2c497b5ba8031212a6ec66f84c2483a35e124ba96db701679b480e8e56d0e0
9eb5301a3c5929f849f95bf070172e4a8a8bd8c4880dbe238aa88ee76adf3063
a769cf974a67c6c99eca486ea834aaf1f601ddf1ddb3860eafb2e433dec469e9
07a467fa5c5d3fd8474fef9e8024755d812ea3ed335e91eee64e55400bcc6086
3f5ce1cb8e9d41e779201fa63573230862cfb3aa0e0023ce82fd0ca4933bda77

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/4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

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:	botnet_plaintext_c2 Create hunting rule
Author:	cip
Description:	Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.

Rule name:	Check_Dlls Create hunting rule

Rule name:	Costura_Protobuf Create hunting rule
Author:	@bartblaze
Description:	Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	INDICATOR_EXE_Packed_ConfuserEx Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with ConfuserEx Mod

Rule name:	INDICATOR_EXE_Packed_ConfuserEx_Custom Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with ConfuserEx Custom; outside of GIT

Rule name:	INDICATOR_EXE_Packed_Fody Create hunting rule
Author:	ditekSHen
Description:	Detects executables manipulated with Fody

Rule name:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	MAL_BackNet_Nov18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

Rule name:	MAL_BackNet_Nov18_1_RID2D6D Create hunting rule
Author:	Florian Roth
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

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:	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:	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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

exe 4d3e6fe106f6d05c524b1e72a093651c4c76544a8d526a81d5fd448806bec304

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3590439/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/17065/

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 (GUARD_CF)	high

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