MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9. 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 71 File information Comments

SHA256 hash:	debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9
SHA3-384 hash:	76cbf1508e7535fdc5ef56e502771aa3adb72d7dc061426b7a6572f9389f64c7d1d789bc78c199b08d61ebdd47f5457d
SHA1 hash:	2df834808843a5ba642ba7be0f6107fe670ecd49
MD5 hash:	3daddae814b3e98279849a8ed45eb836
humanhash:	mississippi-bacon-monkey-muppet
File name:	file
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	16'452'096 bytes
First seen:	2025-12-28 00:39:08 UTC
Last seen:	2025-12-28 02:19:10 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	393216:Bh5PMaR843/yIHbuPb0vtfKJrdjOCbyDzFCPBO4+yf:9Eau4TuPgvtiBkzFCPo4+m
Threatray	2 similar samples on MalwareBazaar
TLSH	T164F622D9362C81FFE256887FCA6D44B68C13A47E242D24E7287E6CFA37165012B5CF64
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
Reporter	Bitsight
Tags:	dropped-by-amadey exe fbf543 QuasarRAT

Bitsight

url: http://130.12.180.43/files/1781548144/947vw6c.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

EvilCoder SilentCryptoMiner XWorm

Details

EvilCoder

a mutex and AES-ECB decrypted component(s)

PEPacker

a UPX version number and an unpacked binary

SilentCryptoMiner

AES-CBC decryption parameters, decrypted component(s), and possibly urls and a CryptoCurrency address

XWorm

a version, a filepath, a mutex, a c2 socket address or a dead-drop resolver URL, and possibly cryptocurrency wallets and a Telegram URL

Link:

https://research.acce.ciphertechsolutions.com/results/e510aa41-d42d-4089-a75f-646487c94c73/

Malware family:

xmrig

ID:

File name:

_debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9.exe

Verdict:

Malicious activity

Analysis date:

2025-12-28 00:41:30 UTC

Tags:

evasion auto-reg xworm auto-startup delphi anti-evasion miner winring0-sys vuln-driver upx xor-url generic xmrig

Link:

https://app.any.run/tasks/413e9e4c-25cb-4352-a50c-8798a50fab7a

Note:

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

Detection:

R77

Link:

https://www.capesandbox.com/analysis/46253/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69507c3a6de7591fd8fbde96

Tags:

vmdetect emotet quasar

Verdict:

Malicious

Labled as:

MSIL.Cassiopeia.Generic

Link:

https://www.hybrid-analysis.com/sample/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-12-27T21:47:00Z UTC

Last seen:

2025-12-28T12:49:00Z UTC

Hits:

~100

Detections:

Trojan.Win32.Agent.sb Trojan-Spy.Win64.Xegumumune.kgz Trojan-Dropper.Win32.Agent.sb Trojan.Win32.Agent.rnd HEUR:Trojan.MSIL.APosT.gen HEUR:Backdoor.MSIL.XClient.b Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.DOTHETUK.sb HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Trojan.Win32.Generic HEUR:Trojan.Win32.Agent.pef Backdoor.MSIL.XWorm.b HEUR:Trojan.MSIL.Tasker.gen HEUR:Trojan.MSIL.Agent.gen VHO:Trojan.Win32.Agent.gen Trojan.Win32.Inject.sb Backdoor.MSIL.XWorm.a PDM:Trojan.Win32.Generic Trojan-Dropper.Win32.Delf.sb HEUR:Trojan.Win32.Miner.pef HEUR:Backdoor.MSIL.XWorm.gen Backdoor.Agent.TCP.C&C Trojan-Dropper.Win32.Injector.sb Trojan.Win32.Vimditator.sb HEUR:Trojan.Multi.Agent.gen Backdoor.Win32.Androm Backdoor.MSIL.PulsarRAT.sb Backdoor.MSIL.Crysan.d Trojan-Spy.Win32.Clipper.sba PDM:Trojan.Win32.Tasker.cust Trojan-Spy.Win32.Xegumumune.sba RiskTool.Miner.UDP.C&C RiskTool.BitCoinMiner.UDP.C&C

Link:

https://opentip.kaspersky.com/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9/results?tab=lookup

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/feb898d7-aa7f-4d7c-86f9-209926f4253b

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.18 Win 32 Exe x86

Link:

https://app.malva.re/file/3daddae814b3e98279849a8ed45eb836

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9/

Verdict:

Malicious

Threat:

Family.XWORM

Link:

https://tip.neiki.dev/file/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9

Threat name:

ByteCode-MSIL.Trojan.Cassiopeia

Status:

Malicious

First seen:

2025-12-28 00:40:24 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

28 of 36 (77.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=326zogqp6sabqbgufrcekuoaprmotmjozrb2beecffwbgy2sxheq._file

Verdict:

malicious

Label(s):

xworm

unc_loader_055

quasarrat

QuasarRAT

error

QuasarRAT

Result

Malware family:

xworm

Score:

10/10

Tags:

family:quasar family:xmrig family:xworm defense_evasion discovery execution miner persistence rat spyware trojan upx

Link:

https://tria.ge/reports/251228-a62peaey9f/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Checks for VirtualBox DLLs, possible anti-VM trick

Launches sc.exe

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

UPX packed file

Adds Run key to start application

Looks up external IP address via web service

Power Settings

Checks BIOS information in registry

Checks computer location settings

Creates new service(s)

Executes dropped EXE

Loads dropped DLL

Stops running service(s)

Command and Scripting Interpreter: PowerShell

XMRig Miner payload

Detect Xworm Payload

Quasar RAT

Quasar family

Quasar payload

Suspicious use of NtCreateProcessExOtherParentProcess

Suspicious use of NtCreateUserProcessOtherParentProcess

Xmrig family

Xworm

Xworm family

xmrig

Malware Config

C2 Extraction:

uchiwa5.duckdns.org:8887
176.160.157.96:8887
monbondns.duckdns.org:8887

Verdict:

Malicious

Tags:

External_IP_Lookup

YARA:

n/a

Link:

https://app.threat.zone/submission/b1247a83-5f9f-49de-9efa-ab22166deb51

Unpacked files

SH256 hash:

debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9

MD5 hash:

3daddae814b3e98279849a8ed45eb836

SHA1 hash:

2df834808843a5ba642ba7be0f6107fe670ecd49

Link:

https://www.unpac.me/results/1143b23d-1453-40f5-94f4-5b5ac87650b1/

SH256 hash:

637333d4c04387aa3554c86eba4615a544577b6aa262e07363b2f4275f66795e

MD5 hash:

983b4cc7434a3d1ad10685baeac9f947

SHA1 hash:

bae68ee36db23dae44d22f02e188450ecd694856

Detections:

win_xworm_w0

XWorm

win_xworm_bytestring

win_mal_XWorm

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

MALWARE_Win_AsyncRAT

MALWARE_Win_XWorm

Link:

https://www.unpac.me/results/1143b23d-1453-40f5-94f4-5b5ac87650b1/

SH256 hash:

d6966099c5998c8fdabf3f7f435856b469a1cefd4c8f8362c2dceebe7dd31c94

MD5 hash:

8001a5a10f6f71e5b93703afad23f8aa

SHA1 hash:

bb3350de5a04c8c48efdb9e7ebeb30826c37ce9a

Link:

https://www.unpac.me/results/1143b23d-1453-40f5-94f4-5b5ac87650b1/

SH256 hash:

f78ce7114bd649a39524e8aaf83945b4f56264992dfd0341b5c59c6c794ca605

MD5 hash:

aa99efa02e64c5bc580b59412d81675c

SHA1 hash:

47010d229cddd9bef3afb05b3cbd2e8d2eef86e2

Detections:

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

HKTL_NET_GUID_Quasar

Link:

https://www.unpac.me/results/1143b23d-1453-40f5-94f4-5b5ac87650b1/

Malware family:

XWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/debd971a0ff4/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/debd971a0ff4801804d42c444551c07c58e9b12ecc43a09082296c136352b9c9

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

Rule name:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	Bolonyokte Create hunting rule
Author:	Jean-Philippe Teissier / @Jipe_
Description:	UnknownDotNet RAT - Bolonyokte

Rule name:	Borland Create hunting rule
Author:	malware-lu

Rule name:	CAS_Malware_Hunting Create hunting rule
Author:	Michael Reinprecht
Description:	DEMO CAS YARA Rules for sample2.exe

Rule name:	Check_Dlls Create hunting rule

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

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

Rule name:	DebuggerCheck__MemoryWorkingSet Create hunting rule
Author:	Fernando Mercês
Description:	Anti-debug process memory working set size check
Reference:	http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/

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

Rule name:	DebuggerException__SetConsoleCtrl 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:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

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_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:	ldpreload Create hunting rule
Author:	xorseed
Reference:	https://stuff.rop.io/

Rule name:	MacOS_Cryptominer_Xmrig_241780a1 Create hunting rule
Author:	Elastic Security

Rule name:	MALWARE_Win_CoinMiner02 Create hunting rule
Author:	ditekSHen
Description:	Detects coinmining malware

Rule name:	MALWARE_Win_R77 Create hunting rule
Author:	ditekSHen
Description:	Detects r77 rootkit

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
Description:	Detects QuasarRAT malware

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:	MAL_XMR_Miner_May19_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Monero Crypto Coin Miner
Reference:	https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/

Rule name:	MAL_XMR_Miner_May19_1_RID2E1B Create hunting rule
Author:	Florian Roth
Description:	Detects Monero Crypto Coin Miner
Reference:	https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	meth_peb_parsing Create hunting rule
Author:	Willi Ballenthin

Rule name:	Mimikatz_Generic Create hunting rule
Author:	Still
Description:	attempts to match all variants of Mimikatz

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:	Multi_Cryptominer_Xmrig_f9516741 Create hunting rule
Author:	Elastic Security

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	pe_imphash Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	rig_win64_xmrig_6_13_1_xmrig Create hunting rule
Author:	yarGen Rule Generator
Description:	rig_win64 - file xmrig.exe
Reference:	https://github.com/Neo23x0/yarGen

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

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

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:	Suspicious_PssCaptureSnapshot_Usage Create hunting rule
Author:	Dana Behling - Just me not for personal curiosity, no company.
Description:	Detects binaries abusing PssCaptureSnapshot in combination with typical combination that indicates malicious activity.

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

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

Rule name:	WHIRLPOOL_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for WhirlPool constants

Rule name:	Windows_Cryptominer_Generic_f53cfb9b Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Generic_Threat_d331d190 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Rootkit_R77_d0367e28 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit

Rule name:	XMRIG_Monero_Miner Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Monero mining software
Reference:	https://github.com/xmrig/xmrig/releases