MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f. 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 36 File information Comments

SHA256 hash:	a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f
SHA3-384 hash:	e73b12094c368f59e3a75632fb12537b942959eb1b898bf443c1c5e78c9d30a154262b204bfa03e44615931a5588dadf
SHA1 hash:	13726609ae5418f1f3ef9dc904541326da005ce3
MD5 hash:	e4c8cb4b8a732e71ca04ba532de3df83
humanhash:	nevada-oven-eight-ceiling
File name:	a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	908'288 bytes
First seen:	2026-10-14 16:14:31 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'291 x AgentTesla, 20'706 x Formbook, 12'401 x SnakeKeylogger)
ssdeep	24576:crqmszxJzck+uGW/yFoBkkAV7gvIv7gJLX:crqmiTYjqqanGMvIvsJ
TLSH	T17715D090B7F4860AE1FF0BB9E47644444B77F616AA77C74F098864AD1EA3380CE517A3
TrID	63.0% (.RLL) Microsoft Resource Library (x86) (177572/6/26) 25.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 2.3% (.EXE) Win64 Executable (generic) (6522/11/2) 1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
dhash icon	0194969696969669 (6 x QuasarRAT, 1 x LummaStealer)
Reporter	ShadowOpCode
Tags:	exe QuasarRAT RGBLoader

Intelligence

File Origin

# of uploads :

# of downloads :

179

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/9f99d2f3-d77f-4daf-a2ce-c6febc8acb37/

Malware family:

agenttesla

ID:

File name:

https://temp.sh/HVmiT/RGBLoader.zip

Verdict:

Malicious activity

Analysis date:

2026-10-14 15:16:47 UTC

Tags:

rat pulsar netreactor ip-check evasion stealer agenttesla ftp exfiltration uac xworm screenconnect rmm-tool smtp ultravnc telegram snake keylogger

Link:

https://app.any.run/tasks/4e9aec16-036a-4d91-93e0-a1a6602cbb3d

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/91988/

Detection(s):

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Malware.Bulz-9933026-0

Win.Malware.Generic-6623004-0

Win.Malware.Generic-9883083-0

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad17a3b6f551121ba1667ca

Tags:

vmdetect autorun quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating synchronization primitives

Creating a file in the system32 subdirectories

Launching a process

Enabling the 'hidden' option for recently created files

Creating a process from a recently created file

Creating a file

BSOD occurred

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 entropy hacktool obfuscated packed privilege pulsar reconnaissance stack_pickle

Link:

https://www.filescan.io/uploads/6acfaab05fe91cc0f60378ba/reports/ac82252e-300e-4848-8bb4-dbf5cd9fbe92/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-08T06:56:00Z UTC

Last seen:

2026-10-16T00:25:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4d2a12f9-e80a-43e2-a2ac-636b9b38ee7d

Score:

96%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f

Verdict:

QuasarRat

YARA:

17 match(es)

Tags:

.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.14 SOS: 0.15 SOS: 0.17 SOS: 0.18 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.61 Win 32 Exe x86

Malware Config

C2 Extraction:

PORT: ChainingModeGCM
CNC: ChainingModeGCM

Link:

https://app.malva.re/file/e4c8cb4b8a732e71ca04ba532de3df83

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f/

Threat name:

ByteCode-MSIL.Trojan.Pulsar

Status:

Malicious

First seen:

2026-10-09 15:08:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 23 (86.96%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=u6v43ge733jvdz5kqdvz4d7o6dnub47hv3tzszfnf7q7k7k4vq7q._file

Verdict:

malicious

Label(s):

QuasarRAT

Link:

https://reports.threatray.com/61d318a6-0cdd-4078-8fe2-1dc909d36519

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar execution module persistence rat spyware trojan

Link:

https://tria.ge/reports/261014-tql4kaez2q/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Drops file in System32 directory

Family: Quasar RAT

PulsaRAT library module

Quasar payload

Unpacked files

SH256 hash:

a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f

MD5 hash:

e4c8cb4b8a732e71ca04ba532de3df83

SHA1 hash:

13726609ae5418f1f3ef9dc904541326da005ce3

Detections:

QuasarRAT

cn_utf8_windows_terminal

INDICATOR_EXE_Packed_Fody

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

MAL_BackNet_Nov18_1

MAL_QuasarRAT_May19_1

malware_windows_xrat_quasarrat

Link:

https://www.unpac.me/results/1e75faeb-24c3-4e86-a467-f605671d2d65/

Malware family:

PulsarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a7abcd989fde/report/overview.html

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

Threat name:

Malicious File

Score:

0.77

Link:

https://yomi.yoroi.company/submissions/a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f

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:	Check_Dlls Create hunting rule

Rule name:	Check_VBox_Guest_Additions Create hunting rule

Rule name:	Check_VmTools Create hunting rule

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__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:	DotNet_RGB_Embedded_AssemblyLoader_Hunt Create hunting rule
Author:	ShadowOpCode
Description:	Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading

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

Rule name:	hunting_generic_win_rat Create hunting rule
Author:	Ajin Deepak, AD2001
Description:	Hunting RATS based on common patterns

Rule name:	HUNT_NET_Loader_ImagePixel_To_AssemblyLoad Create hunting rule
Author:	Anish Bogati
Description:	Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.

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
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:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Pulsar_RAT Create hunting rule
Author:	@bartblaze
Description:	Identifies Pulsar RAT, based on Quasar RAT.
Reference:	https://malpedia.caad.fkie.fraunhofer.de/details/win.pulsar_rat

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_Script_PowerShell_Hidden_Launcher Create hunting rule
Author:	Marjoriefort
Description:	Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:	Veille fraicheur 2026-09-14 / cluster misses web

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:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	WIN_Malware_SalatStealer_ForgeAuto_542e717b Create hunting rule
Author:	Marjoriefort
Description:	Detects SalatStealer (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

Rule name:	WIN_Malware_Unknown_ForgeAuto_ce8c5b46 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

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/91988/

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