MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5. 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

Vidar

Vendor detections: 14

Intelligence 14 IOCs YARA 15 File information Comments

SHA256 hash:	c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5
SHA3-384 hash:	3807a85dc30dd4080dcf876b5752437819e4ebd5c304367a4a68fadd657af338e2ff5f3642fa459cca6e531705750248
SHA1 hash:	fd4de345fdd65dcef558565435da8856ef29b9f7
MD5 hash:	cda68de961fce4a51aab01b58dfa8155
humanhash:	happy-lemon-cat-seventeen
File name:	c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5.exe
Download:	download sample
Signature	Vidar Create hunting rule
File size:	671'384 bytes
First seen:	2026-08-11 06:39:34 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	905d6e2fd95bb9d68bb959ec7e8cfb12 (5 x RemusStealer, 3 x Vidar, 2 x njrat)
ssdeep	12288:7VrlebefidPpDWwdwmfgehewbXabsWMOm3r5sUEcfa1Bs1zY/z1AYV:Gbe6dPgm4eIG+sWzs2bf1+s+YV
TLSH	T120E40111FBAB11E8E2638438C9594662FB773E6543505A2F0360BB76BF336617D28B31
TrID	29.5% (.EXE) Win64 Executable (generic) (6522/11/2) 22.7% (.EXE) Win16 NE executable (generic) (5038/12/1) 20.3% (.EXE) Win32 Executable (generic) (4504/4/1) 9.1% (.EXE) OS/2 Executable (generic) (2029/13) 9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
dhash icon	f1f4e8e8b288c8c0 (3 x AgentTesla, 3 x Vidar, 1 x RemusStealer)
Reporter	whack_sh
Tags:	exe vidar whack.sh

Intelligence

File Origin

# of uploads :

# of downloads :

153

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

xmrig

ID:

File name:

bomb.exe

Verdict:

Malicious activity

Analysis date:

2026-08-11 06:57:14 UTC

Tags:

ip-check github possible-phishing auto generic nemucod loader xmrig miner botnet phorpiex stealer stealc discord pikabot amadey sliver framework screenconnect remote evasion formbook solaris connectwise rmm-tool qrcode loda rat remus uac-bypass credentialflusher xworm phantom sheet grandoreiro banker salatstealer tool stego payload pastebin winring0-sys vuln-driver susp-powershell powershell ftp quasar dcrat darkcrystal sheetrat rdp clipper diamotrix python upx vidar backdoor webshell inj3ctor3 jomangy fakesite phishing maskgramstealer etherhiding zigcryptostealer autoit attachments attc-unc agenttesla

Link:

https://app.any.run/tasks/29a1fdd1-6ff8-4387-9135-2ea4580df1e5

Note:

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

Detection:

Vidar

Link:

https://www.capesandbox.com/analysis/80218/

Detection(s):

SecuriteInfo.com.Generic.Dacic.21301.FC652C3C.27124289.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Сreating synchronization primitives

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Setting a single autorun event

Enabling autorun by creating a file

Enabling autorun

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug dllhost fingerprint installer-heuristic invalid-signature lolbin obfuscated packed signed

Link:

https://www.filescan.io/uploads/6a7ac3e40d5ac015757be306/reports/fe80db9a-4d95-4b34-b76f-b9f28c26f208/overview

Verdict:

Malicious

Labled as:

Dacic.21301.Generic

Link:

https://www.hybrid-analysis.com/sample/c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-08-11T02:32:00Z UTC

Last seen:

2026-08-12T03:41:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/09e36901-d536-40f6-bc23-b3ba2e51dd04

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5/

Threat name:

Win64.Trojan.ValleyRAT

Status:

Malicious

First seen:

2026-08-11 11:01:16 UTC

AV detection:

17 of 23 (73.91%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=yv35h3dgqmubtt4gud7xtekdzl3qd3pb5xytf5722xb73x7ygdcq._file

Verdict:

malicious

Label(s):

Vidar

Link:

https://reports.threatray.com/ac3d689d-6e25-4348-b941-8bbaeadd73c2

Result

Malware family:

n/a

Score:

7/10

Tags:

execution persistence privilege_escalation

Link:

https://tria.ge/reports/260811-hfhgvaxhra/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious use of NtSetInformationThreadHideFromDebugger

Adds Run key to start application

Creates a file in the Startup directory

Registers new Windows logon scripts automatically executed at logon.

Unpacked files

SH256 hash:

c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5

MD5 hash:

cda68de961fce4a51aab01b58dfa8155

SHA1 hash:

fd4de345fdd65dcef558565435da8856ef29b9f7

Link:

https://www.unpac.me/results/7c851bf0-2bf4-4e45-9deb-1485bfcd9976/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c577d3ec6683/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/c577d3ec66832819cf86a0ff799143caf701ede1edf132f7fad5c3fddff830c5

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

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

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	SUSP_XORed_Mozilla_Oct19 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:	https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
Reference:	Internal Research

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

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

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

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.