MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28. 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 29 File information Comments

SHA256 hash:	cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28
SHA3-384 hash:	3db6ce76bb32b37e773862031c509a693c800b6264bf313b5528af5d55288f7b95760a5650f70deea21a3bcc8a63d7aa
SHA1 hash:	82269ecd26d3809a7af1f54af01df1ec628870f9
MD5 hash:	1a1eca4afce8019df602f317f2ade1ef
humanhash:	jersey-pip-maryland-kitten
File name:	UStarteX.exe
Download:	download sample
Signature	Vidar Create hunting rule
File size:	7'563'264 bytes
First seen:	2025-12-22 17:24:45 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	d42595b695fc008ef2c56aabd8efd68e (155 x Vidar, 92 x Rhadamanthys, 74 x Stealc)
ssdeep	49152:8QbhJ0U5JS5ozdYIaJy6WdyaO6Ytv3dPm:8ODvmISy6Wg5Pm
TLSH	T14E764B93FE5046A5C59FD33DE8A20285B27478441B7131D77B6436660E3BBC81A3BB2E
TrID	44.4% (.EXE) Win64 Executable (generic) (10522/11/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	abuse_ch
Tags:	de-pumped exe vidar

Intelligence

File Origin

# of uploads :

# of downloads :

120

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

vidar

ID:

File name:

UStarteX.exe

Verdict:

Malicious activity

Analysis date:

2025-12-22 17:29:57 UTC

Tags:

stealer stealc vidar xor-url generic api-base64 golang

Link:

https://app.any.run/tasks/60428f7c-b027-4728-8d8a-fcec80bad265

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/45762/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69497f04a6c88bb4cc23940b

Tags:

ransomware emotet small remo

Verdict:

Suspicious

Labled as:

WinGo/Kryptik.NH trojan

Link:

https://www.hybrid-analysis.com/sample/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

Verdict:

Malicious

File Type:

exe x64

First seen:

2025-12-22T15:27:00Z UTC

Last seen:

2025-12-22T18:09:00Z UTC

Hits:

~10

Detections:

Trojan.Win64.Agent.sb HEUR:Trojan.Win64.Generic

Link:

https://opentip.kaspersky.com/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28/results?tab=lookup

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/3652787e-1028-4299-a547-88ac4ea07521

Result

Threat name:

Vidar

Detection:

malicious

Classification:

troj.evad.mine

Score:

80 / 100

Link:

https://www.joesandbox.com/analysis/1837754

Signature

C2 URLs / IPs found in malware configuration

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to registers a callback to get notified when the system is suspended or resumed (often done by Miners)

Found malware configuration

Potentially malicious time measurement code found

Tries to detect virtualization through RDTSC time measurements

Unusual module load detection (module proxying)

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

47%

Verdict:

Susipicious

File Type:

Link:

https://malprob.io/report/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/1a1eca4afce8019df602f317f2ade1ef

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28/

Verdict:

Malicious

Threat:

Family.STEALC

Link:

https://tip.neiki.dev/file/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

Threat name:

Win64.Spyware.Vidar

Status:

Suspicious

First seen:

2025-12-22 18:13:18 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

11 of 24 (45.83%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zutnxooiaovidpbvhjji5kbtlpjqod64tchazgfqocyue3kzlqua._file

Result

Malware family:

vidar

Score:

10/10

Tags:

family:vidar discovery spyware stealer

Link:

https://tria.ge/reports/251222-vzjv8sxmbx/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Browser Information Discovery

Enumerates physical storage devices

System Time Discovery

Drops file in Windows directory

Checks installed software on the system

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Detects Vidar Stealer

Vidar

Vidar family

Verdict:

Suspicious

Tags:

Stealc

YARA:

n/a

Link:

https://app.threat.zone/submission/22ce2b00-3511-4015-a0de-f9d69338f5c1

Unpacked files

SH256 hash:

cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

MD5 hash:

1a1eca4afce8019df602f317f2ade1ef

SHA1 hash:

82269ecd26d3809a7af1f54af01df1ec628870f9

Link:

https://www.unpac.me/results/49de96be-4920-4240-8ca8-4dc834f7cdbc/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cd26dbb9c803/report/overview.html

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

Threat name:

Suspicious File

Score:

0.30

Link:

https://yomi.yoroi.company/submissions/cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

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

Rule name:	DebuggerCheck__RemoteAPI 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:	dependsonpythonailib Create hunting rule
Author:	Tim Brown
Description:	Hunts for dependencies on Python AI libraries

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

Rule name:	Golangmalware Create hunting rule
Author:	Dhanunjaya
Description:	Malware in Golang

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

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

Rule name:	golang_duffcopy_amd64 Create hunting rule

Rule name:	Golang_Find_CSC846 Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	Golang_Find_CSC846_Simple Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	HiveRansomware Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule To Detect Hive V4 Ransomware

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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

Rule name:	Suspicious_Golang_Binary Create hunting rule
Author:	Tim Machac
Description:	Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)

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

Rule name:	win_bazarbackdoor_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.bazarbackdoor.

File information

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

Vidar

zip fc8fd2e9a4cf0a4c15028d0fdfeeda3e8c887969b7c1a835e509006e21059d37

Vidar

exe cd26dbb9c803aa81bc353a528ea8335bd3070fdc988e0c98b070b1426d595c28

(this sample)

Dropped by

MD5 74da149c15f383bfc2e411cc9d886dc6

Dropped by

SHA256 fc8fd2e9a4cf0a4c15028d0fdfeeda3e8c887969b7c1a835e509006e21059d37

Cape

https://www.capesandbox.com/analysis/45762/

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