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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03bbc4fa1fd784276da135ab62fef85aaddea66e6eb176d7e59c3398f818b153. 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: 13


Intelligence 13 IOCs YARA 28 File information Comments

SHA256 hash: 03bbc4fa1fd784276da135ab62fef85aaddea66e6eb176d7e59c3398f818b153
SHA3-384 hash: dc1a4800d8685ccc4e57c991cb53c901490238cf091a4a04812e2632f2790fd12a080255b1a4b139af8d4471516caf9b
SHA1 hash: 8cc4649a0f87a927d999ec352a65d88a0335a3cf
MD5 hash: b149948bf55a3313d8d355de6d663b7d
humanhash: victor-juliet-sierra-spaghetti
File name:build.exe
Download: download sample
Signature Vidar
File size:2'898'432 bytes
First seen:2026-03-20 07:38:49 UTC
Last seen:2026-03-20 08:44:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (101 x Vidar, 30 x RemusStealer, 26 x Smoke Loader)
ssdeep 49152:g78s6OMEXRUTIJr4a5oT8+G/0UK0weK6Fb2C3D4wOM2FSNA:g7CrSR/TETM2
TLSH T10ED57C03BD9148E9C0AE927689A799967B70BC080F3223E71F90BA743F72BD05D79754
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter abuse_ch
Tags:exe vidar

Intelligence


File Origin
# of uploads :
2
# of downloads :
196
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
ID:
1
File name:
build.exe
Verdict:
Malicious activity
Analysis date:
2026-03-17 19:11:57 UTC
Tags:
vidar xor-url generic auto-reg golang

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
dropper virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching cmd.exe command interpreter
Launching a process
Result
Threat name:
GO Loader, Vidar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates autostart registry keys with suspicious names
Detected unpacking (creates a PE file in dynamic memory)
Drops PE files to the document folder of the user
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected GO Loader
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1886736 Sample: build.exe Startdate: 20/03/2026 Architecture: WINDOWS Score: 100 26 telegram.me 2->26 28 steamcommunity.com 2->28 30 ooe.myserver.com.bd 2->30 38 Suricata IDS alerts for network traffic 2->38 40 Found malware configuration 2->40 42 Antivirus detection for URL or domain 2->42 44 6 other signatures 2->44 8 build.exe 8 2->8         started        13 $99build.exe 2->13         started        15 $99build.exe 2->15         started        signatures3 process4 dnsIp5 32 telegram.me 149.154.167.99, 443, 49727, 49731 TELEGRAMRU United Kingdom 8->32 34 ooe.myserver.com.bd 104.21.82.44, 443, 49729, 49733 CLOUDFLARENETUS United States 8->34 36 steamcommunity.com 23.4.33.50, 443, 49728, 49732 AKAMAI-ASUS United States 8->36 24 C:\Users\user\Documents\$99build.exe, PE32+ 8->24 dropped 48 Detected unpacking (creates a PE file in dynamic memory) 8->48 50 Drops PE files to the document folder of the user 8->50 52 Tries to detect virtualization through RDTSC time measurements 8->52 54 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->54 17 cmd.exe 1 8->17         started        56 Multi AV Scanner detection for dropped file 13->56 58 Unusual module load detection (module proxying) 13->58 60 Potentially malicious time measurement code found 13->60 file6 signatures7 process8 process9 19 reg.exe 1 1 17->19         started        22 conhost.exe 17->22         started        signatures10 46 Creates autostart registry keys with suspicious names 19->46
Gathering data
Threat name:
Win64.Trojan.Vidar
Status:
Malicious
First seen:
2026-03-02 12:39:42 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:vidar botnet:ce6c626a360cbe6cf935ca98850fbcc0 persistence stealer
Behaviour
Suspicious use of WriteProcessMemory
Adds Run key to start application
Executes dropped EXE
Detects Vidar Stealer
Vidar
Vidar family
Malware Config
C2 Extraction:
95.217.227.187
https://telegram.me/m0r5hl
https://steamcommunity.com/profiles/76561198733506974
Unpacked files
SH256 hash:
03bbc4fa1fd784276da135ab62fef85aaddea66e6eb176d7e59c3398f818b153
MD5 hash:
b149948bf55a3313d8d355de6d663b7d
SHA1 hash:
8cc4649a0f87a927d999ec352a65d88a0335a3cf
Please note that we are no longer able to provide a coverage score for Virus Total.

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_Debugger
Rule name:command_and_control
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
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectGoMethodSignatures
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:GoBinTest
Rule name:golang
Rule name:Golangmalware
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:ProgramLanguage_Golang
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Suspicious_Golang_Binary
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_URL_In_EXE
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:sus_pe_free_without_allocation
Author:Maxime THIEBAUT (@0xThiebaut)
Description:Detects an executable importing functions to free memory without importing allocation functions, often indicative of dynamic import resolution
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
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
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.

File information


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

Comments