MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ec6ca0644090c3dcb211897e5747f57dc7d947209f52a63fc09f8d44f0c558be. 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
YapStealer
Vendor detections: 8
| SHA256 hash: | ec6ca0644090c3dcb211897e5747f57dc7d947209f52a63fc09f8d44f0c558be |
|---|---|
| SHA3-384 hash: | 5fa8291b5ff3f33af43cbba116e48bd8b79dfa8550eeef61a1b05939169c7bd0067488a52ee18e6e1f7db50761167235 |
| SHA1 hash: | b8d66a5d1aa53a6255565d715f4389a13418e2ea |
| MD5 hash: | 345d9252c3e1c7780680d4ad07f5e541 |
| humanhash: | minnesota-social-crazy-finch |
| File name: | newisbest.exe |
| Download: | download sample |
| Signature | YapStealer |
| File size: | 1'008'128 bytes |
| First seen: | 2026-10-07 17:52:29 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/vnd.microsoft.portable-executable |
| imphash | cd7f9b31e280960fb35cd6f5d00df2ed (1 x YapStealer) |
| ssdeep | 24576:T7UgQFyM2jOg1ZbuiuAcIhSh2KXCJh83Ob:T7UnFyM2jOg1ZbuiRThSh2KXCJe3O |
| TLSH | T1F32557F46BB90BB3F71344744243E0CEA965AC0317B178BA19DC8F6AF93D9905AF0616 |
| TrID | 51.9% (.EXE) Win64 Executable (generic) (6522/11/2) 16.1% (.EXE) OS/2 Executable (generic) (2029/13) 15.9% (.EXE) Generic Win/DOS Executable (2002/3) 15.9% (.EXE) DOS Executable (generic) (2000/1) |
| Magika | pebin |
| dhash icon | 280968686969e004 (1 x YapStealer) |
| Reporter |  aachum |
| Tags: | dropped-by-OffLoader exe YapStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
188
Origin country :
ESVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Suspicious activity
Analysis date:
2026-10-07 18:22:36 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for synchronization primitives
Creating a window
Unauthorized injection to a system process
Verdict:
Unknown
Threat level:
2.5/10
Confidence:
100%
Tags:
anti-debug microsoft_visual_cc reconnaissance
Verdict:
Malicious
Labled as:
Win64/Kryptik.HRN trojan
Verdict:
Unknown
Result
Threat name:
n/a
Detection:
malicious
Classification:
phis.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Suspicious access to claude desktop data directory by non-Claude process
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
88%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
6/10
Tags:
discovery spyware
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Time Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Unpacked files
SH256 hash:
ec6ca0644090c3dcb211897e5747f57dc7d947209f52a63fc09f8d44f0c558be
MD5 hash:
345d9252c3e1c7780680d4ad07f5e541
SHA1 hash:
b8d66a5d1aa53a6255565d715f4389a13418e2ea
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| 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. |
| Rule name: | WIN_Malware_Unknown_ForgeAuto_3ee43008 |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Unknown (pe, etat binaire) |
| Rule name: | WIN_Malware_Unknown_ForgeAuto_4fa7e284_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Unknown (pe, etat extrait) |
| Rule name: | WIN_Sample_Unique_69354b41 |
|---|---|
| Author: | Marjoriefort |
| Description: | Specimen unique (soumission Bazaar) - strings distinctifs propres au sample |
| Reference: | 69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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