MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 99b41a3ffef3e2d26ad47f46e616dae81b3991c3705a7892a92e2ffd74307658. 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
LockBit
Vendor detections: 11
| SHA256 hash: | 99b41a3ffef3e2d26ad47f46e616dae81b3991c3705a7892a92e2ffd74307658 |
|---|---|
| SHA3-384 hash: | 04d0f4a87e7943da410e44bee2b544d738a5978fcb540412d56a2d94f56ab19d9d20b1ddf84fc0f6b9f6cc88382204ba |
| SHA1 hash: | b2b0244b03e80a3e3b355a535411faf3bf4fce74 |
| MD5 hash: | 1dff89c029b823fa2a3b488d4a57affb |
| humanhash: | double-finch-pizza-enemy |
| File name: | ThermoCalc2026a-CrackedBy-DoCrackMe.exe.exe |
| Download: | download sample |
| Signature | LockBit |
| File size: | 267'264 bytes |
| First seen: | 2026-08-19 09:11:13 UTC |
| Last seen: | 2026-08-19 09:20:08 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6f23f342dd8659917333dbc188511f68 (1 x LockBit) |
| ssdeep | 6144:lk5uvFbgkqqz06YLlafvOw0Vemh9ddzqt:V5gPj6YLla3WVemTddw |
| TLSH | T18D440804F50F9FE8DA93433C4957511AFEBB73812B108EE7868845721E0B5D227AEFA5 |
| TrID | 37.0% (.EXE) Win64 Executable (generic) (6522/11/2) 28.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 11.5% (.EXE) OS/2 Executable (generic) (2029/13) 11.3% (.EXE) Generic Win/DOS Executable (2002/3) 11.3% (.EXE) DOS Executable (generic) (2000/1) |
| Magika | pebin |
| Reporter | Anonymous |
| Tags: | exe lockbit Ransom |
Intelligence
File Origin
# of uploads :
2
# of downloads :
362
Origin country :
DEVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
99b41a3ffef3e2d26ad47f46e616dae81b3991c3705a7892a92e2ffd74307658.exe
Verdict:
Malicious activity
Analysis date:
2026-08-19 10:43:39 UTC
Tags:
smb ransomware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
DNS request
Connection attempt
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-debug captcha expand lolbin microsoft_visual_cc obfuscated
Verdict:
Malicious
Labled as:
Capa_initialize_WinHTTP_library
Malware family:
Conti
Verdict:
Malicious
Score:
100%
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
Threat name:
Win64.Ransomware.Lockbit
Status:
Malicious
First seen:
2026-08-19 09:16:21 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
ContiRansomware
GazpromRansomware
Result
Malware family:
n/a
Score:
3/10
Tags:
execution ransomware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Executes a command shell one-liner
Unpacked files
SH256 hash:
99b41a3ffef3e2d26ad47f46e616dae81b3991c3705a7892a92e2ffd74307658
MD5 hash:
1dff89c029b823fa2a3b488d4a57affb
SHA1 hash:
b2b0244b03e80a3e3b355a535411faf3bf4fce74
Detections:
ContiRansomware
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: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| 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.
Web download
Delivery method
Distributed via web download
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