MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 66871cebfa92f04476679fb3b00a125f7eb43ea35cfb8b187b4aa2bbd0230c10. 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
KnightCrypt
Vendor detections: 9
| SHA256 hash: | 66871cebfa92f04476679fb3b00a125f7eb43ea35cfb8b187b4aa2bbd0230c10 |
|---|---|
| SHA3-384 hash: | ad5dfce54cdb93c6b308f8dddd4febfe1291eff1e91fa0ead29ff691ce8d5f74e27f42581151c8cdcac4c85eadc73186 |
| SHA1 hash: | ee26bd8b2903582bc7bc34962bf28c7ad0f2d7bd |
| MD5 hash: | e489be3297effb32e5b015ffd20a3f3d |
| humanhash: | skylark-skylark-india-sink |
| File name: | 6.bin |
| Download: | download sample |
| Signature | KnightCrypt |
| File size: | 1'392'760 bytes |
| First seen: | 2023-08-29 13:49:57 UTC |
| Last seen: | 2023-09-04 06:18:01 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 92ed8fb21c381a073a5e7ca35347f90e (13 x KnightCrypt) |
| ssdeep | 12288:cBVVtkNBJOlMmXP0447OdMyogfJ7gwPueClVVRWM5YDh8xpoPkouMA+nkGGCp+1E:1TcCG0447AMVgfdnTClVm4QkcGRbS |
| Threatray | 9 similar samples on MalwareBazaar |
| TLSH | T15F556B07B69941E8D43AC1B0CA564332EE71BC950F34A9DF0690B3592F7BEE46B3A711 |
| TrID | 63.5% (.EXE) Win64 Executable (generic) (10523/12/4) 12.2% (.EXE) OS/2 Executable (generic) (2029/13) 12.0% (.EXE) Generic Win/DOS Executable (2002/3) 12.0% (.EXE) DOS Executable Generic (2000/1) |
| File icon (PE): |  |
| dhash icon | 40317969e9e96000 (17 x KnightCrypt, 1 x Knight) |
| Reporter |  JAMESWT_WT |
| Tags: | 89-23-96-203 exe KnightCrypt |
Intelligence
File Origin
# of uploads :
3
# of downloads :
326
Origin country :
ITVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6.bin
Verdict:
No threats detected
Analysis date:
2023-08-29 13:53:18 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
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Launching a process
Creating a file in the mass storage device
Unauthorized injection to a system process
Encrypting user's files
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
90%
Tags:
anti-debug control explorer greyware lolbin masquerade overlay packed phishing shell32
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Result
Threat name:
KnightCrypt
Detection:
malicious
Classification:
evad.rans.expl
Score:
100 / 100
Signature
Antivirus detection for dropped file
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
Found evasive API chain (may stop execution after checking mutex)
Found hidden mapped module (file has been removed from disk)
Found ransom note / readme
Found Tor onion address
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Modifies existing user documents (likely ransomware behavior)
PE file contains section with special chars
System process connects to network (likely due to code injection or exploit)
Writes a notice file (html or txt) to demand a ransom
Writes to foreign memory regions
Yara detected KnightCrypt Ransomware
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.Synder
Status:
Malicious
First seen:
2023-08-29 13:48:33 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
10 of 23 (43.48%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
Result
Malware family:
n/a
Score:
10/10
Tags:
ransomware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops desktop.ini file(s)
Enumerates connected drives
Renames multiple (197) files with added filename extension
Unpacked files
SH256 hash:
66871cebfa92f04476679fb3b00a125f7eb43ea35cfb8b187b4aa2bbd0230c10
MD5 hash:
e489be3297effb32e5b015ffd20a3f3d
SHA1 hash:
ee26bd8b2903582bc7bc34962bf28c7ad0f2d7bd
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.58
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_OutputDebugStringA_iat |
|---|
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
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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