MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fcb840d5e65fc86ed5637bdcbab0ecde764d360ebe18a5e5d6795811dc1c622. 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



PureCrypter


Vendor detections: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: 3fcb840d5e65fc86ed5637bdcbab0ecde764d360ebe18a5e5d6795811dc1c622
SHA3-384 hash: 82e392672b06bf40a1a4e60b6d1bc49ae87f8af2f77ee9be8707a32074f123b7ced808486fbfd126f19c59614bd043d0
SHA1 hash: f86b35526cd61c8aab3911b11ca692225e341906
MD5 hash: 19395fea893e3dcea476504227d56be6
humanhash: eighteen-montana-video-black
File name:202311218800-INV62009HX66549.scr
Download: download sample
Signature PureCrypter
File size:14'336 bytes
First seen:2023-11-22 20:38:12 UTC
Last seen:2023-11-22 22:28:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 192:Uebp41yqqdcA32GG0s4LqVrTC+xV/knQi1oo79ED607RQ:UeboyqCZ2GGOLqVTfknQyMR
Threatray 40 similar samples on MalwareBazaar
TLSH T18E52E7D89EDC45F2C93B47B68CB637032623FE9A4C667E192C1AB24858335511A73D8F
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 30eeae8cb6968ee8 (8 x zgRAT, 6 x PureCrypter, 3 x PureLogsStealer)
Reporter Anonymous
Tags:exe purecrypter

Intelligence


File Origin
# of uploads :
2
# of downloads :
343
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
202311218800-INV62009HX66549.scr
Verdict:
Malicious activity
Analysis date:
2023-11-22 20:38:54 UTC
Tags:
pureloader loader purelogs stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a file in the %temp% subdirectories
Using the Windows Management Instrumentation requests
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Contains functionality to capture screen (.Net source)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected Costura Assembly Loader
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1346602 Sample: 202311218800-INV62009HX6654... Startdate: 22/11/2023 Architecture: WINDOWS Score: 100 31 teleturismo.it 2->31 33 218.147.1.0.in-addr.arpa 2->33 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected zgRAT 2->49 51 .NET source code contains potential unpacker 2->51 53 4 other signatures 2->53 7 202311218800-INV62009HX66549.scr.exe 15 5 2->7         started        12 Agdmlknafe.exe 14 4 2->12         started        14 Agdmlknafe.exe 5 2->14         started        signatures3 process4 dnsIp5 35 teleturismo.it 185.2.5.56, 443, 49729, 49739 REGISTER_UK-ASGB Italy 7->35 27 C:\Users\user\AppData\...\Agdmlknafe.exe, PE32+ 7->27 dropped 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->55 57 Modifies the context of a thread in another process (thread injection) 7->57 59 Injects a PE file into a foreign processes 7->59 16 202311218800-INV62009HX66549.scr.exe 23 7->16         started        61 Multi AV Scanner detection for dropped file 12->61 63 Machine Learning detection for dropped file 12->63 21 Agdmlknafe.exe 12->21         started        23 Agdmlknafe.exe 14->23         started        file6 signatures7 process8 dnsIp9 29 91.92.120.127, 49736, 49737, 49741 INETLTDTR Cyprus 16->29 25 C:\Users\user\AppData\...\sqlite.interop.dll, PE32+ 16->25 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->37 39 Tries to steal Mail credentials (via file / registry access) 16->39 41 Found many strings related to Crypto-Wallets (likely being stolen) 16->41 43 Tries to harvest and steal Bitcoin Wallet information 16->43 45 Tries to harvest and steal browser information (history, passwords, etc) 23->45 file10 signatures11
Threat name:
ByteCode-MSIL.Trojan.Leonem
Status:
Malicious
First seen:
2023-11-22 05:43:44 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Result
Malware family:
purecrypter
Score:
  10/10
Tags:
family:purecrypter collection downloader loader persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
PureCrypter
Malware Config
C2 Extraction:
https://teleturismo.it/wp-includes/Tzvgdu.vdf
Unpacked files
SH256 hash:
3fcb840d5e65fc86ed5637bdcbab0ecde764d360ebe18a5e5d6795811dc1c622
MD5 hash:
19395fea893e3dcea476504227d56be6
SHA1 hash:
f86b35526cd61c8aab3911b11ca692225e341906
Detections:
PureCrypter_Stage1
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

PureCrypter

Executable exe 3fcb840d5e65fc86ed5637bdcbab0ecde764d360ebe18a5e5d6795811dc1c622

(this sample)

  
Delivery method
Distributed via e-mail attachment

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