MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4ec050b4dfd931ed6d30256b3ed1d042f313860da23e7ca064aaf95ad83e257e. 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
PureLogsStealer
Vendor detections: 14
| SHA256 hash: | 4ec050b4dfd931ed6d30256b3ed1d042f313860da23e7ca064aaf95ad83e257e |
|---|---|
| SHA3-384 hash: | ae3ef29f2bdb01eab9f1eba231f66061e93b69234e02bfbf75d96ceac7627da1d965cf798565e7aef35df45a4e927cd9 |
| SHA1 hash: | 0e5981933d18a50a8424700305420f492a71aafe |
| MD5 hash: | 681ecd41ed50e6b0ae4470991cd4a0d6 |
| humanhash: | pizza-jupiter-comet-spaghetti |
| File name: | 681ecd41ed50e6b0ae4470991cd4a0d6 |
| Download: | download sample |
| Signature | PureLogsStealer |
| File size: | 37'672 bytes |
| First seen: | 2024-04-28 16:43:36 UTC |
| Last seen: | 2024-04-28 18:18:59 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 384:2QbMkYQbSKDQbkoKDVbJdpGKDGPGAttNyb8E9VF6IYinAM+oP9YkB/5OtMh:fIZA39EPGQJEpYinAMxhBTh |
| Threatray | 2'168 similar samples on MalwareBazaar |
| TLSH | T1FC032B262794D889D8C08D305DC7AE741DF1F9635880D7EB33C0AB2D9F73B82E519169 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| File icon (PE): |  |
| dhash icon | 696a6ee2b2b2c2cc (18 x RedLineStealer, 17 x LummaStealer, 16 x CoinMiner) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe PureLogStealer |
Intelligence
File Origin
# of uploads :
3
# of downloads :
305
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4ec050b4dfd931ed6d30256b3ed1d042f313860da23e7ca064aaf95ad83e257e.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 16:51:16 UTC
Tags:
purecrypter
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
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Forced system process termination
Creating a process from a recently created file
Deleting a recently created file
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
obfuscated overlay packed packed smartassembly
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
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.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
PureLog Stealer
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
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Connects to many ports of the same IP (likely port scanning)
Downloads files with wrong headers with respect to MIME Content-Type
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suspicious powershell command line found
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)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Smokeloader
Status:
Malicious
First seen:
2024-04-28 16:44:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 23 (78.26%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 2'158 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Score:
10/10
Tags:
family:zgrat rat spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
4ec050b4dfd931ed6d30256b3ed1d042f313860da23e7ca064aaf95ad83e257e
MD5 hash:
681ecd41ed50e6b0ae4470991cd4a0d6
SHA1 hash:
0e5981933d18a50a8424700305420f492a71aafe
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | INDICATOR_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PureCrypter |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies PureCrypter, .NET loader and obfuscator. |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter |
| 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.
Web download
Delivery method
Distributed via web download
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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