MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f. 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
PrivateLoader
Vendor detections: 15
| SHA256 hash: | fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f |
|---|---|
| SHA3-384 hash: | e7d754a4becd1b15d0ac6e17d837cb46182b72d1709119dc62c5fbcda3b47a966bc41c05292dd3c6cd4c703242200a51 |
| SHA1 hash: | 3988195503348626e8f9185747a216c8e7839130 |
| MD5 hash: | a991da123f34074f2ee8ea0d798990f9 |
| humanhash: | ack-lion-whiskey-california |
| File name: | a991da123f34074f2ee8ea0d798990f9 |
| Download: | download sample |
| Signature | PrivateLoader |
| File size: | 593'128 bytes |
| First seen: | 2024-05-30 11:12:35 UTC |
| Last seen: | 2024-05-30 12:27:29 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 12288:ntSXI9aVcVXyB7qngm/krqaeAPu3YNEYId/yhlJQNXU:neI9aucNSk2H+yCId/iQC |
| Threatray | 21 similar samples on MalwareBazaar |
| TLSH | T1AEC4F1FC79AEEE83E3FDC671D46112048BB965337742D746C881E4DE0A227C1A6468DB |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  zbetcheckin |
| Tags: | 64 exe PrivateLoader signed |
Code Signing Certificate
| Organisation: | Microsoft Code Signing PCA 2011 |
|---|---|
| Issuer: | Microsoft Code Signing PCA 2011 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2024-05-26T08:05:26Z |
| Valid to: | 2025-05-26T08:05:26Z |
| Serial number: | 3a74618648ea539f6c1529a63e6b9329 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 7f2a73cee966822cec535dc43a4aadcdf894727a6a58b8421e6293acb04e6d35 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
337
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f.exe
Verdict:
Malicious activity
Analysis date:
2024-05-30 11:19:54 UTC
Tags:
opendir evasion loader berbew adware neoreklami privateloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
Tags:
Encryption Execution Generic Network Static Stealth Msilzilla
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Sending an HTTP GET request to an infection source
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a process from a recently created file
Creating a window
Creating a file in the %temp% directory
Sending a UDP request
Moving a file to the %temp% directory
Searching for analyzing tools
Blocking the User Account Control
Connection attempt to an infection source
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to infect the boot sector
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Disables UAC (registry)
Drops script or batch files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Writes many files with high entropy
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
96%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.Casdet
Status:
Malicious
First seen:
2024-05-26 15:57:53 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 11 additional samples on MalwareBazaar
Result
Malware family:
privateloader
Score:
10/10
Tags:
family:dcrat family:privateloader adware bootkit discovery evasion execution infostealer loader persistence rat spyware stealer themida trojan
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks for any installed AV software in registry
Checks installed software on the system
Checks whether UAC is enabled
Drops Chrome extension
Drops desktop.ini file(s)
Enumerates connected drives
Installs/modifies Browser Helper Object
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Maps connected drives based on registry
Writes to the Master Boot Record (MBR)
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
Reads user/profile data of web browsers
Registers COM server for autorun
Themida packer
Unexpected DNS network traffic destination
Windows security modification
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Installed Components in the registry
Sets service image path in registry
Identifies VirtualBox via ACPI registry values (likely anti-VM)
DcRat
Modifies firewall policy service
PrivateLoader
UAC bypass
Windows security bypass
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
23348ad5082f635368f90239aea6e20d8035f30010ba6730ba8beea8846a6521
MD5 hash:
1345812e6c23ada1057aa03701cced56
SHA1 hash:
ff05b85253d6820740235f5e42842534d7299049
SH256 hash:
fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f
MD5 hash:
a991da123f34074f2ee8ea0d798990f9
SHA1 hash:
3988195503348626e8f9185747a216c8e7839130
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: | INDICATOR_SUSPICIOUS_EXE_RawPaste_URL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables (downlaoders) containing URLs to raw contents of a paste |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | MSIL_TinyDownloader_Generic |
|---|---|
| Author: | albertzsigovits |
| Description: | Detects small-sized dotNET downloaders |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| 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_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
Comments
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