MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ab4126229b73320d15647edcd1af5fbd138d651fa2869cc20be9845f70570e79. 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
AgentTesla
Vendor detections: 15
| SHA256 hash: | ab4126229b73320d15647edcd1af5fbd138d651fa2869cc20be9845f70570e79 |
|---|---|
| SHA3-384 hash: | b16262e9c2dffb3964f78104892419210611471c1a7f504c91f34fda6144a5bb4e2844822271480c36cd0d6f4bbbfab9 |
| SHA1 hash: | 31ff77cef10425476fa23eda78e000af95b8ad44 |
| MD5 hash: | ec0431d7e177b29ebe913a6230500436 |
| humanhash: | echo-freddie-north-jersey |
| File name: | ec0431d7e177b29ebe913a6230500436 |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 1'313'904 bytes |
| First seen: | 2024-03-29 21:26:53 UTC |
| Last seen: | 2024-03-29 23:19:43 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 24576:DNKPdZs4Cna/uOC1cJcFvMandWGRAW1UpMrnPSv677LtSHVbo18pp7enVyBrhw6:hKg4Ca2H1H9fdTimUpMX7vl8b7eV96 |
| Threatray | 1'625 similar samples on MalwareBazaar |
| TLSH | T1ED5533D633E8842DE2DF49B1717EF2720B34A36B3CADE5070C4D48DAA518741EB46B5A |
| 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 AgentTesla exe |
Intelligence
File Origin
# of uploads :
2
# of downloads :
369
Origin country :
FRVendor Threat Intelligence
Malware family:
orcus
ID:
1
File name:
ab4126229b73320d15647edcd1af5fbd138d651fa2869cc20be9845f70570e79.exe
Verdict:
Malicious activity
Analysis date:
2024-03-29 21:35:01 UTC
Tags:
rat orcus remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Blocking the User Account Control
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
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:
Orcus
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to disable the Task Manager (.Net Source)
Disables UAC (registry)
Drops PE files with benign system names
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Orcus RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
97%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.Casdet
Status:
Malicious
First seen:
2024-03-29 21:27:07 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
18 of 23 (78.26%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 1'615 additional samples on MalwareBazaar
Result
Malware family:
orcus
Score:
10/10
Tags:
family:orcus evasion persistence rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Windows security modification
Looks for VMWare Tools registry key
Orcurs Rat Executable
Looks for VirtualBox Guest Additions in registry
Orcus
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
94.156.10.119:443
Unpacked files
SH256 hash:
ab4126229b73320d15647edcd1af5fbd138d651fa2869cc20be9845f70570e79
MD5 hash:
ec0431d7e177b29ebe913a6230500436
SHA1 hash:
31ff77cef10425476fa23eda78e000af95b8ad44
Malware family:
OrcusRAT
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: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | INDICATOR_EXE_Packed_Fody |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables manipulated with Fody |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifacts observed in infostealers |
| Rule name: | malware_Agenttesla_type2 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Agenttesla in memory |
| Reference: | internal research |
| Rule name: | MAL_BackNet_Nov18_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects BackNet samples |
| Reference: | https://github.com/valsov/BackNet |
| Rule name: | MAL_BackNet_Nov18_1_RID2D6D |
|---|---|
| Author: | Florian Roth |
| Description: | Detects BackNet samples |
| Reference: | https://github.com/valsov/BackNet |
| Rule name: | Multifamily_RAT_Detection |
|---|---|
| Author: | Lucas Acha (http://www.lukeacha.com) |
| Description: | Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RAT_win_Orcus |
|---|---|
| Author: | KrknSec |
| Description: | Detects Orcus RAT |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.orcus_rat |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_orcus_rat_simple_strings_dec_2023 |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Strings observed in Orcus RAT |
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 |
Comments
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