MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4bfe3c56e96d2d6979b9b0af00d783ccca027a3ff87b9d4e1aa7dc3b6208a21. 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: 14


Intelligence 14 IOCs YARA 8 File information Comments

SHA256 hash: e4bfe3c56e96d2d6979b9b0af00d783ccca027a3ff87b9d4e1aa7dc3b6208a21
SHA3-384 hash: 96e1e1247d6ae256cec792ac7bf647814016be70db0554c488d05a43f5d026de145e313cf9002cb9ededc7bff6600a6d
SHA1 hash: 8995c47fb784ed603d30585bd5be021aaef25d02
MD5 hash: 3d8e1e059c4924d652994cb74c893cfa
humanhash: maine-ceiling-yellow-six
File name:cuhwjq27i23xafvb.exe
Download: download sample
Signature AgentTesla
File size:481'536 bytes
First seen:2025-07-21 11:07:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:DS+iqed/619prNJaLuLap5xR62eaCMyCgNUoI7bzqQcoJYg6:+2edYTr3aLCeXghIj3JYt
Threatray 13 similar samples on MalwareBazaar
TLSH T16EA44A147FA98A08D540153E469E2A09CBEAD1F221326307370AFF615D45DDEEE2D3EB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
dhash icon e1f0c1e0b6ea68e4 (4 x AgentTesla)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cuhwjq27i23xafvb.exe
Verdict:
Malicious activity
Analysis date:
2025-07-20 20:00:31 UTC
Tags:
auto-sch

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
autorun shell micro sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Running batch commands
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the Windows subdirectories
Launching a process
Creating a file in the Windows directory
Enabling the libraries to load when starting the app (AppInit_DLLs)
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Loading a suspicious library
Connection attempt
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Enabling autorun
Enabling autorun by creating a file
Result
Threat name:
SheetRat
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allows loading of unsigned dll using appinit_dll
C2 URLs / IPs found in malware configuration
Contains functionality to capture screen (.Net source)
Creates an undocumented autostart registry key
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Joe Sandbox ML detected suspicious sample
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Sigma detected: Explorer NOUACCHECK Flag
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected SheetRat
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1741115 Sample: cuhwjq27i23xafvb.exe Startdate: 21/07/2025 Architecture: WINDOWS Score: 100 74 g-bing-com.ax-0001.ax-msedge.net 2->74 76 ax-0003.ax-msedge.net 2->76 78 4 other IPs or domains 2->78 84 Suricata IDS alerts for network traffic 2->84 86 Found malware configuration 2->86 88 Multi AV Scanner detection for dropped file 2->88 90 12 other signatures 2->90 9 cuhwjq27i23xafvb.exe 1 12 2->9         started        13 xdwdSearcher.exe 1 2->13         started        15 explorer.exe 2->15         started        18 xdwdSearch.exe 1 2->18         started        signatures3 process4 dnsIp5 66 C:\Windows\xdwd.dll, PE32+ 9->66 dropped 68 C:\Windows\systemd\linux\...\xdwdSearcher.exe, PE32 9->68 dropped 70 C:\Users\user\AppData\...\xdwdSearch.exe, PE32 9->70 dropped 72 C:\Users\user\...\cuhwjq27i23xafvb.exe.log, CSV 9->72 dropped 102 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->102 104 Obfuscated command line found 9->104 106 Creates an undocumented autostart registry key 9->106 118 2 other signatures 9->118 20 xdwdSearch.exe 1 4 9->20         started        24 cmd.exe 1 9->24         started        26 cmd.exe 1 9->26         started        28 2 other processes 9->28 108 Multi AV Scanner detection for dropped file 13->108 110 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 13->110 112 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 13->112 82 ax-0003.ax-msedge.net 150.171.28.12, 443, 49698 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 15->82 114 System process connects to network (likely due to code injection or exploit) 15->114 116 Query firmware table information (likely to detect VMs) 15->116 file6 signatures7 process8 dnsIp9 80 89.23.102.7, 49690, 49694, 49696 MAXITEL-ASRU Russian Federation 20->80 92 Multi AV Scanner detection for dropped file 20->92 94 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->94 96 Creates an undocumented autostart registry key 20->96 100 2 other signatures 20->100 30 cmd.exe 20->30         started        32 cmd.exe 20->32         started        34 cmd.exe 20->34         started        46 2 other processes 20->46 98 Uses schtasks.exe or at.exe to add and modify task schedules 24->98 36 conhost.exe 24->36         started        38 conhost.exe 26->38         started        40 schtasks.exe 1 26->40         started        42 conhost.exe 28->42         started        44 schtasks.exe 1 28->44         started        signatures10 process11 process12 48 conhost.exe 30->48         started        50 taskkill.exe 30->50         started        64 2 other processes 30->64 52 conhost.exe 32->52         started        54 schtasks.exe 32->54         started        56 conhost.exe 34->56         started        58 schtasks.exe 34->58         started        60 conhost.exe 46->60         started        62 timeout.exe 46->62         started       
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.92 Win 32 Exe x86
Verdict:
Malicious
Threat:
HEUR:Backdoor.MSIL.AsyncRat
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-07-20 20:02:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 22 (90.91%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution persistence privilege_escalation
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Event Triggered Execution: AppInit DLLs
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
e4bfe3c56e96d2d6979b9b0af00d783ccca027a3ff87b9d4e1aa7dc3b6208a21
MD5 hash:
3d8e1e059c4924d652994cb74c893cfa
SHA1 hash:
8995c47fb784ed603d30585bd5be021aaef25d02
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:botnet_plaintext_c2
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
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:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments