MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 900bc27a8373e847376ee2656a41773f554b5e78227e4c881597d24243cc3288. 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: 900bc27a8373e847376ee2656a41773f554b5e78227e4c881597d24243cc3288
SHA3-384 hash: 1a1a08439c3e0dcd9ae01f0005f241b39faeaacf7de4f6c3b861ff2e0a237af047741e621a18891b8111223745a47843
SHA1 hash: 8e92c32e2e3922558000f9ce559ac1eac38c1816
MD5 hash: c2a65c8039f933952774404ac3b0cea3
humanhash: london-rugby-nuts-coffee
File name:FACTURA0987654324567890000.exe
Download: download sample
Signature AgentTesla
File size:12'288 bytes
First seen:2025-08-25 16:09:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 192:JILkbp+tMxCc3LoA5ZWAVBvAVX092JILH70Q68zt3QuHjcUuDURrJYBPDc:KIEd65UIBvAVEEJubRrzt3QGuDUFJw7
TLSH T142421902678C923BD9AA4ABD99B341405BF5E7032602EF183889A1477D233392F577F3
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
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
89
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
FACTURA0987654324567890000.exe
Verdict:
Malicious activity
Analysis date:
2025-08-25 16:12:50 UTC
Tags:
auto-startup stealer evasion ultravnc rmm-tool ftp agenttesla exfiltration netreactor

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

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 masquerade
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-25T12:06:00Z UTC
Last seen:
2025-08-25T12:06:00Z UTC
Hits:
~100
Result
Threat name:
AgentTesla, PureLog Stealer, ResolverRAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Drops VBS files to the startup folder
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected ResolverRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1764741 Sample: FACTURA0987654324567890000.exe Startdate: 25/08/2025 Architecture: WINDOWS Score: 100 28 ftp.antoniomayol.com 2->28 30 antoniomayol.com 2->30 32 3 other IPs or domains 2->32 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 11 other signatures 2->56 8 FACTURA0987654324567890000.exe 15 5 2->8         started        13 wscript.exe 1 2->13         started        signatures3 process4 dnsIp5 34 gugaequiposyservicios.com.mx 162.241.60.209, 443, 49691, 49697 UNIFIEDLAYER-AS-1US United States 8->34 24 C:\Users\user\AppData\...\TargetSite.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\...\TargetSite.vbs, ASCII 8->26 dropped 66 Drops VBS files to the startup folder 8->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->68 15 InstallUtil.exe 14 2 8->15         started        70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->70 19 TargetSite.exe 14 2 13->19         started        file6 signatures7 process8 dnsIp9 36 antoniomayol.com 162.241.62.63, 21, 49693, 49699 UNIFIEDLAYER-AS-1US United States 15->36 38 ip-api.com 208.95.112.1, 49692, 49698, 80 TUT-ASUS United States 15->38 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 15->42 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->44 48 2 other signatures 15->48 46 Multi AV Scanner detection for dropped file 19->46 21 InstallUtil.exe 2 19->21         started        signatures10 process11 signatures12 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->58 60 Tries to steal Mail credentials (via file / registry access) 21->60 62 Tries to harvest and steal ftp login credentials 21->62 64 Tries to harvest and steal browser information (history, passwords, etc) 21->64
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.56 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.Jalapeno
Status:
Malicious
First seen:
2025-08-25 15:59:37 UTC
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Unpacked files
SH256 hash:
900bc27a8373e847376ee2656a41773f554b5e78227e4c881597d24243cc3288
MD5 hash:
c2a65c8039f933952774404ac3b0cea3
SHA1 hash:
8e92c32e2e3922558000f9ce559ac1eac38c1816
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
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)

File information


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

Malspam

AgentTesla

Executable exe 900bc27a8373e847376ee2656a41773f554b5e78227e4c881597d24243cc3288

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments