MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b1ff33b10d329eadf084429f2fa47857f70b4738121c9dbf2e06fb50f5975d0d. 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
| SHA256 hash: | b1ff33b10d329eadf084429f2fa47857f70b4738121c9dbf2e06fb50f5975d0d |
|---|---|
| SHA3-384 hash: | f1e5b652574ad86c9d7a7c7deb2bc9ad1c7e0bcae4851630466994aacc0c9c9b367bd4841169d8c48d2727b849cbd677 |
| SHA1 hash: | 3cafb8f5ea18b75a2c6c9d9f79644900a2dd1958 |
| MD5 hash: | 02e0eb24e537dc0d5978e125a3faafa4 |
| humanhash: | saturn-august-pip-pluto |
| File name: | b1ff33b10d329eadf084429f2fa47857f70b4738121c9dbf2e06fb50f5975d0d |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 437'856 bytes |
| First seen: | 2025-06-10 11:11:04 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 6144:xjSLvfeVhv0/9cpfxHT/3zA6L5b1Onbx9/BRJnvwLLkBeecUm0E1:xjSL+Vu/KRtBOdCLkkec31 |
| TLSH | T130941A05A7EC8711F2EB5775F8B322004EBDFC82AA85DB5E252468DC1CA37099D41B7B |
| TrID | 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | 336dc9aced0c33cb (6 x AgentTesla, 1 x ResolverRAT, 1 x DarkCloud) |
| Reporter |  adrian__luca |
| Tags: | AgentTesla exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
272
Origin country :
HUVendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
b1ff33b10d329eadf084429f2fa47857f70b4738121c9dbf2e06fb50f5975d0d
Verdict:
Malicious activity
Analysis date:
2025-06-05 13:29:34 UTC
Tags:
evasion stealer ultravnc rmm-tool exfiltration agenttesla
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
virus micro lien msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Restart of the analyzed sample
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request to an infection source
Stealing user critical data
Verdict:
Malicious
Labled as:
Trojan.Generic
Malware family:
Agent Tesla
Verdict:
Malicious
Result
Threat name:
AgentTesla, ResolverRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Uses threadpools to delay analysis
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected ResolverRAT
Behaviour
Behavior Graph:
Score:
65%
Verdict:
Susipicious
File Type:
PE
Threat name:
Win32.Trojan.DarkCloud
Status:
Malicious
First seen:
2025-05-29 01:29:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 36 (80.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
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
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
external_ip_lookup
YARA:
n/a
Unpacked files
SH256 hash:
b1ff33b10d329eadf084429f2fa47857f70b4738121c9dbf2e06fb50f5975d0d
MD5 hash:
02e0eb24e537dc0d5978e125a3faafa4
SHA1 hash:
3cafb8f5ea18b75a2c6c9d9f79644900a2dd1958
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_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| 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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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