MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 83a66ebda837bfa52232a03128d32dc773f827fcf20c5696e54a6077293b8a41. 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: 20
| SHA256 hash: | 83a66ebda837bfa52232a03128d32dc773f827fcf20c5696e54a6077293b8a41 |
|---|---|
| SHA3-384 hash: | 29c2af4f8b161b0489edf736e955a283a103cfbf39704293758df425026758698c2285d9d304caf04c05429ea76ef852 |
| SHA1 hash: | 44aeaa360be25e06e67268d5c610d422c390dd03 |
| MD5 hash: | 84d82639aa0891e1fdbcb3fdd3157496 |
| humanhash: | kitten-mockingbird-jupiter-idaho |
| File name: | ITT-QT2025DMT029.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 1'241'600 bytes |
| First seen: | 2025-12-10 15:40:37 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | c1ce208b1192bfcf652c179f34f034d3 (36 x AgentTesla, 23 x Formbook, 8 x SnakeKeylogger) |
| ssdeep | 24576:J5EmXFtKaL4/oFe5T9yyXYfP1MAXDzGIXm2+chTRylvqnu:JPVt/LZeJbInGizGCm2LTYl |
| Threatray | 1'068 similar samples on MalwareBazaar |
| TLSH | T1C345BF0273D1C066FFAB91334F5AF6115ABC79260123A62F13981DBABD701B1563E7A3 |
| TrID | 50.4% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 19.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.5% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.5% (.EXE) Win32 Executable (generic) (4504/4/1) 3.8% (.EXE) OS/2 Executable (generic) (2029/13) |
| Magika | pebin |
| dhash icon | aae2f3e38383b629 (2'644 x Formbook, 1'203 x CredentialFlusher, 909 x AgentTesla) |
| Reporter |  abuse_ch |
| Tags: | AgentTesla exe upx-dec |
abuse_ch
UPX decompressed file, sourced from SHA256 df9bee1b34188c7b8eb31a4d8a785c7c87f2d284f2c0ba5308bf75a5dbae5ff1UPX unpacked
This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.
| File size (compressed) : | 735'232 bytes |
|---|---|
| File size (de-compressed) : | 1'241'600 bytes |
| Format: | win32/pe |
| Packed file: | df9bee1b34188c7b8eb31a4d8a785c7c87f2d284f2c0ba5308bf75a5dbae5ff1 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
176
Origin country :
NLVendor Threat Intelligence
Malware configuration found for:
AutoIt
Details
AutoIt
extracted scripts and files
Malware family:
agenttesla
ID:
1
File name:
_83a66ebda837bfa52232a03128d32dc773f827fcf20c5696e54a6077293b8a41.exe
Verdict:
Malicious activity
Analysis date:
2025-12-10 15:42:39 UTC
Tags:
ultravnc rmm-tool stealer netreactor agenttesla
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Verdict:
Malicious
Score:
92.5%
Tags:
autoit emotet lien
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script fingerprint keylogger microsoft_visual_cc packed zeus
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-10T10:44:00Z UTC
Last seen:
2025-12-10T13:04:00Z UTC
Hits:
~10
Detections:
Trojan-PSW.MSIL.Agensla.d Trojan.Win32.Zenpak.sb Trojan.Win32.Auzenpak.sb Trojan.MSIL.Crypt.sb HEUR:Trojan-PSW.MSIL.Agensla.a Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Disco.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Trojan-PSW.MSIL.Agensla.acxe HEUR:Trojan.Win32.Generic Trojan-PSW.MSIL.Agensla.sb Trojan-PSW.MSIL.Agensla.g
Verdict:
Malicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Binary is likely a compiled AutoIt script file
Contains functionality to register a low level keyboard hook
Found API chain indicative of sandbox detection
Found malware configuration
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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
Switches to a custom stack to bypass stack traces
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Verdict:
Malicious
Threat:
Family.AGENTTESLA
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_001
agenttesla
Similar samples:
+ 1'058 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
Win.Dropper.Zeus-9996119-0
YARA:
n/a
Unpacked files
SH256 hash:
83a66ebda837bfa52232a03128d32dc773f827fcf20c5696e54a6077293b8a41
MD5 hash:
84d82639aa0891e1fdbcb3fdd3157496
SHA1 hash:
44aeaa360be25e06e67268d5c610d422c390dd03
Detections:
AutoIT_Compiled
SH256 hash:
d700a048570fb6af3ed5a9a0bb61584f8703d0c14bbff610a3ed5e1f6f545a74
MD5 hash:
10d4904b68a5f66fac3d12047b615a2b
SHA1 hash:
254a58d19d92907de51fad4d222026af093b6762
Detections:
win_samsam_auto
SUSP_OBF_NET_Reactor_Native_Stub_Jan24
MAL_Malware_Imphash_Mar23_1
MetaStealer_NET_Reactor_packer
MALWARE_Win_RedLine
SH256 hash:
f6061f7e1c77b18f3d435715aae9c7c098508e5ad25fbac70d291b67e97c8e17
MD5 hash:
3fae7a8c2e990f58dce9eaf8417da5ea
SHA1 hash:
2d0511dd6af32a3ed04b1cba70dfc783eef7d5bb
Detections:
AgentTesla
SUSP_OBF_NET_Reactor_Indicators_Jan24
Agenttesla_type2
INDICATOR_EXE_Packed_GEN01
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
SH256 hash:
a71197213740afd8caef3f18a48d4bb59eda519771d85bd0318ca88210214e8b
MD5 hash:
c53dec190de5384f3f7d65bde71ef573
SHA1 hash:
f433751e7876c66b6bfd3bcb338cf1c25baaa29d
Detections:
AgentTesla
SUSP_OBF_NET_Reactor_Indicators_Jan24
RedLine_Campaign_June2021
Agenttesla_type2
INDICATOR_EXE_Packed_GEN01
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Malware family:
RedNet
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: | AutoIT_Compiled |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious. |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | MALWARE_Win_RedLine |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RedLine infostealer |
| Rule name: | MAL_Malware_Imphash_Mar23_1 |
|---|---|
| Author: | Arnim Rupp |
| Description: | Detects malware by known bad imphash or rich_pe_header_hash |
| Reference: | https://yaraify.abuse.ch/statistics/ |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | TH_Generic_MassHunt_Win_Malware_2025_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Generic Windows malware mass-hunt rule - 2025 |
| Reference: | https://cyfare.net/ |
| Rule name: | win_samsam_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
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