MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed. 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: 22


Intelligence 22 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed
SHA3-384 hash: 2011acc06f96d66f482f9805aae45f0bc06d0ca136f72c6f77dd1268c94c42ae7ed5ca6a22724e3aab424bb24ffeb02e
SHA1 hash: 0f4846dd9fdb8c54319f3bcddf5c99c35c8dadb1
MD5 hash: 2ac4079bb6288b5e32394ea50648b904
humanhash: early-four-stream-summer
File name:WKB25050933.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:704'008 bytes
First seen:2025-10-16 08:08:19 UTC
Last seen:2025-10-17 06:04:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'598 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:+pGSDUSb9xrlZiXm2H0EaLCgnjDSl+IrdfV3TVg89RNXhQqbdvnJ5X6KkR:L8USb9bZYH0TNiljrhVf9GqbFX6J
Threatray 275 similar samples on MalwareBazaar
TLSH T1C8E412991605E206CDA56BB51674F2B42B7D7DCAF612C3179FEC7EEB78A9B004C08183
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 cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
145
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
_871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed.exe
Verdict:
Malicious activity
Analysis date:
2025-10-16 08:14:29 UTC
Tags:
stealer ultravnc rmm-tool auto-sch-xml agenttesla
Link:
https://app.any.run/tasks/0c500cee-e56c-44ff-a45e-6f9797512a79

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33035/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f0a80a72d478f905984587
Tags:
krypt spawn msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching a service
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/68f0a818057c46a471cee9d5/reports/cb35bbc6-f4f2-4740-8385-637a755a4d16/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-14T16:26:00Z UTC
Last seen:
2025-10-18T04:05:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan-Spy.MSIL.Agent.sb Trojan-PSW.Agensla.TCP.C&C PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Disco.sb VHO:Trojan-Spy.MSIL.Quasar.gen Trojan.MSIL.Taskun.sb HEUR:Trojan-Spy.MSIL.Noon.gen HEUR:Trojan.MSIL.Taskun.sb Trojan-Spy.Agent.SMTP.C&C Trojan-PSW.MSIL.Agensla.d Trojan-PSW.MSIL.Agensla.sb Trojan-PSW.MSIL.Agensla.g Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb
Link:
https://opentip.kaspersky.com/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed/results?tab=lookup
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/df119101-00c2-4871-811d-9d9a9ca5dcb4
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1796357
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1796357 Sample: WKB25050933.exe Startdate: 16/10/2025 Architecture: WINDOWS Score: 100 50 mail.am-pek.com 2->50 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 60 7 other signatures 2->60 8 WKB25050933.exe 7 2->8         started        12 jspXzdeCu.exe 5 2->12         started        signatures3 process4 file5 42 C:\Users\user\AppData\Roaming\jspXzdeCu.exe, PE32 8->42 dropped 44 C:\Users\...\jspXzdeCu.exe:Zone.Identifier, ASCII 8->44 dropped 46 C:\Users\user\AppData\Local\...\tmp392E.tmp, XML 8->46 dropped 48 C:\Users\user\AppData\...\WKB25050933.exe.log, ASCII 8->48 dropped 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 8->64 66 Adds a directory exclusion to Windows Defender 8->66 14 WKB25050933.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        30 2 other processes 8->30 68 Multi AV Scanner detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 22 jspXzdeCu.exe 12->22         started        24 schtasks.exe 12->24         started        26 jspXzdeCu.exe 12->26         started        28 jspXzdeCu.exe 12->28         started        signatures6 process7 dnsIp8 52 mail.am-pek.com 5.252.153.82, 25 WORLDSTREAMNL Russian Federation 14->52 72 Loading BitLocker PowerShell Module 18->72 32 conhost.exe 18->32         started        34 WmiPrvSE.exe 18->34         started        36 conhost.exe 20->36         started        74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->74 76 Tries to steal Mail credentials (via file / registry access) 22->76 78 Tries to harvest and steal ftp login credentials 22->78 80 Tries to harvest and steal browser information (history, passwords, etc) 22->80 38 conhost.exe 24->38         started        40 conhost.exe 30->40         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.27 Win 32 Exe x86
Link:
https://app.malva.re/file/2ac4079bb6288b5e32394ea50648b904
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed/
Verdict:
Malicious
Threat:
Family.AGENTTESLA
Link:
https://tip.neiki.dev/file/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-10-14 23:31:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q4oc3zssnbttwxk54nusuqejev4jqrv7lcmi5auy5kemxwad2hwq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
57365350234375cd60d16cba2aefbff8d0dc048ae37669fc40bb9c42cab64037
AgentTesla
868b76fe619c0fe4a0e7040c2657149e58303fafc61d529fe884f233e188b549
AgentTesla
b6435d167628a91820c8440d2fbf10fe6f823e64c33a597eca56021322c47bb4
AgentTesla
ce8cdbdac7f2dc6b5b8068a910e3309c97bf897904753447ed842d4fef60cdb6
AgentTesla
+ 265 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/251016-j13tysen7s/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
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
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0e35aacf-1bc2-494f-b009-c93969fbb725
Unpacked files
SH256 hash:
871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed
MD5 hash:
2ac4079bb6288b5e32394ea50648b904
SHA1 hash:
0f4846dd9fdb8c54319f3bcddf5c99c35c8dadb1
Link:
https://www.unpac.me/results/493eaace-694f-47ff-8c92-789e5c5ca741/
SH256 hash:
e6a8d52561b96729aa2a297a95bc9e8d12802aca1ddaf83025f37fa8f85b767a
MD5 hash:
dcb3f0d3f7aa0fc5d8a6209f7dd96ace
SHA1 hash:
2ab785ff98c70c547fcc6934a9a42ad8669fd9ae
Detections:
win_agent_tesla_g2
Create hunting rule
AgentTesla
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/493eaace-694f-47ff-8c92-789e5c5ca741/
Parent samples :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 hash:
31f88ade24061eaa60c2c0d94dd8e0ffde29c8d7f9249e326883751abc26e768
MD5 hash:
b5b7011c1925ba5e85e17c777bc9316b
SHA1 hash:
98dce2d66f89f9163b6f791dae965ac229941cb6
Link:
https://www.unpac.me/results/493eaace-694f-47ff-8c92-789e5c5ca741/
SH256 hash:
f9b76bc6a78d912907e511f4140ec802b6cb08eb72e3047815c89e8263878261
MD5 hash:
e58094818bf32d663f4ea8c8666bfd04
SHA1 hash:
9d69380d26300e03344af32446fdf35de4a22336
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/493eaace-694f-47ff-8c92-789e5c5ca741/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/871c2de65268/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed

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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

tar be966de0555553e7e3e46e68d456f750834db719f3618ff0f1dab7c94d275adc

AgentTesla

Executable exe 871c2de65268673b5d5de3692a408925789846bf58988e8298ea88cbd803d1ed

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 be966de0555553e7e3e46e68d456f750834db719f3618ff0f1dab7c94d275adc
Cape
Cape
https://www.capesandbox.com/analysis/33035/
  
Dropped by
MD5 ed14b17ecc2a4fa750dbca6828ccfa43

Comments