MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 159921268e1634b4695fdeb118786e1d8b3607e775ec42913beeae5f497d0011. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 159921268e1634b4695fdeb118786e1d8b3607e775ec42913beeae5f497d0011
SHA3-384 hash: 2f393097bfa4e5282107733feb0d2373a0054153466ef2b25e09a5654bfbd49310f4b1fe03120e662e90496cfae2659f
SHA1 hash: cab4509c485b3429f9ecdbdc0b7b64e5beeeb942
MD5 hash: a10ed1cc48890e6524eb3e1726cf62fa
humanhash: moon-florida-blossom-alabama
File name:SecuriteInfo.com.CAP_HookExKeylogger.18935.13118
Download: download sample
Signature AgentTesla
File size:809'472 bytes
First seen:2020-09-03 17:52:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:eE9q5oH18gu8xi+WsLjxcp1kha8yOyYy49b:eEfH1A8xi+WsLqgyqy
Threatray 54 similar samples on MalwareBazaar
TLSH F405D63A3A8A6409E83F057504A859D23731B68B3F41CB1FF9CA435C9E02E8F7F55696
Reporter SecuriteInfoCom
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
1
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.evad
Score:
78 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 281776 Sample: SecuriteInfo.com.CAP_HookEx... Startdate: 03/09/2020 Architecture: WINDOWS Score: 78 46 Antivirus / Scanner detection for submitted sample 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected AgentTesla 2->50 52 .NET source code contains very large array initializations 2->52 7 SecuriteInfo.com.CAP_HookExKeylogger.18935.exe 7 2->7         started        12 pcalua.exe 1 1 2->12         started        14 pcalua.exe 1 2->14         started        process3 dnsIp4 36 192.168.2.1 unknown unknown 7->36 28 C:\Users\user\osgh.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->30 dropped 32 C:\Users\user\osgh.exe:Zone.Identifier, ASCII 7->32 dropped 34 SecuriteInfo.com.C...ogger.18935.exe.log, ASCII 7->34 dropped 56 Drops PE files to the user root directory 7->56 16 osgh.exe 3 7->16         started        19 cmd.exe 1 7->19         started        file5 signatures6 process7 signatures8 38 Antivirus detection for dropped file 16->38 40 Multi AV Scanner detection for dropped file 16->40 42 Writes to foreign memory regions 16->42 44 2 other signatures 16->44 21 InstallUtil.exe 2 16->21         started        23 reg.exe 1 1 19->23         started        26 conhost.exe 19->26         started        process9 signatures10 54 Creates an autostart registry key pointing to binary in C:\Windows 23->54
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-09-03 02:49:15 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Behaviour
AgentTesla Payload
Agenttesla family
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

Web download

AgentTesla

Executable exe 159921268e1634b4695fdeb118786e1d8b3607e775ec42913beeae5f497d0011

(this sample)

  
Delivery method
Distributed via web download

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