MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aec248bb2bd00454075223d34318765b2f98bafcb17604c72d9934379864f7b. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1aec248bb2bd00454075223d34318765b2f98bafcb17604c72d9934379864f7b
SHA3-384 hash: a1a66a24be6352178115e5ef15f488a27ebc61822830ca9928239d8e8576d40c523aad744266d57239aecb1870b1cb80
SHA1 hash: 892c3d776c3c1b3e05db51b7fc1453132dfacf2b
MD5 hash: e92f8aacae55cdcc2e4e80cf1ccaf8b9
humanhash: beer-sodium-november-pizza
File name:W04-BOD01 MOL.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:514'872 bytes
First seen:2020-08-16 18:09:43 UTC
Last seen:2020-08-16 18:39:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:AS1QbvgWK5WpL/S9Yqtzvp5ghVJtVz9xtnGB:5QbvxaWNetzEhTtmB
Threatray 10'652 similar samples on MalwareBazaar
TLSH 92B46C3E30865D19D826557474A8A9C3BA317A863ED58B3E62CF93CC6F02D6B7F6044C
Reporter abuse_ch
Tags:AgentTesla exe Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic313-20.consmr.mail.gq1.yahoo.com
Sending IP: 98.137.65.83
From: Ivaylo Iliev <anrievo09@yahoo.com>
Reply-To: Ivaylo Iliev <anrievo09@yahoo.com>
Subject: RE: CNC W04- mold quote
Attachment: W04-BOD01 MOL.B.uue (contains "W04-BOD01 MOL.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46548/
Detection(s):
SecuriteInfo.com.ArtemisE92F8AACAE55.31739.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/432352
Signature
Creates an autostart registry key pointing to binary in C:\Windows
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Add file from suspicious location to autostart registry
Tries to detect virtualization through RDTSC time measurements
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268109 Sample: W04-BOD01 MOL.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 72 34 Yara detected AgentTesla 2->34 36 Sigma detected: Add file from suspicious location to autostart registry 2->36 38 Tries to detect virtualization through RDTSC time measurements 2->38 7 pcalua.exe 1 2->7         started        9 W04-BOD01 MOL.exe 8 2->9         started        12 pcalua.exe 1 1 2->12         started        process3 file4 14 heh.exe 3 7->14         started        28 C:\Users\user\AppData\Roaming\...\heh.exe, PE32 9->28 dropped 30 C:\Users\user\...\heh.exe:Zone.Identifier, ASCII 9->30 dropped 32 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 9->32 dropped 17 cmd.exe 1 9->17         started        19 heh.exe 2 9->19         started        process5 signatures6 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->44 46 Tries to detect virtualization through RDTSC time measurements 14->46 21 reg.exe 1 1 17->21         started        24 conhost.exe 17->24         started        26 heh.exe 2 19->26         started        process7 signatures8 40 Creates an autostart registry key pointing to binary in C:\Windows 21->40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1aec248bb2bd00454075223d34318765b2f98bafcb17604c72d9934379864f7b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-16 15:28:02 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dlwcjc5sxuaekqdvei6timmhmwzptc5pzmlwatds3gjug6mgj55q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
4e4023f2d5ba6bf0595fb6dcac7c04564239d0ff25408a1aa9c36e1d08ae57e5
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6c77b454db79850455c97fece27e8b924c7b41ffcd43a7cc0941b26d2fb6454b
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84e0b5e6daeb11cdca531a22315506ee74a14bd6b0ae9c563fde694aa955867a
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882e76f42c2b167e6bbef37b58c44b9a7234e7c154d9b30b7da9071611f3bc0b
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9018fc4955a89ca4996540770fb9d7ed349810b9e4f6724ade1be9c6288015ed
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c282cc8f22db07f2bc462448e339d3cf19fe5330e031a956d8c892c4b78b10ff
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eddcda48d1058487f653995ae77469d407cd02a7b2bf9d6059a61ddeeaa83f70
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f6dc39be69fcb6613defba0c9d8428d71c2a02b118383d4a49a66c6139e690fd
AgentTesla
+ 10'642 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
agilenet keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200816-mewsp9jpps/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/1aec248bb2bd00454075223d34318765b2f98bafcb17604c72d9934379864f7b

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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.

Malspam

AgentTesla

zip e01132dcef551b97f1701179ea33be8b71db9fd18c7629f0d87765005d524c39

AgentTesla

Executable exe 1aec248bb2bd00454075223d34318765b2f98bafcb17604c72d9934379864f7b

(this sample)

  
Dropped by
MD5 74ade94fe47e91109757a55cd235c1a4
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e01132dcef551b97f1701179ea33be8b71db9fd18c7629f0d87765005d524c39
Cape
Cape
https://www.capesandbox.com/analysis/46548/

Comments