MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 340fc31e01880f198587c5b78805b29d7ae1e66bdb533315d2cadd614f38fbe3. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 340fc31e01880f198587c5b78805b29d7ae1e66bdb533315d2cadd614f38fbe3
SHA3-384 hash: 93a0305a1ab41f93f5bf3e285ddd0382402006726a15cc7b1346c90e5d7f4d13e600a3c546d5db64d32c26ae7e5888ed
SHA1 hash: c9d528b4d5136e75489609a163ed7cf1796c1680
MD5 hash: 996ce4f7b42804c635894fe8c994b9b1
humanhash: lima-spring-red-snake
File name:2695015.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:617'472 bytes
First seen:2020-08-12 06:46:21 UTC
Last seen:2020-08-12 07:58:30 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 6144:aBz+PdomEF2RKwxyP4Z/5W9zcXXdWUp/uY+pF:a2mmEFpwxygZk9Q9WUpSpF
Threatray 10'910 similar samples on MalwareBazaar
TLSH DCD43B25DB810085EC19B1B38494FBB297772DF12A1F4D0D50F6320A49724DAEBB9FB6
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: "Agricola Livon" <bogachdds@gmail.com>
Subject: FYI. PAGAMENTO DELLE FATTURE
Attachment: PAYMENT_288100903.img (contains "2695015.scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43957/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Pretoria.1.26171.24648.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/421512
Signature
Allocates memory in foreign processes
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
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 263207 Sample: 2695015.scr Startdate: 12/08/2020 Architecture: WINDOWS Score: 76 35 Yara detected AgentTesla 2->35 7 2695015.exe 7 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 1 2->13         started        process3 file4 29 C:\Users\user\bsokt.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->31 dropped 33 C:\Users\user\bsokt.exe:Zone.Identifier, ASCII 7->33 dropped 43 Drops PE files to the user root directory 7->43 15 bsokt.exe 2 7->15         started        18 cmd.exe 1 7->18         started        20 bsokt.exe 3 11->20         started        signatures5 process6 signatures7 45 Writes to foreign memory regions 15->45 47 Allocates memory in foreign processes 15->47 49 Injects a PE file into a foreign processes 15->49 22 RegAsm.exe 2 15->22         started        25 reg.exe 1 1 18->25         started        27 conhost.exe 18->27         started        process8 signatures9 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->39 41 Creates an autostart registry key pointing to binary in C:\Windows 25->41
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/340fc31e01880f198587c5b78805b29d7ae1e66bdb533315d2cadd614f38fbe3/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 05:32:51 UTC
AV detection:
32 of 48 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gqh4ghqbrahrtbmhyw3yqbnstv5odztl3njtgfoszlowctzy7prq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'900 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200812-w86hq7qnf2/
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
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/340fc31e01880f198587c5b78805b29d7ae1e66bdb533315d2cadd614f38fbe3

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

img 531153cb6a4270c92bad4222dc77d17242097acc334ff8bf0d32fca303b39eb6

AgentTesla

Executable exe 340fc31e01880f198587c5b78805b29d7ae1e66bdb533315d2cadd614f38fbe3

(this sample)

  
Dropped by
MD5 acf7af57ecffa21e2e2021f0401e1103
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/43957/
  
Dropped by
SHA256 531153cb6a4270c92bad4222dc77d17242097acc334ff8bf0d32fca303b39eb6

Comments