MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf394556789d98e7d44735c13bf67ddbe69f0d43505bcb67531e7a5acd98a49f. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
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SHA256 hash: cf394556789d98e7d44735c13bf67ddbe69f0d43505bcb67531e7a5acd98a49f
SHA3-384 hash: ed323b1ae4e68ec3c51d79f18c34b75e14f118c590f835da7bf8a6c513754b09893ce555aa56ea48584e24cd1720cdc2
SHA1 hash: 5b7de8475ad7af8c648920de889577854bfa3b40
MD5 hash: 4d193c2b1a95b24c57a6682f6bfc44c5
humanhash: magazine-aspen-mockingbird-alaska
File name:inquiry.xlsx
Download: download sample
Signature AgentTesla
Create hunting rule
File size:741'888 bytes
First seen:2020-08-11 11:23:31 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 12288:mRIptXdaCSWhZGM2uR/tAfCk8jlZJOq1BzdzMSVr6OIO1Ke0ar69SS0u:mRKtNarTyAfCjj/JhZMSfIv86AS0
TLSH EBF42339FAC1AF69C73B42F2590A5867528FFCB05E66D607D4F774687A303B01AC44A2
Reporter abuse_ch
Tags:AgentTesla xlsx


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: zeller-modellbau.com
Sending IP: 45.153.240.110
From: office@zeller-modellbau.com
Subject: RE: Re: RV: new inquiry
Attachment: inquiry.xlsx

AgentTesla payload URL:
http://sessionoftherainfloodingeverywherehighno.duckdns.org/bgs/vbc.exe

AgentTesla SMTP exfil server:
mail.reignads.com:587

AgentTesla SMTP exfil email address:
boneventure@reignads.com

Intelligence

File Origin
# of uploads :
1
# of downloads :
64
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/418593
Signature
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Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 261590 Sample: inquiry.xlsx Startdate: 11/08/2020 Architecture: WINDOWS Score: 48 12 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->12 6 EXCEL.EXE 160 48 2->6         started        8 mspaint.exe 27 2 2->8         started        process3 process4 10 splwow64.exe 6->10         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf394556789d98e7d44735c13bf67ddbe69f0d43505bcb67531e7a5acd98a49f/
Threat name:
Document-Office.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 11:25:06 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z44ukvtytwmopvchgxatx5t53ptj6dkdkbn4wz2tdz5fvtmyuspq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200811-pqgrpj8f6n/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Launches Equation Editor
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cf394556789d98e7d44735c13bf67ddbe69f0d43505bcb67531e7a5acd98a49f

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

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

Malspam

AgentTesla

Excel file xlsx cf394556789d98e7d44735c13bf67ddbe69f0d43505bcb67531e7a5acd98a49f

(this sample)

AgentTesla

Executable exe 5daec184f65eb553c31e17f10af8a2143dd65c52b61a95ca364b1c725f5ab84a

  
URLhaus
https://urlhaus.abuse.ch/url/429207/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 5daec184f65eb553c31e17f10af8a2143dd65c52b61a95ca364b1c725f5ab84a
  
Dropping
MD5 0c1904efda89ead57dc058f5b47db8ea

Comments