MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8739e291b6da32f9b3ea6d20799a997a53b7d47621d38412294cfaa2e0d8b7c. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8739e291b6da32f9b3ea6d20799a997a53b7d47621d38412294cfaa2e0d8b7c
SHA3-384 hash: c4e82952cf4ffc2aa6adb38ff3496880dad35008d09b8a8ab483d21ef94db61b00a588bed253b05b6d851d1fc4495f6e
SHA1 hash: 09d6a6997f31feeba485d31a55840701fe99024d
MD5 hash: 16b602ecf475955012903898e1bdeadd
humanhash: undress-kilo-ohio-april
File name:Proforma Invoice.xlsx
Download: download sample
Signature AgentTesla
Create hunting rule
File size:645'120 bytes
First seen:2020-08-13 11:11:49 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 12288:MvN8Xrs13ZyFKl7l4bjwgQqn30LPNvqTpsNPxPAX+vHQGZtn2t/UCQw:M1crsd4/QyeNPFfQO2t/VQ
TLSH 06D4230AB1F5EE6BFDC703F6161192261B1FED048321E9B54956FA265138FF802E60F9
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 xlsx


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: server2.futuria.es
Sending IP: 188.164.196.24
From: Finance - Tecnoponti <claradel.prete@tecnoponti.it>
Subject: R: FW: Deposit Payment
Attachment: Proforma Invoice.xlsx

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
58
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
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching a service
Creating a file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Forced shutdown of a system process
Stealing user critical data
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/425967
Signature
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Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265600 Sample: Proforma Invoice.xlsx Startdate: 14/08/2020 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 168 50 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/d8739e291b6da32f9b3ea6d20799a997a53b7d47621d38412294cfaa2e0d8b7c/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 11:13:05 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3bzz4ki3nwrs7gz6u3japgnjs6stw7khmiotqqjcsth2ulqnrn6a._file
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200813-w73xy6kq3a/
Behaviour
Launches Equation Editor
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
DriveBy Activity
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/d8739e291b6da32f9b3ea6d20799a997a53b7d47621d38412294cfaa2e0d8b7c

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 d8739e291b6da32f9b3ea6d20799a997a53b7d47621d38412294cfaa2e0d8b7c

(this sample)

AgentTesla

Executable exe 4540c3754b0563ef0392b1b0cacab2865d1638abb6dbe461ce3c7a912cfe3dad

  
URLhaus
https://urlhaus.abuse.ch/url/431806/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 4540c3754b0563ef0392b1b0cacab2865d1638abb6dbe461ce3c7a912cfe3dad
  
Dropping
MD5 ad630341a62ddfd67a8aed1638270825

Comments