MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8593f4d7560ce53b3ccc9a84da05bb783ca5908fdb5a537bb274bef749ae282. 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: b8593f4d7560ce53b3ccc9a84da05bb783ca5908fdb5a537bb274bef749ae282
SHA3-384 hash: f7b91dc95fd729afa681d2f4ace9259ac2c1ba246068219386bf5987f84e9f498e3c7673a2154c038b3ea792dfeff263
SHA1 hash: 87650a2f976d6c16af6197ce76d247ca7e1e7974
MD5 hash: 2b95eb22ad9d6906716ea09e3262054e
humanhash: bulldog-carbon-seven-queen
File name:Quotation_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:763'392 bytes
First seen:2020-07-29 07:45:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e8ef47e85c79ee608837cc415c05c43b (15 x AgentTesla, 5 x NanoCore, 5 x Loki)
ssdeep 12288:DRXtpnVH9Az44BnvOCDhzcl0UdKndi2bnXrRIkoFiPOC+MxYlj64z:Dfd8z4byilBdlGXFIkoKOllm+
Threatray 11'699 similar samples on MalwareBazaar
TLSH A7F4AF62B2E14837D1A71E3C9C1B5764AB3ABE00EE3859452FFC1C8C5F396913866397
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vps12232936.123-vps.co.uk
Sending IP: 212.67.215.65
From: CAO DUONG CO LTD <info.caoduong@caoduong.com>
Subject: REQUEST FOR QUOTATION!!
Attachment: Quotation_pdf.gz (contains "Quotation_pdf.exe")

AgentTesla SMTP exfil server:
mail.flood-protection.org:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34566/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.Trojan.PWS.Stealer.19347.10936.15784.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching the process to change network settings
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/401947
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
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: Capture Wi-Fi password
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8593f4d7560ce53b3ccc9a84da05bb783ca5908fdb5a537bb274bef749ae282/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 07:47:05 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbmt6tlvmdhfhm6mzgue3ic3w6b4uwii7w22kn53e5f665e24kba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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AgentTesla
+ 11'689 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx spyware persistence keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200729-er8ec6znqs/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Modifies service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
UPX packed file
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/b8593f4d7560ce53b3ccc9a84da05bb783ca5908fdb5a537bb274bef749ae282

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

gz 5f274be94113bf1f02f3884c23730d2afd5ae920713fc0a26b031f477de73914

AgentTesla

Executable exe b8593f4d7560ce53b3ccc9a84da05bb783ca5908fdb5a537bb274bef749ae282

(this sample)

  
Dropped by
MD5 25c0ae1647f97a5dfb4cb70bd933c3de
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5f274be94113bf1f02f3884c23730d2afd5ae920713fc0a26b031f477de73914
Cape
Cape
https://www.capesandbox.com/analysis/34566/

Comments