MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77950def119777d1a1a47117910bbe7f1579bd91b9295f46f0ce31bebaa54104. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77950def119777d1a1a47117910bbe7f1579bd91b9295f46f0ce31bebaa54104
SHA3-384 hash: 2fef8172db15b0f06c5dd6aa80ffaa9d5b42d9c5f7b5a4616c949ccc73e7c10a6332b5977d1f7bd4af33853d525c80bd
SHA1 hash: 6a6b5aa0d5a888ec688e3e8e90b0b65648d3ef35
MD5 hash: 61a9aea1a4ba70c335440608c20e9111
humanhash: cardinal-east-sixteen-venus
File name:BV10013 (Rev ).scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:847'872 bytes
First seen:2020-07-20 09:04:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'455 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:TOQeTpk1q9I6/kEcQn/Lx5RIEoT2wrQOTnLdSCGDyaod+ik4g8y3SoDq:TOQepkWoKuQOTnMPW2rEloDq
Threatray 10'818 similar samples on MalwareBazaar
TLSH F105E0C966A04540CAED6FB99E62CAB44735BC01F4F2930F5BC0BC9B297B393D458762
Reporter abuse_ch
Tags:AgentTesla scr Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic303-23.consmr.mail.gq1.yahoo.com
Sending IP: 98.137.64.204
From: Micheal Gauger <r_palari@yahoo.com>
Reply-To: onnybekee@protonmail.com
Subject: Quote#CON-071720-EB
Attachment: lists.img (contains "BV10013 (Rev ).scr")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/28850/
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/391162
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 247939 Sample: BV10013 (Rev ).scr Startdate: 20/07/2020 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Multi AV Scanner detection for dropped file 2->32 34 Sigma detected: Scheduled temp file as task from temp location 2->34 36 9 other signatures 2->36 7 BV10013 (Rev ).exe 5 2->7         started        process3 file4 20 C:\Users\user\AppData\...\ScBQRkTyJr.exe, PE32 7->20 dropped 22 C:\Users\...\ScBQRkTyJr.exe:Zone.Identifier, ASCII 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmp6898.tmp, XML 7->24 dropped 26 C:\Users\user\...\BV10013 (Rev ).exe.log, ASCII 7->26 dropped 10 MSBuild.exe 10 7->10         started        14 MSBuild.exe 7->14         started        16 schtasks.exe 1 7->16         started        process5 dnsIp6 28 smtp.gmail.com 172.253.120.108, 49737, 49738, 587 GOOGLEUS United States 10->28 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->38 40 Tries to steal Mail credentials (via file access) 10->40 42 Tries to harvest and steal ftp login credentials 10->42 50 2 other signatures 10->50 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->46 48 Contains functionality to register a low level keyboard hook 14->48 18 conhost.exe 16->18         started        signatures7 process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77950def119777d1a1a47117910bbe7f1579bd91b9295f46f0ce31bebaa54104/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-20 01:37:27 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6kq33yrs535dineoelzcc56p4kxtpmrxeuv6rxqzyy35ovfieca._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'808 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
evasion keylogger trojan stealer spyware family:agenttesla
Link:
https://tria.ge/reports/200720-tkya6kpn4j/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Maps connected drives based on registry
Reads user/profile data of local email clients
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/77950def119777d1a1a47117910bbe7f1579bd91b9295f46f0ce31bebaa54104

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

HawkEye

img 58635d9c7ac1454eaadb9254bf754714917811258020b6fa8a287a554ef203d5

AgentTesla

Executable exe 77950def119777d1a1a47117910bbe7f1579bd91b9295f46f0ce31bebaa54104

(this sample)

  
Dropped by
MD5 21a942b9a9486faea5ba28ed3a27c2d8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/28850/
  
Dropped by
SHA256 58635d9c7ac1454eaadb9254bf754714917811258020b6fa8a287a554ef203d5

Comments