MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56db6f69bbc36e0758d7e5e1cce28ddc57f3eec355a36c1b9170d509780a4c2e. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 56db6f69bbc36e0758d7e5e1cce28ddc57f3eec355a36c1b9170d509780a4c2e
SHA3-384 hash: 6896607894a7c6213c412aff976d64bbf85f3ff1bfed336393ea933f99af64094525db8237e7bc79966f454feea58da1
SHA1 hash: 637ea6d55398f30f13d3c2c7ab2d60dc0d8d6b8d
MD5 hash: 627579f1dcbc328a55c2fce2aee91a73
humanhash: nevada-white-arizona-crazy
File name:1nkjH2Sua25O2db.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:481'792 bytes
First seen:2020-07-16 19:19:02 UTC
Last seen:2020-07-16 20:12:42 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 12288:YvY2k4zUEBRf8Y0dWvfRNBNaaxwjPZbSTn:YJBREY0SR9RQ
Threatray 10'606 similar samples on MalwareBazaar
TLSH 26A4F1CC2E64AA11DE9C4EB80CA2C53012706E66F8F5F24837C5FF8F3536215FA46A25
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: webmail.cyber.net.pk
Sending IP: 203.101.175.37
From: powertr@cyber.net.pk
Subject: Proforma Invoice
Attachment: Invoice0978.img (contains "1nkjH2Sua25O2db.exe")

AgentTesla FTP exfil server:
triathlon-batteries-uk.com:21

Intelligence

File Origin
# of uploads :
2
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27057/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.21884.27055.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/388854
Signature
Contains functionality to register a low level keyboard hook
Installs a global keyboard hook
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246612 Sample: 1nkjH2Sua25O2db.exe Startdate: 18/07/2020 Architecture: WINDOWS Score: 100 27 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 3 other signatures 2->33 7 1nkjH2Sua25O2db.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\...\pQeazPavHGaD.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpD3C1.tmp, XML 7->21 dropped 23 C:\Users\user\...\1nkjH2Sua25O2db.exe.log, ASCII 7->23 dropped 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->35 37 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->37 39 Contains functionality to register a low level keyboard hook 7->39 11 1nkjH2Sua25O2db.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 triathlon-batteries-uk.com 185.36.81.58, 21, 49721, 49722 TELE-ASTeleAsiaLimitedHK Lithuania 11->25 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->41 43 Tries to steal Mail credentials (via file access) 11->43 45 Tries to harvest and steal ftp login credentials 11->45 47 2 other signatures 11->47 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/56db6f69bbc36e0758d7e5e1cce28ddc57f3eec355a36c1b9170d509780a4c2e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 17:45:04 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k3nw62n3ynxaowgx4xq4zyun3rl7h3wdkwrwyg4rodkqs6akjqxa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'596 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200716-lkbrl4bga6/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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 3d1d3c576e778ffa4f35de33693c32e6802f2a362ec953efaa2ed6c02c7052e5

AgentTesla

Executable exe 56db6f69bbc36e0758d7e5e1cce28ddc57f3eec355a36c1b9170d509780a4c2e

(this sample)

  
Dropped by
MD5 a6e823a5b373c89d5b5a0dc239b56bd9
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 3d1d3c576e778ffa4f35de33693c32e6802f2a362ec953efaa2ed6c02c7052e5
Cape
Cape
https://www.capesandbox.com/analysis/27057/

Comments