MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d. 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: 6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d
SHA3-384 hash: b68f4f646c5b5a26eb1df9d08a8e41fa2b79660a21a5b726ecd1c55fa5021067e3acc787ca35b4781aa3248ae26f892a
SHA1 hash: 2996fc9fd8b2b09c56b26cfa675acfabe8ae9139
MD5 hash: 0de607d7e44900630a03902716cde06d
humanhash: berlin-saturn-winter-virginia
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:465'920 bytes
First seen:2020-08-05 09:32:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:ZLNyEdAD6YP/Pry9J1RDCb3qlu4u2r5MJfW97xxZxrcHWjLlhzDZkP4Ik72LlpBe:hNyEdv/lup2rXXcHUJpDZe4IkATfYZ
Threatray 10'626 similar samples on MalwareBazaar
TLSH 90A4F01C37A0A14DF57A1E3F9D710183DD62F84FCE22D64B6AB12569007E6ACBCA1F61
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: emirates.net.ae
Sending IP: 37.49.230.200
From: Arun James <houbylaw@emirates.net.ae>
Subject: Purchase Order
Attachment: Purchase Order.Z (contains "Purchase Order.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39375/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.14193.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410881
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257767 Sample: Purchase Order.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Yara detected AgentTesla 2->37 39 Yara detected AntiVM_3 2->39 41 7 other signatures 2->41 6 YYtJku.exe 1 2->6         started        9 Purchase Order.exe 1 2->9         started        12 YYtJku.exe 2->12         started        process3 file4 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 45 Machine Learning detection for dropped file 6->45 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->47 14 YYtJku.exe 2 6->14         started        27 C:\Users\user\...\Purchase Order.exe.log, ASCII 9->27 dropped 49 Injects a PE file into a foreign processes 9->49 18 Purchase Order.exe 2 5 9->18         started        21 YYtJku.exe 2 12->21         started        signatures5 process6 dnsIp7 29 mail.threewaystoharems.com 14->29 51 Tries to harvest and steal ftp login credentials 14->51 53 Tries to harvest and steal browser information (history, passwords, etc) 14->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->55 31 threewaystoharems.com 192.254.236.251, 49736, 49738, 587 UNIFIEDLAYER-AS-1US United States 18->31 33 mail.threewaystoharems.com 18->33 23 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 18->23 dropped 25 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 18->25 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->57 59 Moves itself to temp directory 18->59 61 Tries to steal Mail credentials (via file access) 18->61 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d/
Threat name:
ByteCode-MSIL.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 08:05:47 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mvt3vrct7k7x4acj3ca5xdxamvq5plxceyvydaoi5b4iupqytgoq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'616 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200805-pygeyzkras/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d

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

z 6d9edc2463192ab41345fd48b44d3ce69c47a2b70097c8e31a153190a18b2b1d

AgentTesla

Executable exe 6567bac453fabf7e0049d881db8ee06561d7aee2262b8181c8e8788a3e18999d

(this sample)

  
Dropped by
MD5 6b0708c4751a9d8592aa97796d706523
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39375/
  
Dropped by
SHA256 6d9edc2463192ab41345fd48b44d3ce69c47a2b70097c8e31a153190a18b2b1d

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