MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8871229988e43c8dfc54c95e849d369ec7ddc06831f3e6f4f5919a48096f7a2. 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: a8871229988e43c8dfc54c95e849d369ec7ddc06831f3e6f4f5919a48096f7a2
SHA3-384 hash: 8d88eb1111d26efaf9c72e999a0b1dc38aa66a238997f7e541aa5d358292d9f8f7ee5eeb4e5a6fe59f8cfae805afb068
SHA1 hash: 64b147cf2daf71d44ada3c0bf8e33bc600361e15
MD5 hash: 9cfbb513c022f914c1578bdd885f8b3d
humanhash: michigan-table-massachusetts-uranus
File name:SOA July 2020.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:585'728 bytes
First seen:2020-08-04 06:19:15 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 12288:vnsH8xWkdC2iNrLas0Yc5FjbyGUAKyhRAkyfXF5:vnscwkdC1xrPc5FjUFKCHf1
Threatray 11'221 similar samples on MalwareBazaar
TLSH 7AC4D02575A1D801C3AF5637CDCF85084BEDEC0235A2DF2BBD9E33994502BA79E069C9
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vps.qreyandcom.com
Sending IP: 45.95.169.97
From: Daisy Chiang (Ms.) <info@qreyandcom.com>
Subject: Fwd: July SOA 2020
Attachment: SOA July 2020.rar (contains "SOA July 2020.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38155/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408605
Signature
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8871229988e43c8dfc54c95e849d369ec7ddc06831f3e6f4f5919a48096f7a2/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 00:33:15 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcdrekmyrzb4rx6fjsk6qsotnhwh3xagqmpt432plem2jaew66ra._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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847082fe41577614b2b67a5ae938fbe824b1d142c81bb2b6036a4aeae8cccbb6
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8cfce52a39c18564723c94b57b95a4be0328bb75350e7c866ee5f674b94d26e0
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9ca497f6231180ec374837cf77e099a25e8c5cffa16c6599739c92ee03a94d34
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c03ae704dd35d3acd68ae4275d8007c3001a044c34c3d5dbc5299da6e1ca5a68
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d00a0836ea91458d1521ee4ebeaab0746a45b10901497a215b0bd0ebdf045e61
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d3e66e348953a589c9852de7f1b10516f6f7cd1287f33ea12cc6ff44a96e1419
AgentTesla
+ 11'211 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-pv7lbzk562/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Maps connected drives based on registry
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Checks BIOS information in registry
Reads user/profile data of local email clients
Looks for VMWare Tools registry key
AgentTesla Payload
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:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a8871229988e43c8dfc54c95e849d369ec7ddc06831f3e6f4f5919a48096f7a2

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

rar a54fd844852b71bade3c192c3b4149f71d0c38c76689316358c6ea757c4603a8

AgentTesla

Executable exe a8871229988e43c8dfc54c95e849d369ec7ddc06831f3e6f4f5919a48096f7a2

(this sample)

  
Dropped by
MD5 22e5dc9f276e785a00fbe1d77d57819e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a54fd844852b71bade3c192c3b4149f71d0c38c76689316358c6ea757c4603a8
Cape
Cape
https://www.capesandbox.com/analysis/38155/

Comments