MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 643e8c298a11b6a8391b4de2a9fa7639ed51ecd9a3977a1f8dd5299352abe11d. 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: 643e8c298a11b6a8391b4de2a9fa7639ed51ecd9a3977a1f8dd5299352abe11d
SHA3-384 hash: 1f418e3fb7578ec4471d73d4659b5654738660fd0417c01d68255680a5b61bc24f7c2d545c0ec6346714c8117b1e5cbe
SHA1 hash: 7417f1c6339de1de8b96c9a3ffb46ea3a9d9e487
MD5 hash: e23f38fb6260b37ea9ae8fc62d7ca865
humanhash: lion-monkey-table-uniform
File name:RFQ_20210000954460_PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:463'872 bytes
First seen:2020-07-16 19:20:06 UTC
Last seen:2020-07-17 14:56:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 6144:3b3J3AVk4zU0uXW17LWGimY5D6KIU1YJlBNuV0Nl5tPhvh0o1HnouLVLstwcIw6m:3b92k4zUNX6L65D6KQ3BNoOsIwwfo
Threatray 10'692 similar samples on MalwareBazaar
TLSH 77A4F1CC6DA4A522CAAC0FF90861EB3102342E42F8F6F6482BD5FD9F3535355E54A716
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: scsexpress.net
Sending IP: 209.58.149.66
From: sales <cs@scsexpress.net>
Subject: REQUEST FOR QUOTATION
Attachment: RFQ_20210000954460_PDF.gz (contains "RFQ_20210000954460_PDF.exe")

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

Intelligence

File Origin
# of uploads :
3
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27060/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.583.9033.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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/388860
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/643e8c298a11b6a8391b4de2a9fa7639ed51ecd9a3977a1f8dd5299352abe11d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 19:21:07 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mq7iykmkcg3kqoi3jxrkt6twhhwvd3gzuolxuh4n2uuzguvl4eoq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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dee1fa115a3e06310b958baca7bf709144f770de027ab3c615f6937b7544cd75
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ee180e2ce4c79e38d7c5c4f5e56fd22642d8fefa00cc543e9d85dbcb6944ae88
AgentTesla
+ 10'682 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/200716-7ndam5dhz6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
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

gz 172f7e1100d2e9e0f5994c887a683e87345d10cfdaeab3354b251982ffcf4bfc

AgentTesla

Executable exe 643e8c298a11b6a8391b4de2a9fa7639ed51ecd9a3977a1f8dd5299352abe11d

(this sample)

  
Dropped by
MD5 fa8186e46a0445fe6396609ed5fd1769
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 172f7e1100d2e9e0f5994c887a683e87345d10cfdaeab3354b251982ffcf4bfc
Cape
Cape
https://www.capesandbox.com/analysis/27060/

Comments