MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef99cb1072520b6ca4f08d4684f795a17e92dbca8ef03d3875da1ca2b33021c0. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef99cb1072520b6ca4f08d4684f795a17e92dbca8ef03d3875da1ca2b33021c0
SHA3-384 hash: 7931bd894bfde77fc0d5f1d9ecf82a6bc46af4bc0a3f719fc182079a8387f28c260f1c5097377ddb191c335aa7fa6265
SHA1 hash: b707b3ea53b95f49a4984ddaa1e5a52fdb8a3c59
MD5 hash: 0a4891f5a1c6f0fa2b5c18f00944984d
humanhash: vegan-table-massachusetts-kitten
File name:Due Invoice.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:688'640 bytes
First seen:2020-05-14 05:51:54 UTC
Last seen:2020-05-14 13:20:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1e4b6b1798d0c6be9e09f9012364ba1c (6 x AgentTesla, 3 x FormBook, 2 x Loki)
ssdeep 12288:PwFPGxJDbawx1fVc+yjaUP6tplMw797fCbhTqVHwS3SVKd5wAtd:PwNMJ6wBuTMlM8JYANzsKd5bz
Threatray 11'791 similar samples on MalwareBazaar
TLSH 16E4AE26F2908833C15E153C8C4B576CA836BE10392B9D46EBE81D4CAF3779179E619F
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sunshinespecialities.com
Sending IP: 156.96.45.195
From: Accounts Assistant <Yan@sunshinespecialities.com>
Subject: Fwd: Due Invoice
Attachment: Due Invoice.pdf.z (contains "Due Invoice.pdf.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Adware.Generic4.AANW.UNOFFICIAL
Create hunting rule

PUA.Win.Packer.BorlandDelphi-15
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Injector
Create hunting rule
Status:
Malicious
First seen:
2020-05-14 01:43:55 UTC
File Type:
PE (Exe)
Extracted files:
317
AV detection:
28 of 31 (90.32%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=56m4wedskifwzjhqrvdij54vuf7jfw6kr3yd2odv3iokfmzqehaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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AgentTesla
+ 11'781 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan upx
Link:
https://tria.ge/reports/201109-ja7fjc3ybn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla Payload
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

z 7c2d05aefc10a1903866b1fadf069756e2714f33596ec9b1eb8a719c1dc050df

AgentTesla

Executable exe ef99cb1072520b6ca4f08d4684f795a17e92dbca8ef03d3875da1ca2b33021c0

(this sample)

  
Dropped by
MD5 881e5eaf25efe6edb4030f231fb166b1
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7c2d05aefc10a1903866b1fadf069756e2714f33596ec9b1eb8a719c1dc050df

Comments