MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0
SHA3-384 hash: fba5329a32a14634ce4bccd7ea89c993064158c0dec0fc4bbd1c53071e4c6e57e00750968c93bfd7417ce99decacc718
SHA1 hash: a52a8e3d0051798672c435ac41cdfc8ac668a80a
MD5 hash: 64e367c58afd3f0b145184e91dbbc808
humanhash: item-neptune-south-saturn
File name:PO# 459ARG1672020.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:726'016 bytes
First seen:2020-07-16 08:04:15 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 6144:6bO2CS28qtmuFD7ms9B2XTGPrisMKETJ9b1JFQYmCZbtwkS/gPQpfreJL23u/eh:6i2CSVq2s90CPryJ9bvqkS/tFeGh
Threatray 10'639 similar samples on MalwareBazaar
TLSH 79F44A393A8A5415D93E157144A44AD073B2AD8B3E12C70F79D6739CAF333CB3B4626A
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: srv2.trendstudio.it
Sending IP: 62.116.182.204
From: Elena <info@excellaglobal.com>
Subject: PO#459ARG16072020-URGENTE
Attachment: PO 459ARG1672020.xz (contains "PO# 459ARG1672020.scr")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/26498/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/389439
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246902 Sample: PO# 459ARG1672020.scr Startdate: 19/07/2020 Architecture: WINDOWS Score: 72 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected AgentTesla 2->36 38 .NET source code contains very large array initializations 2->38 40 2 other signatures 2->40 7 PO# 459ARG1672020.exe 5 2->7         started        10 pcalua.exe 1 1 2->10         started        12 pcalua.exe 1 2->12         started        process3 file4 26 C:\Users\user\Music\window.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->28 dropped 30 C:\Users\user\...\window.exe:Zone.Identifier, ASCII 7->30 dropped 32 C:\Users\user\...\PO# 459ARG1672020.exe.log, ASCII 7->32 dropped 14 window.exe 7->14         started        17 cmd.exe 1 7->17         started        process5 signatures6 44 Multi AV Scanner detection for dropped file 14->44 46 Machine Learning detection for dropped file 14->46 48 Writes to foreign memory regions 14->48 50 2 other signatures 14->50 19 InstallUtil.exe 14->19         started        21 reg.exe 1 1 17->21         started        24 conhost.exe 17->24         started        process7 signatures8 42 Creates an autostart registry key pointing to binary in C:\Windows 21->42
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 08:06:06 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nwuxfg4jvvvqv7z7straovfj2rqyl7qmsb3kvfin36he44qol3ya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'629 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/200716-9hxmldxsr6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
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

xz 3546212c1dd76d4af5ac51e905d260b96494fb31fbec2a32e1fb6b2b8acf46f4

AgentTesla

Executable exe 6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0

(this sample)

  
Dropped by
MD5 c6e2eddc60470670a3792a3e83873692
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/26498/
  
Dropped by
SHA256 3546212c1dd76d4af5ac51e905d260b96494fb31fbec2a32e1fb6b2b8acf46f4

Comments