MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718
SHA3-384 hash: 95ad0d50aa2f1f06e80bb69177f3e74c01fddd91562cd066e68c9b4e6adaa34cb1ddff9290c2935bea3ea03353143729
SHA1 hash: 3e298fbac558f16b74f384c2ba5eb1be7ca6cf8e
MD5 hash: b2d23fbf5dfe14ac9194dff90e8a7f91
humanhash: echo-ceiling-fillet-quiet
File name:PurchaseOrder.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:638'976 bytes
First seen:2020-08-03 13:55:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 6144:RHAgbCa8sGQTLdKUXKFfyT6RwM4Sg0eqrQidXkfKGwHb6n6je4iEzxU:RHX8kT5KUXu06R7beqp4Atj
Threatray 10'618 similar samples on MalwareBazaar
TLSH 79D4173D3A83D411D93D5A3288E956D273B4B58B3B12CB0F79C9579C5F0328B3B4A266
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mike.initsky.com
Sending IP: 5.189.172.226
From: Abdul Rahman Fawzy <purch@forsan.com.sa>
Subject: Purchase Order
Attachment: PurchaseOrder.tbz2 (contains "PurchaseOrder.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37919/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/408072
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
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)
Sigma detected: Add file from suspicious location to autostart registry
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256286 Sample: PurchaseOrder.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 88 34 Yara detected AgentTesla 2->34 36 Sigma detected: Add file from suspicious location to autostart registry 2->36 38 .NET source code contains very large array initializations 2->38 40 Initial sample is a PE file and has a suspicious name 2->40 7 PurchaseOrder.exe 7 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\AppData\Roaming\Filedata.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->30 dropped 32 C:\Users\...\Filedata.exe:Zone.Identifier, ASCII 7->32 dropped 14 Filedata.exe 2 7->14         started        17 cmd.exe 1 7->17         started        19 Filedata.exe 3 10->19         started        process5 signatures6 48 Writes to foreign memory regions 14->48 50 Allocates memory in foreign processes 14->50 52 Injects a PE file into a foreign processes 14->52 21 RegAsm.exe 2 14->21         started        24 reg.exe 1 1 17->24         started        26 conhost.exe 17->26         started        process7 signatures8 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->44 46 Creates an autostart registry key pointing to binary in C:\Windows 24->46
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 13:57:11 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=26rrrpsal3dtfucg3w6gkulprdxmyaone7ai5q54sicmxazk44ma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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8e2a4c89fec2c4ea4f8787eb383158ce570267bf8dbc840594afc81e1f2aa94b
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AgentTesla
+ 10'608 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200803-drkdjawnza/
Behaviour
AgentTesla Payload
Agenttesla family
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/d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718

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 98c32f38e2ab85db6565512930666a83ca46c81666a37bf26e87a9b35676dcda

AgentTesla

Executable exe d7a318be405ec732d046ddbc65516f88eecc01cd27c08ec3bc9204cb832ae718

(this sample)

  
Dropped by
MD5 88ee6c64c1527561e60d70c621808e47
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37919/
  
Dropped by
SHA256 98c32f38e2ab85db6565512930666a83ca46c81666a37bf26e87a9b35676dcda

Comments