MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 09e71602eb0764d2729c47a67c19d64deecca8aa175b529f271cf72795725502. 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

SHA256 hash: 09e71602eb0764d2729c47a67c19d64deecca8aa175b529f271cf72795725502
SHA3-384 hash: 3dce1586fe5ab194e744a2a258b1966bf1644d3828ee8d39839dcc9bca1580dd10386839c3ca3e8e021f33fbf9c1d575
SHA1 hash: 5a4f0a7aad8976d9eedb32c5794d3106567fdca2
MD5 hash: cdca6a54649a21b1e7458999431b4986
humanhash: nuts-washington-october-hawaii
File name:MT103RIF100820-PDF_________________________________________________.gz.exe
Download: download sample
Signature AgentTesla
File size:870'400 bytes
First seen:2020-08-13 13:39:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash bd9a6764235778d7fabb327e5e20a560 (8 x AgentTesla, 6 x Loki, 2 x NetWire)
ssdeep 12288:Ymp9XVk3rNq8srw+ZdKSsWItO8n+D0s+rIJ0dyp3DPrm9kypEC/F+64gYuXt+l1+:NlQNqHMWKKcAFrJp4OA/F+gt+2
Threatray 10'695 similar samples on MalwareBazaar
TLSH 59058C53B29F363ED127163DA83B77749829BF132A147B463BE49C4C5E3827938261D2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: jinasia.com
Sending IP: 185.222.57.80
From: "진아산업"% <jinasia@jinasia.com>
Subject: Fwd: MT103RIF100820
Attachment: MT103RIF100820-PDF_________________________________________________.gz (contains "MT103RIF100820-PDF_________________________________________________.gz.exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265855 Sample: MT103RIF100820-PDF_________... Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Yara detected AgentTesla 2->35 37 Sigma detected: Drops script at startup location 2->37 39 2 other signatures 2->39 7 MT103RIF100820-PDF_________________________________________________.gz.exe 2->7         started        10 wscript.exe 1 2->10         started        process3 signatures4 41 Detected unpacking (changes PE section rights) 7->41 43 Detected unpacking (creates a PE file in dynamic memory) 7->43 45 Detected unpacking (overwrites its own PE header) 7->45 47 7 other signatures 7->47 12 MT103RIF100820-PDF_________________________________________________.gz.exe 4 7->12         started        16 notepad.exe 1 7->16         started        19 MT103RIF100820-PDF_________________________________________________.gz.exe 7->19         started        21 MT103RIF100820-PDF_________________________________________________.gz.exe 10->21         started        process5 dnsIp6 27 smtp.yandex.ru 77.88.21.158, 49745, 587 YANDEXRU Russian Federation 12->27 29 192.168.2.1 unknown unknown 12->29 31 smtp.yandex.com 12->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->49 51 Tries to steal Mail credentials (via file access) 12->51 53 Tries to harvest and steal ftp login credentials 12->53 55 Tries to harvest and steal browser information (history, passwords, etc) 12->55 25 C:\Users\user\AppData\Roaming\...\Appat.vbs, ASCII 16->25 dropped 57 Drops VBS files to the startup folder 16->57 59 Delayed program exit found 16->59 23 notepad.exe 21->23         started        file7 signatures8 process9
Threat name:
Win32.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-08-13 13:41:08 UTC
AV detection:
21 of 48 (43.75%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
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
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
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

Executable exe 09e71602eb0764d2729c47a67c19d64deecca8aa175b529f271cf72795725502

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments