MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f591f2c8c67d9c61b196f05fc0730152e5a8c5cbaec47f6afaae62bdb7033cc. 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 4 File information Comments

SHA256 hash: 2f591f2c8c67d9c61b196f05fc0730152e5a8c5cbaec47f6afaae62bdb7033cc
SHA3-384 hash: 3bd024618a24ec33a435aa81ff1e313310a77fa6c732ce7ebea0fab34f75eb1f43f8016c00f933ed6bde385f854baefb
SHA1 hash: d4a61b4afa752609b8953c2fa253c31aa4a3c20e
MD5 hash: 81eb11b66d267f937b56f71cc3d9b1fb
humanhash: pluto-queen-fifteen-nineteen
File name:81eb11b66d267f937b56f71cc3d9b1fb.exe
Download: download sample
Signature AgentTesla
File size:901'120 bytes
First seen:2020-10-07 14:52:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c78d30790e99f5a402572e371918a79a (1 x GuLoader, 1 x MassLogger, 1 x HawkEye)
ssdeep 24576:s4JmYbdSi0Xhd5d8NS6D7+HRi5EwVsA0vON:5JSi0nDY743w2vy
Threatray 9'752 similar samples on MalwareBazaar
TLSH B915BE22B1A04837C173263F9C1B57B4EB26FE11F924AD462BF5DD4C9F396913929283
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 294609 Sample: 7JXwfzFxme.exe Startdate: 07/10/2020 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected AgentTesla 2->34 36 Machine Learning detection for sample 2->36 6 7JXwfzFxme.exe 2->6         started        9 arinze.exe 2->9         started        11 arinze.exe 2->11         started        process3 signatures4 38 Detected unpacking (changes PE section rights) 6->38 40 Detected unpacking (overwrites its own PE header) 6->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->42 52 2 other signatures 6->52 13 7JXwfzFxme.exe 2 11 6->13         started        44 Multi AV Scanner detection for dropped file 9->44 46 Detected unpacking (creates a PE file in dynamic memory) 9->46 48 Machine Learning detection for dropped file 9->48 18 arinze.exe 8 9->18         started        50 Maps a DLL or memory area into another process 11->50 20 arinze.exe 8 11->20         started        process5 dnsIp6 26 bh-58.webhostbox.net 199.79.63.24, 49717, 49718, 49732 PUBLIC-DOMAIN-REGISTRYUS United States 13->26 22 C:\Users\user\AppData\Local\...\arinze.exe, PE32 13->22 dropped 24 C:\Users\user\...\arinze.exe:Zone.Identifier, ASCII 13->24 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->54 56 Tries to steal Mail credentials (via file access) 13->56 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->58 28 192.168.2.1 unknown unknown 18->28 60 Tries to harvest and steal ftp login credentials 20->60 62 Tries to harvest and steal browser information (history, passwords, etc) 20->62 file7 signatures8
Threat name:
Win32.Hacktool.CeeInject
Status:
Malicious
First seen:
2020-10-07 14:13:39 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  1/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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
Unpacked files
SH256 hash:
2f591f2c8c67d9c61b196f05fc0730152e5a8c5cbaec47f6afaae62bdb7033cc
MD5 hash:
81eb11b66d267f937b56f71cc3d9b1fb
SHA1 hash:
d4a61b4afa752609b8953c2fa253c31aa4a3c20e
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_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla
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.

Web download

AgentTesla

Executable exe 2f591f2c8c67d9c61b196f05fc0730152e5a8c5cbaec47f6afaae62bdb7033cc

(this sample)

  
Delivery method
Distributed via web download

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