MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71f156f01f3722503ae7b346c37f64a6bc9efe810309636aa30673062b59aa6a. 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: 71f156f01f3722503ae7b346c37f64a6bc9efe810309636aa30673062b59aa6a
SHA3-384 hash: b65dc4e956e00f7058134d7e16f31203d87df81dfddce73182b4e88a215e07a9ecf1df456249befed291222cbd72f4bc
SHA1 hash: 32cf644400502864998381980c29e7b27d80463e
MD5 hash: 1831e1e0d88a91010aca6021d3e77a79
humanhash: london-green-hot-illinois
File name:1831e1e0d88a91010aca6021d3e77a79.exe
Download: download sample
Signature AgentTesla
File size:900'096 bytes
First seen:2020-09-25 09:58:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 27d4dacfac04a1a81556912c5945ad85 (6 x AgentTesla)
ssdeep 24576:xZD1cQJRl7oN0RhBIVduQVcgfihXL/6eM1:bJR+17Vc5XM1
Threatray 9'506 similar samples on MalwareBazaar
TLSH 8015B023F2A1483FC17325389C1B5BF89D36BD10FA28A8865BF5ED0C5F396917925287
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 :
100
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
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: 289931 Sample: WgRCCeCxk1.exe Startdate: 25/09/2020 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 arinze.exe 2->6         started        9 WgRCCeCxk1.exe 2->9         started        11 arinze.exe 2->11         started        process3 signatures4 38 Multi AV Scanner detection for dropped file 6->38 40 Detected unpacking (changes PE section rights) 6->40 42 Detected unpacking (creates a PE file in dynamic memory) 6->42 52 2 other signatures 6->52 13 arinze.exe 4 6->13         started        44 Detected unpacking (overwrites its own PE header) 9->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->46 48 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->48 17 WgRCCeCxk1.exe 2 7 9->17         started        50 Maps a DLL or memory area into another process 11->50 20 arinze.exe 4 11->20         started        process5 dnsIp6 26 bh-58.webhostbox.net 199.79.63.24, 49716, 49723, 49732 PUBLIC-DOMAIN-REGISTRYUS United States 17->26 22 C:\Users\user\AppData\Local\...\arinze.exe, PE32 17->22 dropped 24 C:\Users\user\...\arinze.exe:Zone.Identifier, ASCII 17->24 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->54 56 Tries to steal Mail credentials (via file access) 17->56 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->58 28 192.168.2.1 unknown unknown 20->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.Infostealer.Fareit
Status:
Malicious
First seen:
2020-09-21 17:49:55 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
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:
71f156f01f3722503ae7b346c37f64a6bc9efe810309636aa30673062b59aa6a
MD5 hash:
1831e1e0d88a91010aca6021d3e77a79
SHA1 hash:
32cf644400502864998381980c29e7b27d80463e
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.

Web download

AgentTesla

Executable exe 71f156f01f3722503ae7b346c37f64a6bc9efe810309636aa30673062b59aa6a

(this sample)

  
Delivery method
Distributed via web download

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