MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8855fafbd275b5d7c85a8106502c7a059f06622d8b418b596747cbbd44d37315. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments

SHA256 hash: 8855fafbd275b5d7c85a8106502c7a059f06622d8b418b596747cbbd44d37315
SHA3-384 hash: 018e5500962c082879bb24e45bd854f33fa2944c5208da0cb96195d779f0824bc613c07ecd380b6921c2283a36d2dfed
SHA1 hash: 2aa02c4884e741b34faa41d9da9272e91d74ae62
MD5 hash: 9350f92bce70c93109495ab287bdf4c1
humanhash: bluebird-black-solar-oregon
File name:boni crypted.exe
Download: download sample
Signature AgentTesla
File size:960'000 bytes
First seen:2021-05-25 08:45:36 UTC
Last seen:2021-05-25 09:13:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:IwzkrMjoT/I9Rlum9wekObfZ53hrID1yrCXwR1C+0YQyO1+PM2pTrkdYsPeJtXQP:PAWoTJApbpgU3C
Threatray 5'234 similar samples on MalwareBazaar
TLSH 7A156B243AFA501AB173EFAA4BE4B5D6DA6FB7733B07A45E1050038A0723A41DDD153E
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
3
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
boni crypted.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-25 08:48:57 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Changing the hosts file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Modifies the hosts file
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: 423746 Sample: boni crypted.exe Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected AgentTesla 2->49 51 5 other signatures 2->51 6 boni crypted.exe 3 2->6         started        9 NXLun.exe 3 2->9         started        12 NXLun.exe 2 2->12         started        process3 file4 27 C:\Users\user\...\boni crypted.exe.log, ASCII 6->27 dropped 14 boni crypted.exe 2 5 6->14         started        19 boni crypted.exe 6->19         started        53 Multi AV Scanner detection for dropped file 9->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->57 21 NXLun.exe 2 9->21         started        23 NXLun.exe 9->23         started        25 NXLun.exe 12->25         started        signatures5 process6 dnsIp7 35 wasstech.com 204.93.196.181, 49745, 587 SERVERCENTRALUS United States 14->35 29 C:\Users\user\AppData\Roaming\...29XLun.exe, PE32 14->29 dropped 31 C:\Users\user\...31XLun.exe:Zone.Identifier, ASCII 14->31 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Tries to steal Mail credentials (via file access) 14->39 41 Tries to harvest and steal ftp login credentials 14->41 43 3 other signatures 14->43 33 C:\Windows\System32\drivers\etc\hosts, ASCII 25->33 dropped file8 signatures9
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-25 07:10:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
9 of 47 (19.15%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
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
Drops file in Drivers directory
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Ping_Del_method_bin_mem
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 8855fafbd275b5d7c85a8106502c7a059f06622d8b418b596747cbbd44d37315

(this sample)

  
Delivery method
Distributed via e-mail attachment

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