MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8905819fcaa0d71e50cc1ec90e32258967e011878efb78f8db8893ad04a98174. 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: 8905819fcaa0d71e50cc1ec90e32258967e011878efb78f8db8893ad04a98174
SHA3-384 hash: adf1522e8e95cef38a69514d37f2b1f8b0bc92af6f97872579073f51b45c5ca4289b8ff8e7230e26676a38b62b351ded
SHA1 hash: e9b0579e0f910ae8bd7ee0b796a525e80c67a7cf
MD5 hash: 8450d28fb6f38401825192dfd03e7179
humanhash: delaware-tennessee-two-double
File name:Payment Query.exe
Download: download sample
Signature AgentTesla
File size:2'619'392 bytes
First seen:2021-01-10 12:48:05 UTC
Last seen:2021-01-10 14:43:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:vQ+Ak/ce5WJJI2xvd5kOR9wxy+G2ST+AtN2ZeIXmmhKOsXH7cU2:NMIkvdOOR9a3zM
Threatray 2'109 similar samples on MalwareBazaar
TLSH 8DC5E4112FD3254EF2F3E27612B29ADA9F38FA7A72455A09825D1B554C03F862F83D07
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: secure.zrl.com.zm
Sending IP: 216.194.164.118
From: Financial Manager <financialmanager@eventcenter.com>
Subject: Urgent Payment Query
Attachment: Payament Query.iso (contains "Payment Query.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Query.exe
Verdict:
Malicious activity
Analysis date:
2021-01-10 12:49:09 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
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Enabling autorun by creating a file
Enabling autorun
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 337778 Sample: Payment Query.exe Startdate: 10/01/2021 Architecture: WINDOWS Score: 100 48 Multi AV Scanner detection for dropped file 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected AgentTesla 2->52 54 7 other signatures 2->54 6 Payment Query.exe 3 5 2->6         started        10 CZVkY.exe 1 4 2->10         started        12 Payment Query.exe 2->12         started        14 7 other processes 2->14 process3 file4 34 C:\Users\user\AppData\...\Payment Query.exe, PE32 6->34 dropped 36 C:\...\Payment Query.exe:Zone.Identifier, ASCII 6->36 dropped 38 C:\Users\user\...\Payment Query.exe.log, ASCII 6->38 dropped 56 Creates an undocumented autostart registry key 6->56 58 Injects a PE file into a foreign processes 6->58 16 Payment Query.exe 2 5 6->16         started        40 C:\Users\user\AppData\Roaming\...\CZVkY.exe, PE32 10->40 dropped 60 Multi AV Scanner detection for dropped file 10->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->62 64 Machine Learning detection for dropped file 10->64 70 2 other signatures 10->70 20 CZVkY.exe 10->20         started        66 Creates multiple autostart registry keys 12->66 22 Payment Query.exe 12->22         started        24 Payment Query.exe 12->24         started        68 Creates autostart registry keys with suspicious names 14->68 26 Payment Query.exe 2 14->26         started        28 CZVkY.exe 14->28         started        signatures5 process6 file7 30 C:\Users\user\AppData\Roaming\...\CZVkY.exe, PE32 16->30 dropped 32 C:\Users\user\...\CZVkY.exe:Zone.Identifier, ASCII 16->32 dropped 42 Moves itself to temp directory 16->42 44 Creates multiple autostart registry keys 16->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->46 signatures8
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2021-01-10 12:49:06 UTC
AV detection:
18 of 29 (62.07%)
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 behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
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
Modifies WinLogon for persistence
AgentTesla
Unpacked files
SH256 hash:
8905819fcaa0d71e50cc1ec90e32258967e011878efb78f8db8893ad04a98174
MD5 hash:
8450d28fb6f38401825192dfd03e7179
SHA1 hash:
e9b0579e0f910ae8bd7ee0b796a525e80c67a7cf
SH256 hash:
91231b197ae3db4f4c522ccc4e2fe847c500462f4de1b7cce0a3991b22d1098c
MD5 hash:
4d0fdea20dfd8d57aa02d9e3e0000370
SHA1 hash:
f7967d1aa2c15d36750507c9aef161c2a8da9006
SH256 hash:
f85de41c4b50363cb064ee3e364920635280a2fcbad67a114936016810ddafad
MD5 hash:
9a3890b1e79aba63b3597101c87337da
SHA1 hash:
fe5b2f4ae6213209b1a2f8e1f732573a068eba73
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: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 8905819fcaa0d71e50cc1ec90e32258967e011878efb78f8db8893ad04a98174

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments