MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 745d7e099bc7b27dc1a92b85cb557aa62404c27fc1e0f6f04d5ba3735004bb77. 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 7 File information Comments

SHA256 hash: 745d7e099bc7b27dc1a92b85cb557aa62404c27fc1e0f6f04d5ba3735004bb77
SHA3-384 hash: 3ffe1ff5287f0f6cccceb69e36a05ad4dcfee683e9218a77c2a05fef7cc8d2785d0350fbce400d6b0c2bc13527fa0f9b
SHA1 hash: f049c25f5e52aad33b5b50a0e03992d7e7907cc5
MD5 hash: 8ec48f2893536d3a8dfaca327c974160
humanhash: sodium-mars-robert-hot
File name:EU-51X563711-pdf.exe
Download: download sample
Signature AgentTesla
File size:889'344 bytes
First seen:2021-09-08 09:21:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:PlAtklEfuQYOSA96AAcU18BJ341NKcwD9:tFEWQgAYcRB6e
Threatray 9'665 similar samples on MalwareBazaar
TLSH T1D215862DF5BD9226826DCACDCFD35417E391455A332399201BB7435EA212B82F483F6E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EU-51X563711-pdf.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-08 09:38:24 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
Sending a UDP request
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Powershell Defender Exclusion
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 479714 Sample: EU-51X563711-pdf.exe Startdate: 08/09/2021 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 7 other signatures 2->55 7 EU-51X563711-pdf.exe 4 2->7         started        11 xepul.exe 4 2->11         started        13 xepul.exe 2->13         started        process3 file4 35 C:\Users\user\...U-51X563711-pdf.exe.log, ASCII 7->35 dropped 57 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->57 59 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->59 61 Adds a directory exclusion to Windows Defender 7->61 15 EU-51X563711-pdf.exe 2 5 7->15         started        19 powershell.exe 24 7->19         started        63 Machine Learning detection for dropped file 11->63 21 powershell.exe 11->21         started        23 xepul.exe 11->23         started        65 Injects a PE file into a foreign processes 13->65 25 powershell.exe 13->25         started        27 xepul.exe 13->27         started        signatures5 process6 file7 37 C:\Users\user\AppData\Roaming\...\xepul.exe, PE32 15->37 dropped 39 C:\Users\user\...\xepul.exe:Zone.Identifier, ASCII 15->39 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->41 43 Tries to steal Mail credentials (via file access) 15->43 45 Tries to harvest and steal ftp login credentials 15->45 47 2 other signatures 15->47 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-08 09:22:06 UTC
AV detection:
25 of 28 (89.29%)
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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
SH256 hash:
c3c542935aef50d825f3293e2ebd3669b603e37fa3cd898160ed7077b1002121
MD5 hash:
208236922ce491811429aca01438a23d
SHA1 hash:
a17b7db61109528c615c2d0179c63c939ec63536
SH256 hash:
405fca12683010e887efbe06b1f3025b6344013f461622729d78f68a45f21f5f
MD5 hash:
0329827ffdf54493de2e075ef5dd18db
SHA1 hash:
6fa6773030d20b9515b628cade7447c019315462
SH256 hash:
745d7e099bc7b27dc1a92b85cb557aa62404c27fc1e0f6f04d5ba3735004bb77
MD5 hash:
8ec48f2893536d3a8dfaca327c974160
SHA1 hash:
f049c25f5e52aad33b5b50a0e03992d7e7907cc5
Malware family:
Agent Tesla v3
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:pe_imphash
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 745d7e099bc7b27dc1a92b85cb557aa62404c27fc1e0f6f04d5ba3735004bb77

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments