MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61e359792e38f76dfd2bb9378e8679403344449f0f40946042f8a285f4ea0548. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash: 61e359792e38f76dfd2bb9378e8679403344449f0f40946042f8a285f4ea0548
SHA3-384 hash: 1371227f3bef3cca5c743614b88ae12b23e1ae2a35c787cdd9102edadc19210c84eff6ae3aea678834e2857b4f269d82
SHA1 hash: 4c49e168975522c86dc9e3088be827c0a65f1ec2
MD5 hash: 9e080d0b1b76c7fcec1b6954b0e4faa2
humanhash: cup-jersey-blossom-solar
File name:invoice.pdf.exe
Download: download sample
Signature AgentTesla
File size:450'048 bytes
First seen:2021-09-16 09:14:39 UTC
Last seen:2021-09-16 10:08:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:BWHCM2K4Cr/ZYA8d8Z7Nu5GrA8gPal9VzXj1zIdgA5th:j3CFYbd8C5fTqjj1zIn5t
Threatray 10'803 similar samples on MalwareBazaar
TLSH T108A4C0243AEB8019F1B3EF768FD9B5969A6EF7633703D85D2191038A0613B80CD9157E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-16 09:21:54 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
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm obfuscated packed
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 strings
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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: Suspicious Double Extension
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 484369 Sample: invoice.pdf.exe Startdate: 16/09/2021 Architecture: WINDOWS Score: 100 26 x1.i.lencr.org 2->26 28 r3.i.lencr.org 2->28 32 Found malware configuration 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected AgentTesla 2->36 38 8 other signatures 2->38 8 invoice.pdf.exe 7 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\Local\...\tmp1611.tmp, XML 8->20 dropped 22 C:\Users\user\AppData\...\invoice.pdf.exe.log, ASCII 8->22 dropped 24 C:\Users\user\AppData\...\uulAnYcJOtHep.exe, PE32 8->24 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->42 44 Uses schtasks.exe or at.exe to add and modify task schedules 8->44 46 Injects a PE file into a foreign processes 8->46 12 invoice.pdf.exe 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures6 process7 dnsIp8 30 mail.idealbimbo.it 62.205.2.35, 49796, 587 DEVITALIA-SRLIT Italy 12->30 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Tries to steal Mail credentials (via file access) 12->50 52 Tries to harvest and steal ftp login credentials 12->52 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 18 conhost.exe 16->18         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-09-16 09:15:11 UTC
AV detection:
12 of 45 (26.67%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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:
7c350e5bb42fa4d8d0a4e48d8835362a6eec99b874fc41b84f400ba81a5c43b4
MD5 hash:
a65edf0a2d692d5e04c5948ac2ba60d2
SHA1 hash:
fab9e087ff722cbd7b11a93728b326ed12390d8e
SH256 hash:
dac54a6969e4c281b1497022ec8e400206bc985325e33d83b7992121810f2c64
MD5 hash:
fdc171957b08fea41a996d06ee2bf28b
SHA1 hash:
edff61539d4684ee86f261118669e6923a3e2245
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
SH256 hash:
61e359792e38f76dfd2bb9378e8679403344449f0f40946042f8a285f4ea0548
MD5 hash:
9e080d0b1b76c7fcec1b6954b0e4faa2
SHA1 hash:
4c49e168975522c86dc9e3088be827c0a65f1ec2
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 61e359792e38f76dfd2bb9378e8679403344449f0f40946042f8a285f4ea0548

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments