MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
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SHA256 hash: 755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143
SHA3-384 hash: 85d680fe6c0b475ad8519d7e625fc4c1418a5f136b772ecc3c576cf56aced5abe67649e47742ab88396f0b72b959da18
SHA1 hash: 7aff4915bcb2713529802c2b6ac48547b91f350e
MD5 hash: f4810549fa4d4d7166c9772614a33894
humanhash: colorado-texas-fillet-maryland
File name:PO NO.O1SS2021.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'029'632 bytes
First seen:2020-10-27 09:23:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:K8Qwmct76yxTqlxL02ImcjRBQ15WuopeWOefnsQ0ktB8A/abM:K88cV6ac9pLcFK5WmEyb
Threatray 810 similar samples on MalwareBazaar
TLSH 0B25D0AD3610B6EFC427C975CDA96C50A6607C768B179703A01336AE9E3D683CF152E3
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79741/
Detection(s):
SecuriteInfo.com.ArtemisF4810549FA4D.12640.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513146
Signature
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
May check the online IP address of the machine
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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 305687 Sample: PO NO.O1SS2021.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 9 other signatures 2->53 7 PO NO.O1SS2021.exe 6 2->7         started        10 CsGlckR.exe 2 2->10         started        12 CsGlckR.exe 1 2->12         started        process3 file4 27 C:\Users\user\AppData\Roaming\ntRFoi.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp5B2A.tmp, XML 7->29 dropped 14 RegSvcs.exe 17 4 7->14         started        19 schtasks.exe 1 7->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        process5 dnsIp6 33 elb097307-934924932.us-east-1.elb.amazonaws.com 54.227.255.202, 443, 49735 AMAZON-AESUS United States 14->33 35 akdogulojistik.com 94.199.200.89, 49736, 587 AEROTEK-ASTR Turkey 14->35 37 3 other IPs or domains 14->37 31 C:\Users\user\AppData\Roaming\...\CsGlckR.exe, PE32 14->31 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->41 43 Tries to steal Mail credentials (via file access) 14->43 45 5 other signatures 14->45 25 conhost.exe 19->25         started        file7 signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 06:10:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ovn47mb536abtlfjlgq2l5dpdyviwxqqztqettulqdupjwvkufbq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 800 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201027-4w96ssyd5s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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
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
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
Create hunting rule
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

rar d966be3ec2d459c494e0744f33cbb0a99522809c453f78f0ca7e3ec976c6e480

AgentTesla

Executable exe 755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 d966be3ec2d459c494e0744f33cbb0a99522809c453f78f0ca7e3ec976c6e480
Cape
Cape
https://www.capesandbox.com/analysis/79741/

Comments