MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0. 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

SHA256 hash: 428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0
SHA3-384 hash: 8d64b3c8aee892718ba01693c27da7963ceaa2c47e57deb0f0a86642282c86f8e8cb5db0a6d14e5746070bd45e4f1fe7
SHA1 hash: 89c65462fff8832f96e2b51f877cc3b5ac3bfb21
MD5 hash: 6f4595c6705b4751d83a8de14c5a3d6c
humanhash: papa-cardinal-saturn-mike
File name:428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0
Download: download sample
Signature AgentTesla
File size:740'352 bytes
First seen:2020-11-10 11:42:37 UTC
Last seen:2024-07-24 13:35:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 230f024031d7c58ce0df197af9c448f0 (25 x AgentTesla, 17 x Loki, 16 x NanoCore)
ssdeep 12288:+wxPKW8MMHvU2H2uiQpNar63lWiPjDvkATmv/cDl3P8dbrKPI00/M/gUs:+gKNMMt2uiQpNPVRjDvk7v0Fg2PE/KE
Threatray 2'603 similar samples on MalwareBazaar
TLSH E0F4AE33E2804437D2A32A3C8C5BA7649835BD113E28E9463FF71D4C9F39A616A75397
Reporter seifreed
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
3
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Result
Verdict:
MALICIOUS
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.spyw.evad
Score:
100 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
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
Maps a DLL or memory area into another process
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)
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: 313321 Sample: RDp6VoVSfQ Startdate: 10/11/2020 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected AgentTesla 2->34 36 Machine Learning detection for sample 2->36 6 RDp6VoVSfQ.exe 2->6         started        9 YYtJku.exe 2->9         started        11 YYtJku.exe 2->11         started        process3 signatures4 38 Detected unpacking (changes PE section rights) 6->38 40 Detected unpacking (creates a PE file in dynamic memory) 6->40 42 Detected unpacking (overwrites its own PE header) 6->42 52 2 other signatures 6->52 13 RDp6VoVSfQ.exe 2 5 6->13         started        44 Multi AV Scanner detection for dropped file 9->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->46 48 Machine Learning detection for dropped file 9->48 18 YYtJku.exe 2 9->18         started        50 Maps a DLL or memory area into another process 11->50 20 YYtJku.exe 2 11->20         started        process5 dnsIp6 26 flsrnidth.com 66.70.204.222, 49726, 587 OVHFR Canada 13->26 28 mail.flsrnidth.com 13->28 22 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 13->22 dropped 24 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 13->24 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->54 56 Moves itself to temp directory 13->56 58 Tries to steal Mail credentials (via file access) 13->58 60 3 other signatures 13->60 file7 signatures8
Threat name:
Win32.Trojan.Detplock
Status:
Malicious
First seen:
2020-11-10 12:38:34 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
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
UPX packed file
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: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.

  
Delivery method
Other

Comments