MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15be9e4daf42167b3dbde6d51635bec36c27c59017336da5a47a6b735ec2fcf6. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 15be9e4daf42167b3dbde6d51635bec36c27c59017336da5a47a6b735ec2fcf6
SHA3-384 hash: 29a0365ab15205cf40c7ce4ed889506db2a459dd2fe35ad05f504a15640e6eadfb98f4761de0667417be816e4dd47691
SHA1 hash: 731ccb6ceec16a09cdb0ddfa64e8730b80fbed60
MD5 hash: 275b97007fbf1e5bdc737542b3359443
humanhash: wisconsin-victor-west-friend
File name:15be9e4daf42167b3dbde6d51635bec36c27c59017336da5a47a6b735ec2fcf6
Download: download sample
Signature AgentTesla
File size:1'007'616 bytes
First seen:2020-09-11 08:25:56 UTC
Last seen:2020-09-11 08:36:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fa12a0dd3b05a4b28db7dd32db315623 (2 x AgentTesla)
ssdeep 24576:W+M3l293IwqFppchx7eoG4lzq1no0RnJOLurdl:W+8+IQhx7eoG4lzknRngc
Threatray 10'688 similar samples on MalwareBazaar
TLSH C0258E17B2A04836D57219799D1B92B0993ABD602F3C66493BE5F9CC0FBB28138353D7
Reporter madjack_red
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284377 Sample: yZglbCTeEp Startdate: 11/09/2020 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 3 other signatures 2->38 7 yZglbCTeEp.exe 2->7         started        10 wscript.exe 1 2->10         started        process3 signatures4 48 Detected unpacking (changes PE section rights) 7->48 50 Detected unpacking (creates a PE file in dynamic memory) 7->50 52 Detected unpacking (overwrites its own PE header) 7->52 54 7 other signatures 7->54 12 notepad.exe 1 7->12         started        15 yZglbCTeEp.exe 2 7->15         started        17 yZglbCTeEp.exe 10->17         started        process5 signatures6 56 Drops VBS files to the startup folder 12->56 58 Delayed program exit found 12->58 60 Writes to foreign memory regions 17->60 62 Allocates memory in foreign processes 17->62 64 Maps a DLL or memory area into another process 17->64 19 yZglbCTeEp.exe 2 17->19         started        23 notepad.exe 1 17->23         started        process7 dnsIp8 28 smtp.yandex.ru 77.88.21.158, 49736, 587 YANDEXRU Russian Federation 19->28 30 smtp.yandex.com 19->30 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->40 42 Tries to steal Mail credentials (via file access) 19->42 44 Tries to harvest and steal ftp login credentials 19->44 46 Tries to harvest and steal browser information (history, passwords, etc) 19->46 26 C:\Users\user\AppData\...\APP UPDATE.vbs, ASCII 23->26 dropped file9 signatures10
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-09-11 01:41:28 UTC
AV detection:
43 of 48 (89.58%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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
UPX packed file
AgentTesla Payload
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments