MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 62ec54be232c964bfd6b4c669c331079f6830f688291cbe9e0f079924a9a3253. 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 4 File information Comments

SHA256 hash: 62ec54be232c964bfd6b4c669c331079f6830f688291cbe9e0f079924a9a3253
SHA3-384 hash: cb39aa1ea4b1d8c331ac7111443845903ec0050169359188d4da2c87b0a18a9cc33dbed46befdcd1409b758a51edbb46
SHA1 hash: 8ebf7a45f748e9bda7108370355ff4d4f454a7cf
MD5 hash: a6ea57a8ec937a10225d524f195deb7e
humanhash: queen-lion-cat-florida
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
File size:892'928 bytes
First seen:2020-09-03 05:43:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:01yb/fb8Scg6po5F4wPFBHPR2tQvq3zA:01YgScg6jKFtY6qs
Threatray 9'243 similar samples on MalwareBazaar
TLSH EA15DF80D56C8375FDA96336E63BC87422262DBD6870E51E18CE3E773BBB7921D19042
Reporter cocaman
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Changing the hosts file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 281402 Sample: Purchase Order.exe Startdate: 03/09/2020 Architecture: WINDOWS Score: 100 43 cdn.onenote.net 2->43 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 7 other signatures 2->59 8 Purchase Order.exe 6 2->8         started        12 WCPCe.exe 2 2->12         started        14 WCPCe.exe 1 2->14         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\OwYNeROokqWPfN.exe, PE32 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmp888F.tmp, XML 8->35 dropped 37 C:\Users\user\...\Purchase Order.exe.log, ASCII 8->37 dropped 61 Writes to foreign memory regions 8->61 63 Injects a PE file into a foreign processes 8->63 16 RegSvcs.exe 2 4 8->16         started        21 schtasks.exe 1 8->21         started        23 conhost.exe 12->23         started        25 conhost.exe 14->25         started        signatures6 process7 dnsIp8 39 smtp.vrajmangal.com 16->39 41 us2.smtp.mailhostbox.com 208.91.198.143, 49749, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->41 29 C:\Users\user\AppData\Roaming\...\WCPCe.exe, PE32 16->29 dropped 31 C:\Windows\System32\drivers\etc\hosts, ASCII 16->31 dropped 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->47 49 Tries to steal Mail credentials (via file access) 16->49 51 5 other signatures 16->51 27 conhost.exe 21->27         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-09-03 04:48:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
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
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 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_g2
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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.

Malspam

AgentTesla

Executable exe 62ec54be232c964bfd6b4c669c331079f6830f688291cbe9e0f079924a9a3253

(this sample)

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