MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37677fa0c9255eb7368ce3d54a42e2b3e23eff33c6e2008406d9f32a71b565b8. 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 3 File information Comments

SHA256 hash: 37677fa0c9255eb7368ce3d54a42e2b3e23eff33c6e2008406d9f32a71b565b8
SHA3-384 hash: 5967793ec445e3151a784c91f36defea202655f5202d9aa9d236e50e70b1d5b4a1720b6c0b1b10e1501711f4d31da602
SHA1 hash: 868774d67042162ea7539715f8cee34bd41eb4da
MD5 hash: 4ef647613fe0cc757fe535d46a4763d7
humanhash: mike-stream-pizza-carbon
File name:EST PDA MV. TBN CALL TO CIWANDAN.exe
Download: download sample
Signature AgentTesla
File size:801'792 bytes
First seen:2020-08-31 10:13:49 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 12288:OUQNlSE1vYHJC8jYEJPOg68VLj3hjHiSDlB5kY2OeeJPqbV5Z09BNiSjjSV:pQNl3hz8/dlpjHtlB513SbV5a4SXS
Threatray 9'753 similar samples on MalwareBazaar
TLSH D705F1C1B5089661DCAD1AB2547E6D4203386C239CB4D36D7EC632DA1BFB39A8237C57
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: pertamajaya.com
Sending IP: 180.214.236.50
From: Julius <julius@pertamajaya.com>
Subject: Re: Port Inquiry for discharge 20000mt
Attachment: EST PDA MV. TBN CALL TO CIWANDAN.rar (contains "EST PDA MV. TBN CALL TO CIWANDAN.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
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
Reading critical registry keys
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
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279968 Sample: EST PDA MV. TBN CALL TO CIW... Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->32 34 Found malware configuration 2->34 36 Multi AV Scanner detection for dropped file 2->36 38 9 other signatures 2->38 7 EST PDA MV. TBN CALL TO CIWANDAN.exe 4 2->7         started        process3 file4 20 C:\Users\user\AppData\...\FgjUZKbTJrmxX.exe, PE32 7->20 dropped 22 C:\Users\user\AppData\Local\...\tmp5A84.tmp, XML 7->22 dropped 24 EST PDA MV. TBN CALL TO CIWANDAN.exe.log, ASCII 7->24 dropped 40 Writes to foreign memory regions 7->40 42 Allocates memory in foreign processes 7->42 44 Injects a PE file into a foreign processes 7->44 11 RegSvcs.exe 2 7->11         started        16 schtasks.exe 1 7->16         started        signatures5 process6 dnsIp7 28 smtp.wasaka-shippinq.com 11->28 30 us2.smtp.mailhostbox.com 208.91.198.143, 49728, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->30 26 C:\Windows\System32\drivers\etc\hosts, ASCII 11->26 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->48 50 Tries to steal Mail credentials (via file access) 11->50 52 4 other signatures 11->52 18 conhost.exe 16->18         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-31 04:05:58 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
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_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 37677fa0c9255eb7368ce3d54a42e2b3e23eff33c6e2008406d9f32a71b565b8

(this sample)

  
Delivery method
Distributed via e-mail attachment

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