MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8846c5d088724ae06915e0e0f987ca3a65fba368095bc73f3109f6cb7841318b. 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: 8846c5d088724ae06915e0e0f987ca3a65fba368095bc73f3109f6cb7841318b
SHA3-384 hash: 1d13bc1bf2851a08827cb1ced61384339ad23ce10b59413754d5ce6a06d4178e216ae61f169cc24b80876b4534fc280d
SHA1 hash: 181d352a869f14512dcfcd475109ca0c628e1ade
MD5 hash: 80a3e56f0e754b838dc4a2c49b44b7ac
humanhash: minnesota-west-zulu-massachusetts
File name:IMG-43555_UTR 34444_PDF.exe
Download: download sample
Signature AgentTesla
File size:963'072 bytes
First seen:2020-08-31 13:04:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:V8A2na77a9dEt4llnh8Of+WSli3+n6eac:ec+et4llnhPmWSc3e6e9
Threatray 9'614 similar samples on MalwareBazaar
TLSH 2725E013431D8B2EDC1973B9345040DCD2B16F82FF39E1D8EE4771EAA86A64DA19D6C2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ph.phonicphaseapi.live
Sending IP: 45.95.171.224
From: Ahmed.khalid <info@bisselldirect.co.uk>
Reply-To: Ahmed.khalid <info@phonicphaseapi.live>
Subject: REQUEST FOR QUOTE
Attachment: IMG-43555_UTR 34444_PDF.r02 (contains "IMG-43555_UTR 34444_PDF.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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: 280114 Sample: IMG-43555_UTR 34444_PDF.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 Sigma detected: Scheduled temp file as task from temp location 2->40 42 9 other signatures 2->42 8 IMG-43555_UTR 34444_PDF.exe 7 2->8         started        process3 file4 24 C:\Users\user\AppData\Roaming\xlKLvoqG.exe, PE32 8->24 dropped 26 C:\Users\...\xlKLvoqG.exe:Zone.Identifier, ASCII 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmp7CFD.tmp, XML 8->28 dropped 30 C:\Users\...\IMG-43555_UTR 34444_PDF.exe.log, ASCII 8->30 dropped 44 Writes to foreign memory regions 8->44 46 Allocates memory in foreign processes 8->46 48 Injects a PE file into a foreign processes 8->48 12 RegSvcs.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 32 smtp.urban.co.th 12->32 34 us2.smtp.mailhostbox.com 208.91.199.223, 49723, 587 PUBLIC-DOMAIN-REGISTRYUS United States 12->34 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->52 54 Tries to steal Mail credentials (via file access) 12->54 56 3 other signatures 12->56 18 MpCmdRun.exe 1 16->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-31 03:19:33 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
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 8846c5d088724ae06915e0e0f987ca3a65fba368095bc73f3109f6cb7841318b

(this sample)

  
Delivery method
Distributed via e-mail attachment

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