MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7118b5327e01dc08fae4ab228e1ae2920dde4df42232fa8062eaf90066b3f7d. 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: a7118b5327e01dc08fae4ab228e1ae2920dde4df42232fa8062eaf90066b3f7d
SHA3-384 hash: 85e6105f36530e4538940ea7475074c5604118faebf05d829c5f2417d0aaffae4c848c771149be5cd27a53b22816cc58
SHA1 hash: fc509919f95179ce3bec376a46e09cf83fd320a2
MD5 hash: d4d2f911ce6330572ed9b6045bd7142d
humanhash: lactose-nebraska-cardinal-east
File name:payment details.exe
Download: download sample
Signature AgentTesla
File size:813'056 bytes
First seen:2020-08-10 09:50:01 UTC
Last seen:2020-08-10 13:55:40 UTC
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:xj8WpM2kbn1vzjM6bykgjpQASJAS3TP0:rpM2mxzjM93N5STP0
Threatray 10'638 similar samples on MalwareBazaar
TLSH 6105DF5B22DDBFCAC4F85674633FA3C0C31CED169962CA1D6AC436AA20BE355B5153E0
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: qtechglobal.com
Sending IP: 103.99.1.172
From: "peiqin.cao"<peiqin.cao@qtechglobal.com>
Attachment: payment details.rar (contains "payment details.exe")

Intelligence


File Origin
# of uploads :
3
# of downloads :
71
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
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts 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: 260750 Sample: payment details.exe Startdate: 10/08/2020 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Sigma detected: Scheduled temp file as task from temp location 2->53 55 8 other signatures 2->55 8 payment details.exe 7 2->8         started        12 jIxVtUg.exe 2 2->12         started        14 jIxVtUg.exe 1 2->14         started        process3 file4 37 C:\Users\user\AppData\Roaming\maCsppr.exe, PE32 8->37 dropped 39 C:\Users\user\...\maCsppr.exe:Zone.Identifier, ASCII 8->39 dropped 41 C:\Users\user\AppData\Local\...\tmp8183.tmp, XML 8->41 dropped 43 C:\Users\user\...\payment details.exe.log, ASCII 8->43 dropped 65 Writes to foreign memory regions 8->65 67 Injects a PE file into a foreign processes 8->67 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        signatures5 process6 dnsIp7 45 mail.tejoofashions.com 148.66.138.106, 49744, 587 AS-26496-GO-DADDY-COM-LLCUS Singapore 16->45 47 192.168.2.1 unknown unknown 16->47 33 C:\Users\user\AppData\Roaming\...\jIxVtUg.exe, PE32 16->33 dropped 35 C:\Windows\System32\drivers\etc\hosts, ASCII 16->35 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->59 61 Tries to steal Mail credentials (via file access) 16->61 63 5 other signatures 16->63 27 reg.exe 1 16->27         started        29 conhost.exe 21->29         started        file8 signatures9 process10 process11 31 conhost.exe 27->31         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-10 09:51:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads data files stored by FTP 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 a7118b5327e01dc08fae4ab228e1ae2920dde4df42232fa8062eaf90066b3f7d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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