MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 743cd5b161539860d7779adcc10b393ebb812c8c201b98c974b43ff1f404c34d. 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
| SHA256 hash: | 743cd5b161539860d7779adcc10b393ebb812c8c201b98c974b43ff1f404c34d |
|---|---|
| SHA3-384 hash: | c5707e4e7e0f4f0b74089650da6a57d20789a410cc5ece19ca8c5e0c504c0bb1c19080076a1722d8dc1404b7bd916c5d |
| SHA1 hash: | 935ff6bb1dd762b33036bef5907891ababbf769f |
| MD5 hash: | 76a16bed1a858e75f1ef97d567013ada |
| humanhash: | undress-comet-virginia-kentucky |
| File name: | 未付发票付款(Outstanding invoice payments).exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 684'032 bytes |
| First seen: | 2020-08-27 08:52:46 UTC |
| Last seen: | 2020-08-27 10:09:27 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 12288:mTHhQyKRT0N7RiMbBIRWSq21s/N8f0bLEYQNPHzEoh8FaB7ppLc:2zKRT+VbBD218N8f0fEYsTPS4B7r |
| Threatray | 9'356 similar samples on MalwareBazaar |
| TLSH | 2DE412B423ADCB28D6FD03B5DCAE710003F4B8956575E3E5D994E24A28E2F944A71B33 |
| Reporter |  abuse_ch |
| Tags: | AgentTesla exe |
abuse_ch
Malspam distributing AgentTesla:HELO: mail.postadns.com
Sending IP: 185.124.84.123
From: 朱君翠 <tracy@adtogroup.com>
Reply-To: 朱君翠 <enagata-corma@asia.com>
Subject: 未付发票付款_Outstanding invoice payments
Attachment: 未付发票付款(Outstanding invoice payments).rar (contains "未付发票付款(Outstanding invoice payments).exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2020-08-27 08:54:08 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 9'346 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
keylogger stealer spyware trojan family:agenttesla evasion
Behaviour
Creates scheduled task(s)
Modifies system certificate store
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.
Threat name:
Farheyt
Score:
0.80
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
Delivery method
Distributed via e-mail attachment
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