MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 639c8ee41234dcab34f5b8b53650f5e8ffaf78d50ccbb1ee807b62c26be770af. 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
| SHA256 hash: | 639c8ee41234dcab34f5b8b53650f5e8ffaf78d50ccbb1ee807b62c26be770af |
|---|---|
| SHA3-384 hash: | f6edf87c6b99f92f1ab4c7f859b0c18939f1676614c04935feddd47c3d9f9df6473a5978c0d8d4cefcbee47a50ae5032 |
| SHA1 hash: | ec33db76466c398d0c4ab816f6345f2ebd25e8c5 |
| MD5 hash: | 937316c0ab6b24b3f80323fc65d6170f |
| humanhash: | shade-quiet-ink-arizona |
| File name: | EX771260331787.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 603'136 bytes |
| First seen: | 2020-08-17 06:44:00 UTC |
| Last seen: | 2020-08-17 08:28:02 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:Ae4EcmZHAFaxmVmie9bngPjzYTIR19s85oaARbL4KY9g7FZJZsP:V4EcmZHAFaxmVmie9bngPjp4HHzq |
| Threatray | 10'644 similar samples on MalwareBazaar |
| TLSH | ADD4695B789CE39ED2D58EB97430993427925F2B05169903BCEBFDAC63E86DD6D000C2 |
| Reporter |  abuse_ch |
| Tags: | AgentTesla exe FedEx |
abuse_ch
Malspam distributing AgentTesla:HELO: server0.seedsindia.co
Sending IP: 192.236.161.50
From: FedEx Shipping Documents <office@seedsindia.co>
Subject: FedEx Shipping Documents
Attachment: EX771260331787.z (contains "EX771260331787.exe")
AgentTesla SMTP exfil server:
mail.privateemail.com:587
Intelligence
File Origin
# of uploads :
2
# of downloads :
67
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Detection:
agenttesla
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-17 01:58:14 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 10'634 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
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
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
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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