MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ffd9ccd21638268b51e34279dbaf228ff9ba166f704317a6d57b3ac91a65a3e. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash: 1ffd9ccd21638268b51e34279dbaf228ff9ba166f704317a6d57b3ac91a65a3e
SHA3-384 hash: 173a7f2c192850e05577632723caf367c46d7d96656436d25701d4aa673e9bd9fb150413bbd12a2b8346d1baeb49e2c8
SHA1 hash: e272ec1729e886fb39aabb44b9a6fba03eca82a7
MD5 hash: bc3b65b1f975485f7cde9091ae90832e
humanhash: bulldog-finch-bulldog-lamp
File name:2021190411466.exe
Download: download sample
Signature AgentTesla
File size:499'200 bytes
First seen:2021-04-19 05:02:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:SqtZMc7gS6kCZ2J2HpycwcT2A7KCdfzAIQKhsLbG8WkkHaqfzGFNVabk19Ywiz:xtZdgbYJ2ocwi17L8WhsLvbkHPf8C++
Threatray 4'154 similar samples on MalwareBazaar
TLSH BDB4125D7B1AA232E455783107D1E3204BB6ED40FC22DB87FADA3A9E1F3A0D154217A7
Reporter Anonymous
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2021190411466.exe
Verdict:
Malicious activity
Analysis date:
2021-04-19 04:57:33 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a service
Deleting a recently created file
Creating a file
Creating a window
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 392008 Sample: 2021190411466.exe Startdate: 19/04/2021 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected AgentTesla 2->46 48 4 other signatures 2->48 8 2021190411466.exe 18 8 2->8         started        process3 dnsIp4 38 www.yoursite.com 172.67.133.191, 443, 49730, 49731 CLOUDFLARENETUS United States 8->38 40 yoursite.com 8->40 30 C:\Users\user\AppData\...\2021190411466.exe, PE32 8->30 dropped 32 C:\...\2021190411466.exe:Zone.Identifier, ASCII 8->32 dropped 34 C:\Users\user\...\2021190411466.exe.log, ASCII 8->34 dropped 36 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->36 dropped 50 Writes to foreign memory regions 8->50 52 Allocates memory in foreign processes 8->52 54 Injects a PE file into a foreign processes 8->54 13 2021190411466.exe 2 8->13         started        16 wscript.exe 1 8->16         started        18 svchost.exe 1 8->18         started        20 2 other processes 8->20 file5 signatures6 process7 signatures8 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->56 58 Machine Learning detection for dropped file 13->58 60 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 13->60 62 Wscript starts Powershell (via cmd or directly) 16->62 64 Adds a directory exclusion to Windows Defender 16->64 22 powershell.exe 26 16->22         started        24 AdvancedRun.exe 20->24         started        26 AdvancedRun.exe 20->26         started        process9 process10 28 conhost.exe 22->28         started       
Gathering data
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla Payload
Nirsoft
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:Telegram_Exfiltration_Via_Api
Author:lsepaolo
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments