MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b420aa90dc3b64b0c598ed76edfe8d6b0e16bbbeb3cf1f7e1623a68a673b7f0c. 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 3 File information Comments

SHA256 hash: b420aa90dc3b64b0c598ed76edfe8d6b0e16bbbeb3cf1f7e1623a68a673b7f0c
SHA3-384 hash: 3d8c3ac3550799f350795ae1cdfb4b5145f04a135a4e3418f299f8f4f9923aba9d6e12e324416a6cd81bdf48bb348fc5
SHA1 hash: 0189ba6ab5383eb8e610bab9f5c74baa74873c56
MD5 hash: 37267c634bed925386100d9735ec2096
humanhash: nitrogen-diet-ack-early
File name:7LqmBX04Sd5N7Kl.exe
Download: download sample
Signature AgentTesla
File size:1'111'552 bytes
First seen:2020-12-18 22:16:26 UTC
Last seen:2020-12-18 23:31:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:GmZJlyhAyFmre9ji/Ov1PnvC6HB9KTJ9KTD9KTJ1QNg7zd:LZzosreY/Ov1fvLAqQz
Threatray 1'904 similar samples on MalwareBazaar
TLSH 5735CF3439EA501AF173AF755BE475928BAFF6333B06E45D2490038B4B23E81DE91639
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7LqmBX04Sd5N7Kl.exe
Verdict:
Malicious activity
Analysis date:
2020-12-18 22:18:58 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
Creating a window
Sending a UDP request
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
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
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)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 332422 Sample: 7LqmBX04Sd5N7Kl.exe Startdate: 18/12/2020 Architecture: WINDOWS Score: 100 26 Multi AV Scanner detection for dropped file 2->26 28 Sigma detected: Scheduled temp file as task from temp location 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 9 other signatures 2->32 7 7LqmBX04Sd5N7Kl.exe 9 2->7         started        process3 file4 18 C:\Users\user\AppData\Roaming\HUwHEeq.exe, PE32 7->18 dropped 20 C:\Users\user\...\HUwHEeq.exe:Zone.Identifier, ASCII 7->20 dropped 22 C:\Users\user\AppData\Local\...\tmpCFBD.tmp, XML 7->22 dropped 24 C:\Users\user\...\7LqmBX04Sd5N7Kl.exe.log, ASCII 7->24 dropped 34 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->34 36 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->36 38 Injects a PE file into a foreign processes 7->38 40 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 7->40 11 7LqmBX04Sd5N7Kl.exe 4 7->11         started        14 schtasks.exe 1 7->14         started        signatures5 process6 signatures7 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->42 44 Tries to steal Mail credentials (via file access) 11->44 46 Tries to harvest and steal ftp login credentials 11->46 48 Tries to harvest and steal browser information (history, passwords, etc) 11->48 16 conhost.exe 14->16         started        process8
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-12-18 20:41:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
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
Unpacked files
SH256 hash:
b420aa90dc3b64b0c598ed76edfe8d6b0e16bbbeb3cf1f7e1623a68a673b7f0c
MD5 hash:
37267c634bed925386100d9735ec2096
SHA1 hash:
0189ba6ab5383eb8e610bab9f5c74baa74873c56
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:MALWARE_Win_AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
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.

  
Delivery method
Other

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