MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39240adb79ab0b0b89912abceb1461edbdc7e7b0ebf2b54b49bd64d230e01916. 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


Intelligence 8 IOCs YARA 5 File information Comments 1

SHA256 hash: 39240adb79ab0b0b89912abceb1461edbdc7e7b0ebf2b54b49bd64d230e01916
SHA3-384 hash: 7eaa86382be9e1e7cf95a8ea9bc1855269e5de0e28a450cc653f7f635b1b80e5b010bf94b392e35dd72dba5f31b67ad7
SHA1 hash: c3e36053494dce45ca13bb84dacfb4f325ed9540
MD5 hash: 877d8424f6d09301998cf3840c42dcb9
humanhash: california-yellow-skylark-nitrogen
File name:877d8424f6d09301998cf3840c42dcb9.exe
Download: download sample
Signature AgentTesla
File size:533'504 bytes
First seen:2021-04-30 14:11:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:w9rULN2/9/uaxiaDQGU7P/drcH7H2+h9KBNdYn:/x2/9RTQGUbaHx9Kzda
Threatray 42 similar samples on MalwareBazaar
TLSH E2B4F11022D9DB59D97D5BB5493A41C027F1F546EB26CA6E7E8C11CC8F63A038B22B73
Reporter abuse_ch
Tags:AgentTesla exe Telegram

Intelligence


File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
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 Telegram RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 401418 Sample: pN0fSLX8vx.exe Startdate: 30/04/2021 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 Sigma detected: Scheduled temp file as task from temp location 2->61 63 9 other signatures 2->63 7 pN0fSLX8vx.exe 7 2->7         started        11 tnvLnx.exe 5 2->11         started        14 tnvLnx.exe 4 2->14         started        process3 dnsIp4 45 C:\Users\user\AppData\...\cDuhvBGUluV.exe, PE32 7->45 dropped 47 C:\Users\...\cDuhvBGUluV.exe:Zone.Identifier, ASCII 7->47 dropped 49 C:\Users\user\AppData\Local\...\tmp9AEF.tmp, XML 7->49 dropped 51 C:\Users\user\AppData\...\pN0fSLX8vx.exe.log, ASCII 7->51 dropped 73 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->73 75 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->75 77 Uses schtasks.exe or at.exe to add and modify task schedules 7->77 16 pN0fSLX8vx.exe 17 9 7->16         started        21 schtasks.exe 1 7->21         started        23 pN0fSLX8vx.exe 7->23         started        55 192.168.2.1 unknown unknown 11->55 79 Multi AV Scanner detection for dropped file 11->79 81 Machine Learning detection for dropped file 11->81 83 Injects a PE file into a foreign processes 11->83 25 schtasks.exe 1 11->25         started        27 tnvLnx.exe 2 11->27         started        29 tnvLnx.exe 11->29         started        31 schtasks.exe 14->31         started        33 tnvLnx.exe 14->33         started        file5 signatures6 process7 dnsIp8 53 api.telegram.org 149.154.167.220, 443, 49767, 49768 TELEGRAMRU United Kingdom 16->53 41 C:\Users\user\AppData\Roaming\...\tnvLnx.exe, PE32 16->41 dropped 43 C:\Users\user\...\tnvLnx.exe:Zone.Identifier, ASCII 16->43 dropped 65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->65 67 Tries to steal Mail credentials (via file access) 16->67 69 Tries to harvest and steal ftp login credentials 16->69 71 3 other signatures 16->71 35 conhost.exe 21->35         started        37 conhost.exe 25->37         started        39 conhost.exe 31->39         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.Phonzy
Status:
Malicious
First seen:
2021-04-30 08:39:23 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1228892991:AAGnOp7wTkxrjqNouAdSvxxXn7bVaitffNI/sendDocument
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
SH256 hash:
39240adb79ab0b0b89912abceb1461edbdc7e7b0ebf2b54b49bd64d230e01916
MD5 hash:
877d8424f6d09301998cf3840c42dcb9
SHA1 hash:
c3e36053494dce45ca13bb84dacfb4f325ed9540
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.

Web download

AgentTesla

Executable exe 39240adb79ab0b0b89912abceb1461edbdc7e7b0ebf2b54b49bd64d230e01916

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-30 15:41:28 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection