MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e99f125d74a933c143c44cd0af298bf2e88502dec6cc0cedde0abc17644c4f5f. 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 12 File information Comments

SHA256 hash: e99f125d74a933c143c44cd0af298bf2e88502dec6cc0cedde0abc17644c4f5f
SHA3-384 hash: e956277741b3d375b8b561e64d99b974fe423fa71da554d14a3f284519423d0c3443c391efc730591c3fa4f4c645c758
SHA1 hash: b4ed2ccc7f0a902194797a4977b93e88f7ddeaf7
MD5 hash: 82e40f002db1c0cf865fec8093da41ae
humanhash: black-two-harry-five
File name:210525_332641-pdf.exe
Download: download sample
Signature AgentTesla
File size:2'280'096 bytes
First seen:2021-05-27 05:34:30 UTC
Last seen:2021-05-28 08:08:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 192:C3w1sN7LfzuyAu/DWP8n1kLhCdjNiYOvzgR6SQznmeoARk0Mu0MHNhZz2VXdKOTk:YwCNPfztAugMIpHhp5
Threatray 11'121 similar samples on MalwareBazaar
TLSH FCB55A3043A99B9E75F323D08085B59E1EA6EFF083BB5586A6121777CE312194FE4336
Reporter cocaman
Tags:AgentTesla exe signed

Code Signing Certificate

Organisation:55aabmxaw65528b32f9b87E2d9b46d
Issuer:55aabmxaw65528b32f9b87E2d9b46d
Algorithm:sha256WithRSAEncryption
Valid from:2021-05-26T22:40:01Z
Valid to:2022-05-26T22:40:01Z
Serial number: ca0ce25f6cc94db78bfcc477c25d5f54
Thumbprint Algorithm:SHA256
Thumbprint: e6e4d15707c73600c1bc7798838aeb8887852907e6add1093b730def703d6a7c
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
4
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
210525_332641-pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-27 05:40:54 UTC
Tags:
keylogger stealer agenttesla

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

Behaviour
Unauthorized injection to a recently created process
Sending a UDP request
Creating a window
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
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 method to dynamically call methods (often used by packers)
.NET source code contains very large strings
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)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 425418 Sample: 210525_332641-pdf.exe Startdate: 27/05/2021 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected AgentTesla 2->57 59 3 other signatures 2->59 6 210525_332641-pdf.exe 3 2->6         started        10 NewApp.exe 2 2->10         started        12 NewApp.exe 3 2->12         started        process3 file4 31 C:\Users\user\...\210525_332641-pdf.exe.log, ASCII 6->31 dropped 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->63 65 Injects a PE file into a foreign processes 6->65 14 210525_332641-pdf.exe 2 9 6->14         started        19 210525_332641-pdf.exe 6->19         started        21 210525_332641-pdf.exe 6->21         started        23 210525_332641-pdf.exe 6->23         started        25 NewApp.exe 6 10->25         started        27 NewApp.exe 10->27         started        67 Multi AV Scanner detection for dropped file 12->67 69 Machine Learning detection for dropped file 12->69 29 NewApp.exe 2 12->29         started        signatures5 process6 dnsIp7 37 mail.soonlogistics.com 103.17.211.69, 49759, 49765, 49768 IPSERVERONE-AS-APIPServerOneSolutionsSdnBhdMY Malaysia 14->37 39 192.168.2.1 unknown unknown 14->39 33 C:\Users\user\AppData\Roaming\...33ewApp.exe, PE32 14->33 dropped 35 C:\Users\user\...35ewApp.exe:Zone.Identifier, ASCII 14->35 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 43 Installs a global keyboard hook 14->43 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->45 47 Tries to steal Mail credentials (via file access) 25->47 49 Tries to harvest and steal ftp login credentials 25->49 51 Tries to harvest and steal browser information (history, passwords, etc) 25->51 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-27 05:35:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
15 of 46 (32.61%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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.

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_extracted_bin
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:agent_tesla_2019
Author:jeFF0Falltrades
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
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_AgentTeslaV2
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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

AgentTesla

Executable exe e99f125d74a933c143c44cd0af298bf2e88502dec6cc0cedde0abc17644c4f5f

(this sample)

Comments