MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a49901cf034ced81b286e6873c9500bc10589dd4dadbecff02173d5142e232d8. 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: 12


Intelligence 12 IOCs YARA 11 File information Comments

SHA256 hash: a49901cf034ced81b286e6873c9500bc10589dd4dadbecff02173d5142e232d8
SHA3-384 hash: 6bb6e507b0745380d391a35553e66c494ae66fc043f660f02209a56b58f9e8c7e984292960463e3602be761e42504e24
SHA1 hash: e2607d03b08ff3c29c2f22cd1efdd9825268d56d
MD5 hash: 0f86f7419d65a30776bf05202f815249
humanhash: spaghetti-equal-beer-diet
File name:BL-pdf.exe
Download: download sample
Signature AgentTesla
File size:3'302'400 bytes
First seen:2021-05-06 11:37:04 UTC
Last seen:2021-05-06 12:58:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:wCkqujqPN9Kgi7+bILhJ5OBzw4GUiKiaRmKw0EGCAt9nYeErbr3pWP9LeAznOykr:Sv
Threatray 11'108 similar samples on MalwareBazaar
TLSH ACE5A0B693BEE565F4E93F28915573831E227FF0613290A407C1672AD6B04909CFCBB6
Reporter cocaman
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
6
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Creating a file
Creating a window
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:
MALICIOUS
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 very large strings
Contains functionality to hide a thread from the debugger
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
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: 405865 Sample: BL-pdf.exe Startdate: 06/05/2021 Architecture: WINDOWS Score: 100 69 Found malware configuration 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 Yara detected AgentTesla 2->73 75 2 other signatures 2->75 7 BL-pdf.exe 3 2->7         started        10 NewApp.exe 3 2->10         started        12 NewApp.exe 2->12         started        process3 signatures4 77 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->79 81 Contains functionality to register a low level keyboard hook 7->81 89 2 other signatures 7->89 14 BL-pdf.exe 2 9 7->14         started        19 WerFault.exe 24 9 7->19         started        21 cmd.exe 1 7->21         started        83 Multi AV Scanner detection for dropped file 10->83 85 Machine Learning detection for dropped file 10->85 87 Hides threads from debuggers 10->87 23 NewApp.exe 10->23         started        25 cmd.exe 10->25         started        27 NewApp.exe 10->27         started        29 WerFault.exe 10->29         started        31 cmd.exe 12->31         started        33 3 other processes 12->33 process5 dnsIp6 53 mail.soonlogistics.com 103.17.211.69, 49728, 49729, 49738 IPSERVERONE-AS-APIPServerOneSolutionsSdnBhdMY Malaysia 14->53 47 C:\Users\user\AppData\Roaming\...47ewApp.exe, PE32 14->47 dropped 49 C:\Users\user\...49ewApp.exe:Zone.Identifier, ASCII 14->49 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->57 59 Tries to steal Mail credentials (via file access) 14->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->61 63 Installs a global keyboard hook 14->63 55 192.168.2.1 unknown unknown 19->55 51 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->51 dropped 35 conhost.exe 21->35         started        37 timeout.exe 1 21->37         started        65 Tries to harvest and steal ftp login credentials 23->65 67 Tries to harvest and steal browser information (history, passwords, etc) 23->67 39 conhost.exe 25->39         started        41 timeout.exe 25->41         started        43 conhost.exe 31->43         started        45 timeout.exe 31->45         started        file7 signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-06 02:02:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
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
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
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
Unpacked files
SH256 hash:
e08b645d0d51d998c011b2468aee866682360312967e0b5d8b85aad3fd534981
MD5 hash:
035699778f5330abcbdd667660d89d57
SHA1 hash:
f7e750691ad5e02fdb99b97c71c1ad779364ea67
SH256 hash:
69598f566ca877d87e1c57129f4d5bd222d4866d00cb9bb84dcfa2eee71f9c5d
MD5 hash:
6fe732249c95fa0371961005cca7a564
SHA1 hash:
a44f855e06c6f14e2d715700b7eb0b2b22cd486f
Detections:
win_agent_tesla_w1
SH256 hash:
a49901cf034ced81b286e6873c9500bc10589dd4dadbecff02173d5142e232d8
MD5 hash:
0f86f7419d65a30776bf05202f815249
SHA1 hash:
e2607d03b08ff3c29c2f22cd1efdd9825268d56d
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 a49901cf034ced81b286e6873c9500bc10589dd4dadbecff02173d5142e232d8

(this sample)

Comments