MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f871f3642191d04e4fe20f022f738d89b3ad90b531cef6adde91d10f257431d. 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 4 File information Comments

SHA256 hash: 6f871f3642191d04e4fe20f022f738d89b3ad90b531cef6adde91d10f257431d
SHA3-384 hash: f2860af56fb72a90f0d33a0dc13ef762d32284825337fbe1af180872ca08a90e52e3700c8fc687169cd380667b6c8599
SHA1 hash: 5e0b47ed45f59c54d310e6c7a95b607e3f56c037
MD5 hash: d7916b3de5a38f3e5b6fdd8dde0cedff
humanhash: march-zulu-river-seven
File name:INV01542.exe
Download: download sample
Signature AgentTesla
File size:1'136'128 bytes
First seen:2021-06-02 05:31:57 UTC
Last seen:2021-06-02 07:00:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:obIl36vWAFeoRgxA7SqYbsprhekui8X87Km0r:o8l3uFeoRgmGbs1Aix
Threatray 5'483 similar samples on MalwareBazaar
TLSH 4A3538AA31FC31EFD457CA3589551D64AF203E76571BC50F902339E8AA3CF86CE119A2
Reporter cocaman
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV01542.exe
Verdict:
Malicious activity
Analysis date:
2021-06-02 05:35:43 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
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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.adwa.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
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 428013 Sample: INV01542.exe Startdate: 02/06/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 7 other signatures 2->53 7 INV01542.exe 6 2->7         started        11 HjYArO.exe 2 2->11         started        13 HjYArO.exe 1 2->13         started        process3 file4 29 C:\Users\user\AppData\...\bLbkdSreXKGJ.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmpC120.tmp, XML 7->31 dropped 33 C:\Users\user\AppData\...\INV01542.exe.log, ASCII 7->33 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 7->55 57 Writes to foreign memory regions 7->57 59 Injects a PE file into a foreign processes 7->59 15 RegSvcs.exe 2 4 7->15         started        19 RegSvcs.exe 7->19         started        21 schtasks.exe 1 7->21         started        23 conhost.exe 11->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 35 C:\Users\user\AppData\Roaming\...\HjYArO.exe, PE32 15->35 dropped 37 C:\Windows\System32\drivers\etc\hosts, ASCII 15->37 dropped 39 Modifies the hosts file 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->45 27 conhost.exe 21->27         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Status:
Malicious
First seen:
2021-06-01 11:33:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
72
AV detection:
13 of 29 (44.83%)
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
Drops file in Drivers directory
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: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_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.

Malspam

AgentTesla

Executable exe 6f871f3642191d04e4fe20f022f738d89b3ad90b531cef6adde91d10f257431d

(this sample)

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