MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 687d488ec56a3792b20b91f3f94cb4b733eb580ddb9fe5da9e6a3552b9ec15b0. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: 687d488ec56a3792b20b91f3f94cb4b733eb580ddb9fe5da9e6a3552b9ec15b0
SHA3-384 hash: 2763a5577bf9ee33eefca8d9faecf1313de9b6457c39e051ffdf393683ad296acff932f09160adc71da171fff5e91e69
SHA1 hash: bb601153e8a39f9cbd692b665c5e49903a1948eb
MD5 hash: 493295119e318b6bfee6db467d032aaa
humanhash: tango-july-winner-india
File name:Remittance Advice MT103.exe
Download: download sample
Signature AgentTesla
File size:661'397 bytes
First seen:2023-03-14 20:21:27 UTC
Last seen:2023-03-14 21:30:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:/YEJuBz5Hca0RAuuQqx0uxgZ4CV3hg6CxDuX4LE3HP0egepewPIb0fRRL5cOe:/YE4VHUGuuQqiVHVx+x24regeJPW0f30
Threatray 1'287 similar samples on MalwareBazaar
TLSH T151E4230577E2C861E0FB2632AE25893B2F5545036A284B0F57412BDFBDA4671ED4E3B3
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Remittance Advice MT103.exe
Verdict:
Malicious activity
Analysis date:
2023-03-14 20:21:46 UTC
Tags:
autoit

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

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll
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:
92 / 100
Signature
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 826597 Sample: Remittance_Advice_MT103.exe Startdate: 14/03/2023 Architecture: WINDOWS Score: 92 33 Multi AV Scanner detection for submitted file 2->33 35 Yara detected AgentTesla 2->35 37 Machine Learning detection for sample 2->37 7 Remittance_Advice_MT103.exe 20 2->7         started        10 nwsclhqav.exe 2->10         started        process3 file4 23 C:\Users\user\AppData\...\vnpofvkwvv.exe, PE32 7->23 dropped 13 vnpofvkwvv.exe 1 2 7->13         started        47 Machine Learning detection for dropped file 10->47 signatures5 process6 file7 25 C:\Users\user\AppData\...\nwsclhqav.exe, PE32 13->25 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->49 51 May check the online IP address of the machine 13->51 53 Machine Learning detection for dropped file 13->53 55 2 other signatures 13->55 17 vnpofvkwvv.exe 15 2 13->17         started        21 vnpofvkwvv.exe 13->21         started        signatures8 process9 dnsIp10 27 api.ipify.org 17->27 29 api4.ipify.org 104.237.62.211, 443, 49695 WEBNXUS United States 17->29 31 us2.smtp.mailhostbox.com 208.91.199.225, 49696, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->31 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->39 41 Tries to steal Mail credentials (via file / registry access) 17->41 43 Tries to harvest and steal browser information (history, passwords, etc) 17->43 signatures11 45 May check the online IP address of the machine 27->45
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-03-13 00:28:54 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
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:
f71ecefed9675d622c0872f7ffa69a25b9d8612c2ef6e39da318666de764baa7
MD5 hash:
c320351da36043b4dd98d5154e89a8fe
SHA1 hash:
b90913f5151ad0f3415900df5ab497cdfd94cf50
SH256 hash:
454f435c6d558c68b321bf9205602ee1842e8697110697aab1b4577eccbf0c0d
MD5 hash:
40ec17f2b9d06e581b506bd960ad9c42
SHA1 hash:
7957705a0f4dcd26bc620c5c82e33edbc5ba3c71
SH256 hash:
e439f02b72a882498d512689f380e1323c4d8342578fe8608e81061cf4a8aee1
MD5 hash:
3d90ab79b9719aded136b7cd437ebb21
SHA1 hash:
dbec6e868a293cb0bd58d35191b1423ab8942384
SH256 hash:
687d488ec56a3792b20b91f3f94cb4b733eb580ddb9fe5da9e6a3552b9ec15b0
MD5 hash:
493295119e318b6bfee6db467d032aaa
SHA1 hash:
bb601153e8a39f9cbd692b665c5e49903a1948eb
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:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

Comments