MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5f17f4bfb15b8d739c235665d26edfb38cf54e860848de6fc08067bfe7ce865. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments

SHA256 hash: a5f17f4bfb15b8d739c235665d26edfb38cf54e860848de6fc08067bfe7ce865
SHA3-384 hash: 01584472188e37e3ae5c10d70e00823298ef283f99ca10f2411c96242ebb64fb1121d74e057ba1ba48f2945c6242d855
SHA1 hash: 4eddb1fdf7a5629e5438b2705cd5331dd7d23afe
MD5 hash: d7dbd102a092681c0c17409657cd0779
humanhash: triple-sierra-shade-massachusetts
File name:Remittance _Advice_10_08_21.exe
Download: download sample
Signature AgentTesla
File size:818'176 bytes
First seen:2021-08-11 03:21:33 UTC
Last seen:2021-08-11 06:02:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:C4zJHK7zOqTMLFuju2VApJmlEYoFpkNgtHc3TFI2DubyYxO3rhErFBva/:JzE6qMLsJ4EXimKcFIXyTG/va
Threatray 8'237 similar samples on MalwareBazaar
TLSH T1C105022336D0C605D03D17F4846B9105BBF5EC058747EA2D6C85FAAA8ABBA8CC772753
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
263
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Remittance _Advice_10_08_21.exe
Verdict:
Malicious activity
Analysis date:
2021-08-11 03:22:08 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
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
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 array initializations
Found malware configuration
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 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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-08-10 15:56:28 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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:
3d9ac9eda5ee960b5325a4d2c86e78bd5a2717e9e15aeb14cd8d8a3c19013dac
MD5 hash:
c6f5240c54e421628740b2b836f3bbe0
SHA1 hash:
e7b3db3d2b27468783ccca9043c2ac26b91aed2a
SH256 hash:
78c72b2aaef8406a8cc29c377d2cbd49cc48254a49a168ba37c7f18ea8873987
MD5 hash:
9495c620da583096d65ced9d421487c3
SHA1 hash:
5250caa34edea6a989b1273a28ed76ce50fac317
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
SH256 hash:
a5f17f4bfb15b8d739c235665d26edfb38cf54e860848de6fc08067bfe7ce865
MD5 hash:
d7dbd102a092681c0c17409657cd0779
SHA1 hash:
4eddb1fdf7a5629e5438b2705cd5331dd7d23afe
Malware family:
Agent Tesla v3
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
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 a5f17f4bfb15b8d739c235665d26edfb38cf54e860848de6fc08067bfe7ce865

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

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