MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8cca0743895e1e92100e777ed334bd363ca2d2edfe734f7754df0e75d4d36c9. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments

SHA256 hash: a8cca0743895e1e92100e777ed334bd363ca2d2edfe734f7754df0e75d4d36c9
SHA3-384 hash: 2da79a590434086f9a4e4ef2cf2ac4cc8275382052f8bfd0b09b472f4edbb2da67b890b51f4418e140a854b0a61dd435
SHA1 hash: bd4e0c81e977f925acd21e433f27a25afa1702c7
MD5 hash: 6cac919dc7afd8b3c18cf143b805275e
humanhash: beryllium-winter-fruit-saturn
File name:Documents and Details.exe
Download: download sample
Signature AgentTesla
File size:732'160 bytes
First seen:2021-04-30 07:20:11 UTC
Last seen:2021-04-30 08:05:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:Ma4SwYx6PplUkkEINk3VhiN+c9Si1NcwYIHkEv4Uv6pGNdY6SM+WU2ZRiUqjzEc3:UPhlZhINk3Vh4D1JEEv4E6+dHSbMZRit
Threatray 4'329 similar samples on MalwareBazaar
TLSH 4FF4120417E8EF66E97D77782836224413F9F85AE325D23EBDD611C96627E808F42783
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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 very large array initializations
Allocates memory in foreign processes
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 401042 Sample: Documents and Details.exe Startdate: 30/04/2021 Architecture: WINDOWS Score: 100 31 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->31 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 10 other signatures 2->37 7 Documents and Details.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\jVNSwjRmBQFI.exe, PE32 7->19 dropped 21 C:\Users\...\jVNSwjRmBQFI.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp8AF1.tmp, XML 7->23 dropped 25 C:\Users\...\Documents and Details.exe.log, ASCII 7->25 dropped 39 Writes to foreign memory regions 7->39 41 Allocates memory in foreign processes 7->41 43 Injects a PE file into a foreign processes 7->43 11 RegSvcs.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 us-east-1.route-1000.000webhost.awex.io 145.14.144.209, 21, 39094, 49758 AWEXUS Netherlands 11->27 29 files.000webhost.com 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 3 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-04-30 04:44:36 UTC
AV detection:
8 of 47 (17.02%)
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 WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
SH256 hash:
a8cca0743895e1e92100e777ed334bd363ca2d2edfe734f7754df0e75d4d36c9
MD5 hash:
6cac919dc7afd8b3c18cf143b805275e
SHA1 hash:
bd4e0c81e977f925acd21e433f27a25afa1702c7
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:silentbuilder_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
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 a8cca0743895e1e92100e777ed334bd363ca2d2edfe734f7754df0e75d4d36c9

(this sample)

  
Delivery method
Distributed via e-mail attachment

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