MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecec6bc15469d091bef2e4d0e0c541cac2dfcb8b21f5af5347327caa7159c97d. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ecec6bc15469d091bef2e4d0e0c541cac2dfcb8b21f5af5347327caa7159c97d
SHA3-384 hash: f9d3ae3b62fc41d701617ea16099e422ec755c0add231868eeb306ff87aa5fc619a3b2e22d345a0a9fdfc2aa639041e5
SHA1 hash: e77f0a6a54a63fc8a7b596ab9a3099e346321eab
MD5 hash: 9e343e02b5cc10670c3e685258397c72
humanhash: summer-summer-lake-enemy
File name:POBA205783.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:563'200 bytes
First seen:2020-07-28 14:12:56 UTC
Last seen:2020-07-28 15:02:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:oyYKba++uSP926MChPFdfdyORfdnNf3KkXAf:sKba++us91MCh/EORfdn1
Threatray 10'606 similar samples on MalwareBazaar
TLSH 61C4EF0521600B5FC72B96B43023E1F01227E499EB61EA7B9D8FE0A718E26FD75C3657
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.24january.ro
Sending IP: 5.2.182.144
From: "Pavel SÎRBU" <psirbu@basadoro.md>@mail.24january.ro
Subject: BASADORO AGRATEH S.R.L.: Pre Season PO:BA205783
Attachment: POBA205783.IMG (contains "POBA205783.exe")

AgentTesla SMTP exfil server:
smtp.yandex.ru:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33770/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.52692.30480.23910.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/400537
Signature
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
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 252627 Sample: POBA205783.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 32 Multi AV Scanner detection for dropped file 2->32 34 Sigma detected: Scheduled temp file as task from temp location 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 6 other signatures 2->38 7 POBA205783.exe 7 2->7         started        11 wuapihost.exe 2->11         started        process3 file4 24 C:\Users\user\AppData\...\&startupname&.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\Local\...\tmp1618.tmp, XML 7->26 dropped 28 C:\...\&startupname&.exe:Zone.Identifier, ASCII 7->28 dropped 30 C:\Users\user\AppData\...\POBA205783.exe.log, ASCII 7->30 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->42 44 Injects a PE file into a foreign processes 7->44 13 POBA205783.exe 2 7->13         started        16 schtasks.exe 1 7->16         started        18 POBA205783.exe 7->18         started        20 POBA205783.exe 7->20         started        signatures5 process6 signatures7 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->46 48 Tries to steal Mail credentials (via file access) 13->48 50 Tries to harvest and steal ftp login credentials 13->50 52 Tries to harvest and steal browser information (history, passwords, etc) 13->52 22 conhost.exe 16->22         started        process8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ecec6bc15469d091bef2e4d0e0c541cac2dfcb8b21f5af5347327caa7159c97d/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 07:13:32 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5twgxqkunhijdpxs4tiobrkbzlbn7s4leh226u2hgj6ku4kzzf6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'596 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200728-v48wrzrw12/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Program crash
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ecec6bc15469d091bef2e4d0e0c541cac2dfcb8b21f5af5347327caa7159c97d

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_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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

img d029e28eba1b1b452af0e14d7774454f7eb361edbed48d3cbc61945c7c7af1ec

AgentTesla

Executable exe ecec6bc15469d091bef2e4d0e0c541cac2dfcb8b21f5af5347327caa7159c97d

(this sample)

  
Dropped by
MD5 a88a17ad363fa3f5731186de9de1aeeb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/33770/
  
Dropped by
SHA256 d029e28eba1b1b452af0e14d7774454f7eb361edbed48d3cbc61945c7c7af1ec

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