MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 17b4dcf86e88514472b06653ae8560eaf3da47be3785573e9ffecdbaa4bddcb7. 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: 17b4dcf86e88514472b06653ae8560eaf3da47be3785573e9ffecdbaa4bddcb7
SHA3-384 hash: d3dc8eb0455c927abba2d18aea76fe85df6753de56ab64f96d8bc57c26834f85756a80caec487f3959968db0691c03cd
SHA1 hash: 0def4425533212071c870517543b10dd589937f6
MD5 hash: 91263b5237f53ef513dc7d1eda98a4ec
humanhash: lactose-green-asparagus-indigo
File name:Bank Details.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'089'197 bytes
First seen:2020-07-21 18:43:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:6NA3R5drXdtPz0DlHOgvWPbd6Yh2soAY5aRcKX+47l:z5bPwDluaWPN2xA2aa47l
Threatray 9'294 similar samples on MalwareBazaar
TLSH 8D351252F7C144B1E27309325929F720AA7C7A602F30DA2FB7C48D6E9E35581B635B63
Reporter abuse_ch
Tags:AgentTesla exe Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic302-3.consmr.mail.bf2.yahoo.com
Sending IP: 74.6.135.42
From: Sales manager <markwu586@yahoo.com>
Reply-To: Sales manager <markwu586@yahoo.com>
Subject: Fw: Payment Slip
Attachment: Bank Details.uue (contains "Bank Details.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/30362/
Detection(s):
SecuriteInfo.com.Troj.NanoCo_TZ.22029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the %temp% directory
Using the Windows Management Instrumentation requests
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/393684
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 249130 Sample: Bank Details.exe Startdate: 22/07/2020 Architecture: WINDOWS Score: 100 37 smtp.yandex.ru 2->37 39 smtp.yandex.com 2->39 53 Found malware configuration 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected AgentTesla 2->57 59 2 other signatures 2->59 8 Bank Details.exe 23 2->8         started        11 ddmlcapg.pif 2->11         started        14 ddmlcapg.pif 2->14         started        16 ddmlcapg.pif 1 2->16         started        signatures3 process4 file5 35 C:\Users\user\50079812\ddmlcapg.pif, PE32 8->35 dropped 18 ddmlcapg.pif 1 3 8->18         started        79 Writes to foreign memory regions 11->79 81 Allocates memory in foreign processes 11->81 83 Sleep loop found (likely to delay execution) 11->83 22 RegSvcs.exe 11->22         started        85 Injects a PE file into a foreign processes 14->85 25 RegSvcs.exe 14->25         started        27 RegSvcs.exe 10 16->27         started        signatures6 process7 dnsIp8 33 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 18->33 dropped 61 Multi AV Scanner detection for dropped file 18->61 63 Writes to foreign memory regions 18->63 65 Allocates memory in foreign processes 18->65 77 2 other signatures 18->77 29 RegSvcs.exe 10 18->29         started        41 smtp.yandex.ru 22->41 43 smtp.yandex.com 22->43 67 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->67 69 Tries to steal Mail credentials (via file access) 22->69 71 Tries to harvest and steal browser information (history, passwords, etc) 22->71 73 Tries to harvest and steal ftp login credentials 25->73 45 smtp.yandex.ru 27->45 47 smtp.yandex.com 27->47 75 Installs a global keyboard hook 27->75 file9 signatures10 process11 dnsIp12 49 smtp.yandex.ru 77.88.21.158, 49722, 49723, 49724 YANDEXRU Russian Federation 29->49 51 smtp.yandex.com 29->51 87 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->87 89 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 29->89 91 Tries to steal Mail credentials (via file access) 29->91 93 3 other signatures 29->93 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/17b4dcf86e88514472b06653ae8560eaf3da47be3785573e9ffecdbaa4bddcb7/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 18:41:56 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c62nz6dorbiui4vqmzj25bla5lz5ur56g6cvopu773g3vjf53s3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'284 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200721-p7ewy44crj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Loads dropped DLL
Executes dropped EXE
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: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

uue c088fe4ce0f9df55633f922c95d28ae63e67d81ef86ce9c89a97a9ae2a7daf94

AgentTesla

Executable exe 17b4dcf86e88514472b06653ae8560eaf3da47be3785573e9ffecdbaa4bddcb7

(this sample)

  
Dropped by
MD5 6daa83b5c52610f9b74f2d807fed9ad2
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/30362/
  
Dropped by
SHA256 c088fe4ce0f9df55633f922c95d28ae63e67d81ef86ce9c89a97a9ae2a7daf94

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