MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcc4bf949a4bfac011f434497872c13014a35df22719404ce306d7efe905c259. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bcc4bf949a4bfac011f434497872c13014a35df22719404ce306d7efe905c259
SHA3-384 hash: 6a907b9d9797e507e92cb4a6dafa08be34903b618b07e049e1e7fc32bdc68bc343522e5a174edffcfa8250d87b29a46e
SHA1 hash: d6c9f4f65999db2c5c00f6282806fed3154c59a9
MD5 hash: eb52db9a8e65b8f864b7586e8a8d21de
humanhash: red-india-colorado-oxygen
File name:Tax_Notification_6900449581_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:4'231'168 bytes
First seen:2020-07-20 08:59:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 98304:C+6OtBbU3fAD7/7tIR4vz5OxtoX7QBMaXatgVECDD:X/Rzawz5QtoXwXatgWa
Threatray 10'705 similar samples on MalwareBazaar
TLSH 9C1612393A82A81AD53D093384F455C2A6B6E9473E12C71F6DC7139C9F023DF3B4696A
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: [193.8.195.28]
Sending IP: 193.8.195.28
From: DHL_jaejoon.cho <jaejoon.chu@dhl.com>
Reply-To: DHL_jaejoon.cho <jaejoon.chu.dh@dr.com>
Subject: FW: [DHL] Notice on Customs Payment (XXXX9581)
Attachment: Tax_Notification_6900449581_pdf.zip (contains "Tax_Notification_6900449581_pdf.exe")

AgentTesla SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/28843/
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/391143
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 247925 Sample: Tax_Notification_6900449581... Startdate: 20/07/2020 Architecture: WINDOWS Score: 100 36 Antivirus / Scanner detection for submitted sample 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected AgentTesla 2->40 42 4 other signatures 2->42 7 Tax_Notification_6900449581_pdf.exe 5 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\AppData\...\trtsytyerwcgjt.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->30 dropped 32 C:\...\trtsytyerwcgjt.exe:Zone.Identifier, ASCII 7->32 dropped 34 Tax_Notification_6900449581_pdf.exe.log, ASCII 7->34 dropped 14 trtsytyerwcgjt.exe 7->14         started        16 cmd.exe 1 7->16         started        18 trtsytyerwcgjt.exe 1 10->18         started        process5 signatures6 21 AddInProcess32.exe 2 14->21         started        24 reg.exe 1 1 16->24         started        26 conhost.exe 16->26         started        44 Antivirus detection for dropped file 18->44 46 Multi AV Scanner detection for dropped file 18->46 48 Machine Learning detection for dropped file 18->48 process7 signatures8 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->52 54 Creates an autostart registry key pointing to binary in C:\Windows 24->54
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bcc4bf949a4bfac011f434497872c13014a35df22719404ce306d7efe905c259/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-20 04:42:36 UTC
AV detection:
26 of 31 (83.87%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xtcl7fe2jp5maepugrexq4wbgakkgxpse4muathda3l672ifyjmq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'695 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200720-svvt19x33j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bcc4bf949a4bfac011f434497872c13014a35df22719404ce306d7efe905c259

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

zip b81f9db9939e80cecad8a58ab822ccbe64d530c6eb81418280799640dd37dc0b

AgentTesla

Executable exe bcc4bf949a4bfac011f434497872c13014a35df22719404ce306d7efe905c259

(this sample)

  
Dropped by
MD5 4cfb4f1f4476b407404465cdc1b2d279
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/28843/
  
Dropped by
SHA256 b81f9db9939e80cecad8a58ab822ccbe64d530c6eb81418280799640dd37dc0b

Comments