MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99d5312ed790ae1cc69b6965f33f193863e3f4cec084ddf24b6d3722dd926d8d. 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: 99d5312ed790ae1cc69b6965f33f193863e3f4cec084ddf24b6d3722dd926d8d
SHA3-384 hash: c445e597947abea3696169b1e86dbe83f794a2f3801976f3cb955c62cbe0fa9b50be35ed5d4f51cedc2d9ddbc3957ddb
SHA1 hash: 6345b980e576c947b130c8e79f0748af6515758b
MD5 hash: 369a7128bae6f603d8d37e139beff1e3
humanhash: oranges-romeo-speaker-nineteen
File name:8JVksjPpTQe3cej.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:620'032 bytes
First seen:2020-08-31 09:17:49 UTC
Last seen:Never
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:PKZ0Ra5qMxNpiJHDnuyP6A9cE3hLtfL44wy:SZ0RajN4JjH9TLq4w
Threatray 9'674 similar samples on MalwareBazaar
TLSH A6D412168B9DCF76D0E82FB4F51EB94A87A15C32B948DD1DED4A30EC26753885060E4F
Reporter abuse_ch
Tags:AgentTesla exe Outlook


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: EUR05-AM6-obe.outbound.protection.outlook.com
Sending IP: 40.92.91.46
From: Jose Pelaez <desguacespelaez@hotmail.com>
Subject: Payment-20519953MXC_Invoice AR4964348
Attachment: Payment-inv Pdf.lzh (contains "8JVksjPpTQe3cej.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53336/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
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/455091
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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 dnsIp2 2 Behavior Graph ID: 279920 Sample: 8JVksjPpTQe3cej.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 26 cdn.onenote.net 2->26 30 Found malware configuration 2->30 32 Multi AV Scanner detection for dropped file 2->32 34 Sigma detected: Scheduled temp file as task from temp location 2->34 36 6 other signatures 2->36 8 8JVksjPpTQe3cej.exe 6 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\...\vYSTfXtYJgeLKP.exe, PE32 8->20 dropped 22 C:\Users\user\AppData\Local\...\tmpE781.tmp, XML 8->22 dropped 24 C:\Users\user\...\8JVksjPpTQe3cej.exe.log, ASCII 8->24 dropped 38 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->38 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->42 44 Injects a PE file into a foreign processes 8->44 12 8JVksjPpTQe3cej.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        signatures6 process7 dnsIp8 28 roham.dnswebhost.com 185.159.153.69, 49742, 587 SERVERPARSIR Iran (ISLAMIC Republic Of) 12->28 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->46 48 Tries to steal Mail credentials (via file access) 12->48 50 Tries to harvest and steal ftp login credentials 12->50 52 2 other signatures 12->52 18 conhost.exe 16->18         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99d5312ed790ae1cc69b6965f33f193863e3f4cec084ddf24b6d3722dd926d8d/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 03:17:23 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=thktclwxscxbzru3nfs7gpyzhbr6h5goyccn34slnu3sfxmsnwgq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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b642527e686b781a602fb322e7d34d0f18748778de42a0e3774d9990a71e2c92
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c4d5fab1e5e40cf0377d5eaca0e427d01fcd61495743ea4290d8745163e84e56
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d4eec3387fde66fc5b45135db86b9fcdebcb75e199fe9be1a834d89cac6b9d13
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e738d23963c1001eb3cc3287fd96bacb4a4f073c665c866bc3cadf39d71350e8
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f0e20dc9aafe9043231c48c4de5c58324c9ed4b1cf1ba479a0fbed7c7f0bbb0f
AgentTesla
+ 9'664 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200831-dpw96b7tt6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
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/99d5312ed790ae1cc69b6965f33f193863e3f4cec084ddf24b6d3722dd926d8d

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

rar fed48c890f099eb9fa6868624f305964cb456fbbba0b4c9444c49fafba35bbf5

AgentTesla

Executable exe 99d5312ed790ae1cc69b6965f33f193863e3f4cec084ddf24b6d3722dd926d8d

(this sample)

  
Dropped by
MD5 3f8b1bab104e7add676145dbe3dd4c54
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53336/
  
Dropped by
SHA256 fed48c890f099eb9fa6868624f305964cb456fbbba0b4c9444c49fafba35bbf5

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