MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde. 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: 9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde
SHA3-384 hash: 26f811caa2beb94a00d12681106655914c522780ccc0250d04a831cb63d3869d18f06ab9d51d0911ef274f215ac7748a
SHA1 hash: 5ba98a170cc8cb1830a44dc7cb6f5ecfdc1c49e1
MD5 hash: 21720415138158d30034b4f21abe732d
humanhash: comet-lake-football-pennsylvania
File name:PURCHASE ORDER.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:694'784 bytes
First seen:2020-08-03 17:38:34 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 12288:B0fa36LKfcJzfTi7rwxkKxJH7EY7GY2UNh8PSHelf:ufa3az9jyeCONh8qH
Threatray 10'934 similar samples on MalwareBazaar
TLSH E1E4CE6C7BD0856AF49A0FBA9C3651039D34E80BA81BF38F35F5126C087A79CAD41F56
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: webmail.cyber.net.pk
Sending IP: 203.101.175.37
From: xingtai saipuao import and export trade Co.,ltd <jjhyd@cyber.net.pk>
Subject: RE: PURCHASE ORDER COPY
Attachment: PURCHASE ORDER.zip (contains "PURCHASE ORDER.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38036/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408320
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Moves itself to temp directory
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256395 Sample: PURCHASE ORDER.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Yara detected AgentTesla 2->37 39 Yara detected AntiVM_3 2->39 41 6 other signatures 2->41 6 YYtJku.exe 3 2->6         started        9 PURCHASE ORDER.exe 3 2->9         started        12 YYtJku.exe 2->12         started        process3 file4 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 45 Machine Learning detection for dropped file 6->45 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->47 14 YYtJku.exe 2 6->14         started        29 C:\Users\user\...\PURCHASE ORDER.exe.log, ASCII 9->29 dropped 49 Injects a PE file into a foreign processes 9->49 18 PURCHASE ORDER.exe 2 5 9->18         started        21 PURCHASE ORDER.exe 9->21         started        23 YYtJku.exe 12->23         started        signatures5 process6 dnsIp7 51 Tries to harvest and steal ftp login credentials 14->51 53 Tries to harvest and steal browser information (history, passwords, etc) 14->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->55 31 us2.smtp.mailhostbox.com 208.91.199.223, 49739, 49752, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->31 33 192.168.2.1 unknown unknown 18->33 25 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 18->25 dropped 27 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 18->27 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->57 59 Moves itself to temp directory 18->59 61 Tries to steal Mail credentials (via file access) 18->61 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 17:33:46 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tk2iuu42vwggokoeigqkgkwqea4yajbaxlnejuv7rlwakisv3ppa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'924 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200803-6kkr5x7nla/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
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
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde

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 510785f47db34dc6832001bc98838634731b3d5464936dfdd50957eeca8335e1

AgentTesla

Executable exe 9ab48a539aad8c6729c441a0a32ad02039802420bada44d2bf8aec052255dbde

(this sample)

  
Dropped by
MD5 47dfae20fda85f23887dbfb2f6711050
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38036/
  
Dropped by
SHA256 510785f47db34dc6832001bc98838634731b3d5464936dfdd50957eeca8335e1

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