MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 397430a16d115d42056de1dca482e0fd9290ce8cbe6c45a614cac0fc85983a72. 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: 397430a16d115d42056de1dca482e0fd9290ce8cbe6c45a614cac0fc85983a72
SHA3-384 hash: 157223f142220bde1718c9af64a2c1d6ffd2a5b08f799769f50c1d45fb38e9f9dbdb4e83d9ededf0fe90a15e77e42a2d
SHA1 hash: 156d5c6789406b42946d01ff9924b157731142dd
MD5 hash: 8b8285fa83c422b6b412be5d03c6ffa2
humanhash: salami-jupiter-kilo-quiet
File name:New Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:696'320 bytes
First seen:2020-08-03 13:22:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:asLgtsjROk+6F2g3wVk+b6ND+QUz6y0Lt1y0y3EE/0Q+lBAfBH:/gAHJ3Ck++NDRFLt1py3ETl
Threatray 874 similar samples on MalwareBazaar
TLSH 6BE4CE2C7BD09A19F55A4FBE9D3650039D30E84BAD27E38F29F5122C147A79CAC41F26
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: zmail.rfvallianz.com
Sending IP: 203.177.117.142
From: sales05@rfvallianz.com
Subject: NEW ORDER
Attachment: New Order.iso (contains "New Order.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/37858/
Detection(s):
SecuriteInfo.com.Generic.mg.8b8285fa83c422b6.27316.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP 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
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407979
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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: 256224 Sample: New Order.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 60 Yara detected AgentTesla 2->60 62 9 other signatures 2->62 7 bVrBv.exe 3 2->7         started        10 New Order.exe 7 2->10         started        13 bVrBv.exe 2->13         started        process3 file4 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->64 66 Machine Learning detection for dropped file 7->66 68 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->68 15 bVrBv.exe 4 7->15         started        34 C:\Users\user\AppData\...\&startupname&.exe, PE32 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp4C04.tmp, XML 10->36 dropped 38 C:\...\&startupname&.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\...40ew Order.exe.log, ASCII 10->40 dropped 70 Injects a PE file into a foreign processes 10->70 19 New Order.exe 2 7 10->19         started        22 schtasks.exe 1 10->22         started        24 New Order.exe 10->24         started        26 bVrBv.exe 13->26         started        signatures5 process6 dnsIp7 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Tries to steal Mail credentials (via file access) 15->46 48 Tries to harvest and steal ftp login credentials 15->48 50 Tries to harvest and steal browser information (history, passwords, etc) 15->50 42 smtp.privateemail.com 199.193.7.228, 49739, 49741, 49753 NAMECHEAP-NETUS United States 19->42 30 C:\Users\user\AppData\Roaming\...\bVrBv.exe, PE32 19->30 dropped 32 C:\Users\user\...\bVrBv.exe:Zone.Identifier, ASCII 19->32 dropped 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->52 54 Installs a global keyboard hook 19->54 28 conhost.exe 22->28         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/397430a16d115d42056de1dca482e0fd9290ce8cbe6c45a614cac0fc85983a72/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 13:24:12 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hf2dbilncfouebln4hokjaxa7wjjbtumxzweljquzlapzbmyhjza._file
Verdict:
malicious
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AgentTesla
+ 864 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200803-kf9dhmlys2/
Behaviour
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/397430a16d115d42056de1dca482e0fd9290ce8cbe6c45a614cac0fc85983a72

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

iso b1d8a3f59acf0ff87a7254825344ea794aacbbcdd5802b1ee71d55b55828af1b

AgentTesla

Executable exe 397430a16d115d42056de1dca482e0fd9290ce8cbe6c45a614cac0fc85983a72

(this sample)

  
Dropped by
MD5 7d887c80e95e282523b129ac7810d7bb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37858/
  
Dropped by
SHA256 b1d8a3f59acf0ff87a7254825344ea794aacbbcdd5802b1ee71d55b55828af1b

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