MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793. 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: e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793
SHA3-384 hash: 20c7a6e9bd00e375e0b3e8777a178dc70d8f4eb89d4a1a3b38d8d7ccea2521edfecfeb2ff9c49ea2ce8b9c005fc90cf7
SHA1 hash: ca8d39e82dd534ceb972ecb0231d081c3c635109
MD5 hash: 26972eb886ce4e142062295d12108502
humanhash: fifteen-emma-floor-five
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:723'968 bytes
First seen:2020-08-03 12:47:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:Jk34m81Qf0pln5NgeWCRjFtVz0EYMKimMDqyz1jmy5s6e:iI58eWCRjFDz0wMM+7y
Threatray 10'850 similar samples on MalwareBazaar
TLSH 11F4CE1C3BE0865AF56A0FBA9C365503AD34F44BA917F38F26F5122C587A79CAC40F52
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: PURCHASE ORDER
Attachment: Purchase Order.iso (contains "Purchase Order.exe")

AgentTesla SMTP exfil server:
anemone.myhostpl.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/37807/
Detection(s):
SecuriteInfo.com.Generic.mg.26972eb886ce4e14.27026.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/407883
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
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
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: 256173 Sample: Purchase Order.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 Yara detected AgentTesla 2->56 58 7 other signatures 2->58 7 bVrBv.exe 3 2->7         started        10 Purchase Order.exe 7 2->10         started        13 bVrBv.exe 2->13         started        process3 file4 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->60 62 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->62 64 Injects a PE file into a foreign processes 7->64 66 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 7->66 15 bVrBv.exe 4 7->15         started        34 C:\Users\user\AppData\Local\...\tmp3B3B.tmp, XML 10->34 dropped 36 C:\Users\user\AppData\...\&startupname&.exe, PE32 10->36 dropped 19 Purchase Order.exe 2 7 10->19         started        22 schtasks.exe 1 10->22         started        24 Purchase Order.exe 10->24         started        26 bVrBv.exe 13->26         started        signatures5 process6 dnsIp7 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Tries to steal Mail credentials (via file access) 15->42 44 Tries to harvest and steal ftp login credentials 15->44 46 Tries to harvest and steal browser information (history, passwords, etc) 15->46 38 smtp.privateemail.com 199.193.7.228, 49758, 49760, 587 NAMECHEAP-NETUS United States 19->38 30 C:\Users\user\AppData\Roaming\...\bVrBv.exe, PE32 19->30 dropped 32 C:\Users\user\...\bVrBv.exe:Zone.Identifier, ASCII 19->32 dropped 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->48 50 Installs a global keyboard hook 19->50 28 conhost.exe 22->28         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 12:49:10 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5earh3hinckudbked6jz5e6kwt4iorssshtca5j3ieoqimjrw6jq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'840 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-xv3l1t32z6/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
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:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793

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 0663564bdb76782bdd5330371fa02603037c2e30474407c42772158a5e9139a4

AgentTesla

Executable exe e90113ece868954185441f939e93cab4f887465291e620753b411d043131b793

(this sample)

  
Dropped by
MD5 3aea93e08db5cf93d76f94921259baa3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37807/
  
Dropped by
SHA256 0663564bdb76782bdd5330371fa02603037c2e30474407c42772158a5e9139a4

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