MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9
SHA3-384 hash: 557b9c28f9e163a2a3fa22a944c361a531599fb3c89383a93f4753117e024f177eb71904d134ee65a997826d40900e24
SHA1 hash: 81b161ec5ced453eb0a7ac1d25dafb825ff67228
MD5 hash: b878c3a2d2acd700fdc3275ed6557383
humanhash: item-video-romeo-tango
File name:MV LUCKY TIFFANY.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:802'304 bytes
First seen:2020-08-27 08:52:32 UTC
Last seen:2020-08-27 10:09:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:eHEwB2rLSIxej+ZqDuQYdO+R2u8NpQH459GK6pgCcfN4GBYCK3:eD2SOqDwdO+k/QY595hfN4Is
Threatray 9'223 similar samples on MalwareBazaar
TLSH F9050262326DCB09C5FF0F78944CA2148BB86D166C35EB5FB598B3BF257A7910E00762
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: "yuyao@chunan.com.cn" <yuyo@chunan.com.cn>
Subject: MV LUCKY TIFFANY/ V203/ PORT ENQUIRY
Attachment: MV LUCKY TIFFANY.cab (contains "MV LUCKY TIFFANY.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/51705/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.409.21710.10735.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452469
Signature
Binary contains a suspicious time stamp
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)
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 278596 Sample: MV LUCKY TIFFANY.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 7 other signatures 2->43 6 DsWhv.exe 1 2->6         started        9 MV LUCKY TIFFANY.exe 1 2->9         started        12 DsWhv.exe 2->12         started        process3 file4 45 Multi AV Scanner detection for dropped file 6->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 DsWhv.exe 2 6->14         started        29 C:\Users\user\...\MV LUCKY TIFFANY.exe.log, ASCII 9->29 dropped 51 Injects a PE file into a foreign processes 9->51 18 MV LUCKY TIFFANY.exe 2 5 9->18         started        21 MV LUCKY TIFFANY.exe 9->21         started        23 DsWhv.exe 2 12->23         started        signatures5 process6 dnsIp7 31 mail.maihyundai.com 14->31 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->53 55 Tries to steal Mail credentials (via file access) 14->55 57 Tries to harvest and steal ftp login credentials 14->57 59 Tries to harvest and steal browser information (history, passwords, etc) 14->59 33 maihyundai.com 107.180.26.71, 49733, 49745, 587 AS-26496-GO-DADDY-COM-LLCUS United States 18->33 35 mail.maihyundai.com 18->35 25 C:\Users\user\AppData\Roaming\...\DsWhv.exe, PE32 18->25 dropped 27 C:\Users\user\...\DsWhv.exe:Zone.Identifier, ASCII 18->27 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->61 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 08:54:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhhzfypo3itw5lsbf2zcgyqwzlolmnbnnrhghdvdg42jne7wgo4q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'213 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/200827-6t84hyll7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email 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:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9

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

cab 0ea0deca999677cda2359ab9c96fab953db2e2e3a47d7d1194b0f3c37d3f4835

AgentTesla

Executable exe a9cf92e1eeda276eae412eb2236216cadcb6342d6c4e638ea337349693f633b9

(this sample)

  
Dropped by
MD5 408e7eda9ba93ea8144364127a2771df
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51705/
  
Dropped by
SHA256 0ea0deca999677cda2359ab9c96fab953db2e2e3a47d7d1194b0f3c37d3f4835

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