MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12. 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: b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12
SHA3-384 hash: 62f0119c7ad679cd56365ca7c3de96ce8204b1692fcbaec60c646f893a1d8fd81811a31cb3fdb8c3d86a38c8be7444a2
SHA1 hash: 680b0c8b2f76e0b47f4d37c75f9b7cc1797f9cce
MD5 hash: 604108d0607c37fef45d876d0f4d834c
humanhash: pluto-illinois-shade-north
File name:QUOTATION.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:593'408 bytes
First seen:2020-08-30 06:28:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:w/rlef+oinJDwjFQ8ko4g21zHInTKjfPoO9kH/bkQqkcxA51:8lyuEFTWgC9bPzwkQqLo1
Threatray 9'241 similar samples on MalwareBazaar
TLSH BCC4121036FD0B49D9E65BF809F9709083B67D3AA62AD24D1C4AB0DE2D32B419351F7B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: gains.hificlouds.com
Sending IP: 131.153.48.114
From: sales@oilmarkntl.com
Subject: RE:OILMARK - INSTRUMENTATION-ELECTRICAL-SAFETY-AUTOMATION SUPPLIER **(QUOTATION)**
Attachment: QUOTATION.zip (contains "QUOTATION.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53024/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
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
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454422
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Modifies the hosts file
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)
Sigma detected: Scheduled temp file as task from temp location
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)
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: 279583 Sample: QUOTATION.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 69 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->69 71 Found malware configuration 2->71 73 Antivirus detection for dropped file 2->73 75 9 other signatures 2->75 8 QUOTATION.exe 7 2->8         started        12 WCPCe.exe 5 2->12         started        14 WCPCe.exe 4 2->14         started        process3 file4 55 C:\Users\user\AppData\Roaming\lHYCzvolJ.exe, PE32 8->55 dropped 57 C:\Users\...\lHYCzvolJ.exe:Zone.Identifier, ASCII 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmpF9A7.tmp, XML 8->59 dropped 61 C:\Users\user\AppData\...\QUOTATION.exe.log, ASCII 8->61 dropped 89 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->89 91 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->91 93 Injects a PE file into a foreign processes 8->93 16 QUOTATION.exe 2 5 8->16         started        21 schtasks.exe 1 8->21         started        95 Antivirus detection for dropped file 12->95 97 Multi AV Scanner detection for dropped file 12->97 99 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 12->99 23 WCPCe.exe 12->23         started        25 schtasks.exe 12->25         started        27 WCPCe.exe 12->27         started        29 schtasks.exe 14->29         started        31 WCPCe.exe 14->31         started        33 WCPCe.exe 14->33         started        signatures5 process6 dnsIp7 63 smtp.ritac-eg.com 16->63 65 us2.smtp.mailhostbox.com 208.91.199.224, 49742, 49758, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->65 49 C:\Users\user\AppData\Roaming\...\WCPCe.exe, PE32 16->49 dropped 51 C:\Windows\System32\drivers\etc\hosts, ASCII 16->51 dropped 53 C:\Users\user\...\WCPCe.exe:Zone.Identifier, ASCII 16->53 dropped 77 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->77 79 Tries to steal Mail credentials (via file access) 16->79 81 Modifies the hosts file 16->81 35 reg.exe 16->35         started        37 conhost.exe 21->37         started        67 smtp.ritac-eg.com 23->67 83 Tries to harvest and steal ftp login credentials 23->83 85 Tries to harvest and steal browser information (history, passwords, etc) 23->85 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->87 39 reg.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 29->43         started        file8 signatures9 process10 process11 45 conhost.exe 35->45         started        47 conhost.exe 39->47         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-29 09:52:15 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6tpnggvloa4c4kivma2uobuk4lupcgsisgwu3py4dm5wpdx3uja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'231 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/200830-ncykfjgf4n/
Behaviour
Creates scheduled task(s)
Modifies registry key
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
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12

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 7180c696cd1ba7b42913cbbcdbdb52631e568308d94cf7b36da1fed6c00b9278

AgentTesla

Executable exe b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12

(this sample)

  
Dropped by
MD5 32bb42e3fc22a36b1ea958e0601fe076
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7180c696cd1ba7b42913cbbcdbdb52631e568308d94cf7b36da1fed6c00b9278
Cape
Cape
https://www.capesandbox.com/analysis/53024/

Comments