MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c9d77531fafcb6b976656bea2a0e647688a049499956979b6d121640c6b29ab. 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: 1c9d77531fafcb6b976656bea2a0e647688a049499956979b6d121640c6b29ab
SHA3-384 hash: 15e4e6f41989a15d2043d9c4c4642f1c0572dc5d4638e51f4049fe4b4ef3f01a941533c2592924f00e5ed6fb2de49a1b
SHA1 hash: ad844034312b739d3a743b59e2ab8d12c76216a4
MD5 hash: d107d0aa7a5ddea2663d76f915e82625
humanhash: quebec-robert-jupiter-sink
File name:d107d0aa7a5ddea2663d76f915e82625.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:603'648 bytes
First seen:2020-07-31 06:56:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:84swKCwNaNcH8u3cRWvg9mkDSjGY+DWUmMBWtHXK8zBtAnuGWdMiPmu12vgZiKJ+:8gwNaTb994c3cXKqAu3GHFKJ0GJus
Threatray 10'660 similar samples on MalwareBazaar
TLSH 37D4AE395748AF52E53F8B799020601097F5EC23CB26FA8A7CD6B0ED5CBBF124721661
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35866/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/404613
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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: 254536 Sample: 7RZ41wuJrl.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Yara detected AgentTesla 2->37 39 Yara detected AntiVM_3 2->39 41 2 other signatures 2->41 6 dutch.exe 5 2->6         started        9 7RZ41wuJrl.exe 5 2->9         started        12 dutch.exe 4 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 dutch.exe 4 6->14         started        31 C:\Users\user\AppData\...\7RZ41wuJrl.exe.log, ASCII 9->31 dropped 49 Injects a PE file into a foreign processes 9->49 18 7RZ41wuJrl.exe 2 7 9->18         started        21 dutch.exe 4 12->21         started        23 dutch.exe 12->23         started        25 dutch.exe 12->25         started        signatures5 process6 dnsIp7 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->51 53 Tries to steal Mail credentials (via file access) 14->53 55 Tries to harvest and steal ftp login credentials 14->55 57 Tries to harvest and steal browser information (history, passwords, etc) 14->57 33 bh-58.webhostbox.net 199.79.63.24, 49701, 49704, 49705 PUBLIC-DOMAIN-REGISTRYUS United States 18->33 27 C:\Users\user\AppData\Local\...\dutch.exe, PE32 18->27 dropped 29 C:\Users\user\...\dutch.exe:Zone.Identifier, ASCII 18->29 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 61 Installs a global keyboard hook 18->61 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1c9d77531fafcb6b976656bea2a0e647688a049499956979b6d121640c6b29ab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-31 06:58:06 UTC
AV detection:
32 of 48 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dsoxouy7v7fwxf3gk27kfihgi5uiubeutgkws6nw2eqwiddlfgvq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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c4187fe250b35cb65deb03cb6a39fe1814ef4e425cf32e67f6afc3c9122600f6
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d907d7da5552b08415af0136f83af0d42d9cfa4c4ebe827a3bcfe3ec4f09e76c
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e726b85425a9c7ac3b74d7bb4b7d86079e66f22d27a4ecda2b002b2b7e1db7d7
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ee9ee2abef95ddfdcad61d9314b9fec9deb37695427b57b85248ff3adfa8fdeb
AgentTesla
+ 10'650 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/200731-4vvkfabz16/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
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/1c9d77531fafcb6b976656bea2a0e647688a049499956979b6d121640c6b29ab

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.

Web download

AgentTesla

Executable exe 1c9d77531fafcb6b976656bea2a0e647688a049499956979b6d121640c6b29ab

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/35866/
  
URLhaus
https://urlhaus.abuse.ch/url/384201/
  
Delivery method
Distributed via web download

Comments