MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b8c51e6ccd38ea64c9899fd091e2a89b25169dcfcacefc39e780c62f6dfea93. 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: 9b8c51e6ccd38ea64c9899fd091e2a89b25169dcfcacefc39e780c62f6dfea93
SHA3-384 hash: ab5c4554ede3e93cbb188b4771302131853ef2b89cd8e5dc69ada63a7209659cd9031f598894fca3f2046bd027c12f1b
SHA1 hash: a1fc4e6b318a1c0eed9b7f0215774b888fc48e25
MD5 hash: dca1398159d8d786e29e9a030273d075
humanhash: nebraska-alpha-colorado-table
File name:SWift Copy.doc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:885'760 bytes
First seen:2020-08-04 13:31:53 UTC
Last seen:2020-08-04 15:22:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:TIAdUaHcPgYxmOE+2Do4pPeRH89fVy5AnPOHDvn6YwRJUuPfGKu9bC19qDVP:T/UrIYxPeVZlyAP6DPteN6bC19mVP
Threatray 10'644 similar samples on MalwareBazaar
TLSH 4815AEC2F5409E50D81A4E3B4D3349914B33AC6BEF02C607749CB6596BF768A6E25F83
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: server.thebricspost.com
Sending IP: 64.15.138.14
From: Mohammed Zeeshan <info@deyaalka.com>
Subject: RE: Payment Receipt
Attachment: SWift Copy.doc.r04 (contains "SWift Copy.doc.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38728/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.11152.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
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/409498
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts 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
Sigma detected: Suspicious Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
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: 257032 Sample: SWift Copy.doc.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 72 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->72 74 Found malware configuration 2->74 76 Sigma detected: Scheduled temp file as task from temp location 2->76 78 10 other signatures 2->78 9 SWift Copy.doc.exe 5 2->9         started        13 goICPG.exe 3 2->13         started        15 goICPG.exe 2 2->15         started        process3 file4 54 C:\Users\user\AppData\...\RTNKccFylQ.exe, PE32 9->54 dropped 56 C:\Users\...\RTNKccFylQ.exe:Zone.Identifier, ASCII 9->56 dropped 58 C:\Users\user\AppData\Local\...\tmp418B.tmp, XML 9->58 dropped 60 C:\Users\user\...\SWift Copy.doc.exe.log, ASCII 9->60 dropped 88 Injects a PE file into a foreign processes 9->88 17 SWift Copy.doc.exe 2 5 9->17         started        22 schtasks.exe 1 9->22         started        90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->90 92 Machine Learning detection for dropped file 13->92 94 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 13->94 24 schtasks.exe 15->24         started        26 goICPG.exe 15->26         started        signatures5 process6 dnsIp7 62 smtp.coffiices.com 17->62 64 us2.smtp.mailhostbox.com 208.91.199.223, 49733, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->64 48 C:\Users\user\AppData\Roaming\...\goICPG.exe, PE32 17->48 dropped 50 C:\Windows\System32\drivers\etc\hosts, ASCII 17->50 dropped 52 C:\Users\user\...\goICPG.exe:Zone.Identifier, ASCII 17->52 dropped 80 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->80 82 Tries to steal Mail credentials (via file access) 17->82 84 Modifies the hosts file 17->84 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->86 28 reg.exe 17->28         started        30 goICPG.exe 22->30         started        34 schtasks.exe 1 22->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        file8 signatures9 process10 dnsIp11 40 conhost.exe 28->40         started        66 208.91.198.143, 49734, 587 PUBLIC-DOMAIN-REGISTRYUS United States 30->66 68 smtp.coffiices.com 30->68 70 us2.smtp.mailhostbox.com 30->70 96 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 30->96 98 Tries to steal Mail credentials (via file access) 30->98 100 Tries to harvest and steal ftp login credentials 30->100 102 2 other signatures 30->102 42 reg.exe 30->42         started        44 conhost.exe 34->44         started        signatures12 process13 process14 46 conhost.exe 42->46         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9b8c51e6ccd38ea64c9899fd091e2a89b25169dcfcacefc39e780c62f6dfea93/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 13:33:04 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=togfdzwm2ohkmteyth6qshrkrgzfc2o47swo7q46paggf5w75kjq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'634 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/200804-qgja8tn3ye/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9b8c51e6ccd38ea64c9899fd091e2a89b25169dcfcacefc39e780c62f6dfea93

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.

e1ad02e7a79d9b35c8aa3044b638edba

AgentTesla

Executable exe 9b8c51e6ccd38ea64c9899fd091e2a89b25169dcfcacefc39e780c62f6dfea93

(this sample)

  
Dropped by
MD5 e1ad02e7a79d9b35c8aa3044b638edba
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38728/

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