MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c6e4ab5cfae334d310d66a79b2ec9947b66f14f4115b5240632bbeadb46a0cb. 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: 6c6e4ab5cfae334d310d66a79b2ec9947b66f14f4115b5240632bbeadb46a0cb
SHA3-384 hash: 0f8a68e2a6a8116fd90274681839fc7137e8cdd1c61a8ad2af60dd24924336f07d75130f43f15e516bed9d099d1385d9
SHA1 hash: f98f8b7bd841b5c82cb036524cd12b4ece77d920
MD5 hash: e9fce832d3f84db67a1af1723932613f
humanhash: twelve-beryllium-iowa-moon
File name:gunzipped
Download: download sample
Signature AgentTesla
Create hunting rule
File size:725'504 bytes
First seen:2020-08-10 13:06:57 UTC
Last seen:2020-08-13 04:42:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:8u73zXYlXl/xnng+JOYPyrrF4jZ9KnERO06LdgrpiAZA1TzckjQc:z7jXY7/xnk7ruFYEQ05QAZ8TQkjB
Threatray 10'645 similar samples on MalwareBazaar
TLSH F1F4E4C61F8ABE80D7E50731EF3EF6B0C314BE2D17978A789A81B15E307A2137595690
Reporter abuse_ch
Tags:AgentTesla


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: glo.globalalliancelog.com
Sending IP: 192.254.201.27
From: kmaukazuva <kmaukazuva@alphamedia.co>
Subject: BANK DEPOSITED SLIP
Attachment: DEPOSITED SLIP.gz (contains "gunzipped")

Intelligence

File Origin
# of uploads :
3
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/42781/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.406.25403.22014.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
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/416953
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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: 260649 Sample: gunzipped Startdate: 10/08/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 Yara detected AgentTesla 2->35 37 5 other signatures 2->37 7 gunzipped.exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\...\fBzrvQYpeWt.exe, PE32 7->21 dropped 23 C:\Users\...\fBzrvQYpeWt.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmpBFF7.tmp, XML 7->25 dropped 27 C:\Users\user\AppData\...\gunzipped.exe.log, ASCII 7->27 dropped 39 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->39 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->43 45 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->45 11 gunzipped.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        17 gunzipped.exe 7->17         started        signatures5 process6 dnsIp7 29 mail.greensudrhotel.com 192.185.186.177, 26, 49716 UNIFIEDLAYER-AS-1US United States 11->29 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 2 other signatures 11->53 19 conhost.exe 15->19         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6c6e4ab5cfae334d310d66a79b2ec9947b66f14f4115b5240632bbeadb46a0cb/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-10 13:08:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nrxevnopvyzu2minm2tzwlwjsr5wn4kpiek3kjaggk56vw2gudfq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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fdbf6a04cf22bfdc28694cc9b1b0e425abfbe97433cfc3cf5ee4a655a56e2b92
AgentTesla
+ 10'635 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware evasion trojan family:agenttesla
Link:
https://tria.ge/reports/200810-a3r495j6sj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Maps connected drives based on registry
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Checks BIOS information in registry
Reads data files stored by FTP clients
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
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/6c6e4ab5cfae334d310d66a79b2ec9947b66f14f4115b5240632bbeadb46a0cb

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

gz 2729c4d51617e3c43dd3f251a62a465a1db01c015859937c3c648262112c83b4

AgentTesla

Executable exe 6c6e4ab5cfae334d310d66a79b2ec9947b66f14f4115b5240632bbeadb46a0cb

(this sample)

  
Dropped by
MD5 cae40ca9d699bb64538238741284160b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/42781/
  
Dropped by
SHA256 2729c4d51617e3c43dd3f251a62a465a1db01c015859937c3c648262112c83b4

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