MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b27dd3567dc116e259d6c901b05f38a37bb3ff7805c1501fb71ca22e05cc684. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b27dd3567dc116e259d6c901b05f38a37bb3ff7805c1501fb71ca22e05cc684
SHA3-384 hash: e7c886bc8b24d09f486bf5842dce4cf0a03b89f6f13582f9f1df070e099f49bc91cc478f224157993878530f39aee621
SHA1 hash: 791d39bcad98fcd9cad84c512425f5a7a8d586fb
MD5 hash: 208f816508c0be434d4ee05f7895f9d4
humanhash: bacon-cat-mirror-nineteen
File name:don.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:459'264 bytes
First seen:2020-08-05 07:35:44 UTC
Last seen:2020-08-05 10:05:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:1MApe9l7pNrb4q19YySIj/NdQSAWgyTaxlg1gcHF8rTR3YmW9QyBGo2P6vZPYBC1:ayKjAqk2cyTaxK1rHF8PRZuQyBpNgfa
Threatray 10'628 similar samples on MalwareBazaar
TLSH B7A4F14C36A08409F2BA1D7F6C7114C38E22F40FDE22E64B5AB615B945BE19DBC71F62
Reporter JAMESWT_WT
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39099/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.16140.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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410383
Signature
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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
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: 257437 Sample: don.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 61 Found malware configuration 2->61 63 Sigma detected: Scheduled temp file as task from temp location 2->63 65 Yara detected AgentTesla 2->65 67 5 other signatures 2->67 8 don.exe 5 2->8         started        12 chrome.exe 3 2->12         started        14 chrome.exe 2->14         started        process3 file4 47 C:\Users\user\AppData\...\faxjmNmssw.exe, PE32 8->47 dropped 49 C:\Users\...\faxjmNmssw.exe:Zone.Identifier, ASCII 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmpA4FF.tmp, XML 8->51 dropped 53 C:\Users\user\AppData\Local\...\don.exe.log, ASCII 8->53 dropped 87 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->87 89 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->89 91 Injects a PE file into a foreign processes 8->91 93 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->93 16 don.exe 2 5 8->16         started        21 schtasks.exe 1 8->21         started        95 Machine Learning detection for dropped file 12->95 23 chrome.exe 2 12->23         started        25 schtasks.exe 1 12->25         started        27 schtasks.exe 14->27         started        29 chrome.exe 14->29         started        signatures5 process6 dnsIp7 57 premium79.web-hosting.com 199.188.200.182, 49748, 49751, 587 NAMECHEAP-NETUS United States 16->57 59 192.168.2.1 unknown unknown 16->59 43 C:\Users\user\AppData\Roaming\...\chrome.exe, PE32 16->43 dropped 45 C:\Users\user\...\chrome.exe:Zone.Identifier, ASCII 16->45 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->69 71 Moves itself to temp directory 16->71 73 Tries to steal Mail credentials (via file access) 16->73 75 Installs a global keyboard hook 16->75 31 WerFault.exe 16->31         started        34 conhost.exe 21->34         started        77 Tries to harvest and steal ftp login credentials 23->77 79 Tries to harvest and steal browser information (history, passwords, etc) 23->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->81 37 conhost.exe 25->37         started        39 conhost.exe 27->39         started        file8 signatures9 process10 file11 55 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 31->55 dropped 83 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 34->83 85 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 34->85 41 WerFault.exe 34->41         started        signatures12 process13
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b27dd3567dc116e259d6c901b05f38a37bb3ff7805c1501fb71ca22e05cc684/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 07:37:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dmt52nlh3qiw4jm5nsibwbptri33wp7xqbobkap3ohfcfyc4y2ca._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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27d6e0aa8a7734ceaf0872c545900c87d83bc2955927ba3d0d34739f4d653291
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382abd4e299af3553e71a429456f36e30ac8fe4634a5f95089af9f85c20fa687
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6f6c89a2569d5cf213a0cba5a78eef2d116a0325a6128190a3832f74f9df887b
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ad80742ca362e8dd403398353b4f0b0fd8c4eacaaaf8fb202fa8bf1c4f4dd294
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b96c74f4b922042a1e720bec81fcd230a007956f38889645c0a59f17d6365ba7
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e91d532d8063f104ca3b861c51f95b7cd7e79010024fd713515e1c5283a8b2ad
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f242ad8f253e4e481529cffa7b3d697683649ba31b8c8500f2d24d2bf591e553
AgentTesla
+ 10'618 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200805-5cfqs6x6hx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Program crash
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/1b27dd3567dc116e259d6c901b05f38a37bb3ff7805c1501fb71ca22e05cc684

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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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 1b27dd3567dc116e259d6c901b05f38a37bb3ff7805c1501fb71ca22e05cc684

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/424616/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/39099/

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