MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 363c8871acfef92a80406a6bf155f40531e03ff7e2807111a3a456384e335bbf. 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: 363c8871acfef92a80406a6bf155f40531e03ff7e2807111a3a456384e335bbf
SHA3-384 hash: 9cbd77d0d4b3551d130ba45cbe5824666686f8c44529a633625df917527405ba3deac2428be72ffc2d8b1ad57469e7b7
SHA1 hash: 0b3c117c129caef3d60354427ac09b0f48a3b0f0
MD5 hash: 9d4ce5064a674e6405be9e8cbd81866f
humanhash: king-mountain-bulldog-virginia
File name:Scan_05082020.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:464'384 bytes
First seen:2020-08-05 08:41:34 UTC
Last seen:Never
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:nMITRP6xBLeMU5vWqEkWIiqZZhr2wuTZZiVYzpytfd:nMITcxBaMU5okW9qZZhKBNZ6Y
Threatray 10'693 similar samples on MalwareBazaar
TLSH 57A4F01C3691918AF2AA0E3F4D3504839E22FC1FDE26C60B5976326805BF69DBC75F21
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: server.domain.com
Sending IP: 194.187.249.84
From: Kim <htfytdy@163.com>
Subject: RE: Order 8/5/2020 12:04:27 a.m.
Attachment: Scan_05082020.img (contains "Scan_05082020.exe")

AgentTesla SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39245/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410641
Signature
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to register a low level keyboard hook
Found malware configuration
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)
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257592 Sample: Scan_05082020.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Yara detected AgentTesla 2->33 35 5 other signatures 2->35 7 Scan_05082020.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\OObCklu.exe, PE32 7->19 dropped 21 C:\Users\user\...\OObCklu.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp6455.tmp, XML 7->23 dropped 25 C:\Users\user\...\Scan_05082020.exe.log, ASCII 7->25 dropped 37 Writes to foreign memory regions 7->37 39 Allocates memory in foreign processes 7->39 41 Injects a PE file into a foreign processes 7->41 43 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->43 11 RegSvcs.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 mail.privateemail.com 198.54.122.60, 49730, 587 NAMECHEAP-NETUS United States 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 5 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/363c8871acfef92a80406a6bf155f40531e03ff7e2807111a3a456384e335bbf/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 02:48:17 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gy6iq4nm734svacanjv7cvpuauy6ap7x4kahcendurldqtrtlo7q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'683 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200805-93cn61n9rx/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/363c8871acfef92a80406a6bf155f40531e03ff7e2807111a3a456384e335bbf

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

img afe7dfac84280debd61dd82d93de4546caebd5026ad0be531699fe3f46c81db7

AgentTesla

Executable exe 363c8871acfef92a80406a6bf155f40531e03ff7e2807111a3a456384e335bbf

(this sample)

  
Dropped by
MD5 648b3a7dac899191d7a7459a749610e8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39245/
  
Dropped by
SHA256 afe7dfac84280debd61dd82d93de4546caebd5026ad0be531699fe3f46c81db7

Comments