MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a. 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 6 File information Comments
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SHA256 hash: 8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a
SHA3-384 hash: 07bb8397f21528b7dd84f671eb845a199ab844b5212f3b76bdfab21c0dd155f4baa721d0f14e58bf751421429d76e0d9
SHA1 hash: 9e37f369b806dc677f60e30fa9d94751d7592668
MD5 hash: 3dcfc5cfe8b39da98c591b6e977811a2
humanhash: one-pizza-north-fanta
File name:IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:650'752 bytes
First seen:2020-07-29 14:41:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:CnJqUClnRLu/lr4och8ZQTHXlcvdkVnwKj3JzLzpyV9K:YJMLLu/lrzch48HXlc6wKpzP
Threatray 461 similar samples on MalwareBazaar
TLSH C0D45AA8F994D91CFABD81F891B477D0CEA86B541813C3C527B476DBC8FE212AC4C1A5
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: 3goz.com
Sending IP: 213.128.71.98
From: Aisha Amari <6667hs@naver.com>
Subject: Product Inquiry - RFQ DTD290720
Attachment: IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.z (contains "IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.exe")

Unknown payload URL:
http://wellcraftint.com/file.exe

AgentTesla SMTP exfil server:
mail.anantcreation.co.in:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35007/
Detection(s):
SecuriteInfo.com.Fareit-FXU3DCFC5CFE8B3.18833.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Reading critical registry keys
Unauthorized injection to a recently created process
Stealing user critical data
Unauthorized injection to a system process
Result
Threat name:
AgentTesla AveMaria
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Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/402774
Signature
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to hide user accounts
Creates a thread in another existing process (thread injection)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253728 Sample: IMAGES AND SPECIFICATIONS -... Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 45 g.msn.com 2->45 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 8 other signatures 2->63 9 IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.exe 5 2->9         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\...\tmp4215.tmp, XML 9->35 dropped 37 IMAGES AND SPECIFI... 24-0720PDF.exe.log, ASCII 9->37 dropped 39 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->39 dropped 71 Injects a PE file into a foreign processes 9->71 13 IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.exe 3 18 9->13         started        18 schtasks.exe 1 9->18         started        20 IMAGES AND SPECIFICATIONS - RFQ DTD 24-0720PDF.exe 9->20         started        signatures6 process7 dnsIp8 47 wellcraftint.com 204.93.168.252, 49738, 80 SERVERCENTRALUS United States 13->47 49 45.137.22.117, 49737, 5200 ROOTLAYERNETNL Netherlands 13->49 51 192.168.2.1 unknown unknown 13->51 41 C:\Users\user\AppData\Roaming\n.E.zujBF.exe, PE32 13->41 dropped 43 C:\Users\user\AppData\Local\...\file[1].exe, PE32 13->43 dropped 81 Writes to foreign memory regions 13->81 83 Allocates memory in foreign processes 13->83 85 Increases the number of concurrent connection per server for Internet Explorer 13->85 87 2 other signatures 13->87 22 n.E.zujBF.exe 1 13->22         started        25 cmd.exe 1 13->25         started        27 conhost.exe 18->27         started        file9 signatures10 process11 signatures12 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->65 67 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->67 69 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 22->69 29 n.E.zujBF.exe 2 22->29         started        33 conhost.exe 25->33         started        process13 dnsIp14 53 anantcreation.co.in 103.53.40.19, 49750, 587 PUBLIC-DOMAIN-REGISTRYUS India 29->53 55 mail.anantcreation.co.in 29->55 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->73 75 Tries to steal Mail credentials (via file access) 29->75 77 Tries to harvest and steal ftp login credentials 29->77 79 Tries to harvest and steal browser information (history, passwords, etc) 29->79 signatures15
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 14:43:08 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qe3ukp7ntqfbhf7mvhovtzsbih77xvwkx53a2qqk35cnjicj4qfa._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
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AgentTesla
+ 451 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200729-yvnd6mj67x/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
JavaScript code in executable
Reads user/profile data of web browsers
Loads dropped DLL
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Executes dropped EXE
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/8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a

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:Cobalt_functions
Create hunting rule
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:Codoso_Gh0st_1
Create hunting rule
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:Codoso_Gh0st_2
Create hunting rule
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:win_ave_maria_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_ave_maria_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

z 1baddc6589319bbb6a56a53a23e66d86e7fb621b8e7ed8df0e411d501e97e958

AgentTesla

Executable exe 8137453fed9c0a1397eca9dd59e64141fffbd6cabf760d420adf44d4a049e40a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/421468/
  
Dropped by
MD5 1772e4b5f46860321d069491de9c1724
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35007/
  
Dropped by
SHA256 1baddc6589319bbb6a56a53a23e66d86e7fb621b8e7ed8df0e411d501e97e958

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