MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a53181aa1e3f435bf2036ddff15a7e8e3382bfceade53abd9f3a6e14ed2cf5b. 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: 7a53181aa1e3f435bf2036ddff15a7e8e3382bfceade53abd9f3a6e14ed2cf5b
SHA3-384 hash: e205192e5c3a45db0b08d613ee98901aee217f88fc4504c09a038a7aac39525f979742ebdea4ad66373d77f5a015dc8b
SHA1 hash: 2f683c3dd410f542383eebfaa033dc3c47d1afec
MD5 hash: 8b622390bd7c3a881878b740857c506b
humanhash: oscar-speaker-saturn-ink
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:615'936 bytes
First seen:2020-08-31 10:17:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:itRfaZt38zRoWyjswBQuURmx7qlP4fBnTpKFpQ/MGCuqnE2OlFqjmu:2RfY38NoWyjJN7qlP4fBnTpKsMG3Fqjm
Threatray 9'450 similar samples on MalwareBazaar
TLSH D3D42252E76CCB9BE5FD06BA981E711053263D91C990D60AEC85BC9F3AB27508123F4F
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: host13.registrar-servers.com
Sending IP: 198.54.126.53
From: info@securedservices.xyz
Subject: Quotation Request
Attachment: Purchase Order.img (contains "Purchase Order.exe")

AgentTesla C2:
http://securedservices.xyz/webpanel/inc/e4473c63d03b48.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53375/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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/455190
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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)
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
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
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279970 Sample: Purchase Order.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 53 securedservices.xyz 2->53 67 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 12 other signatures 2->73 8 appdata.exe 5 2->8         started        11 Purchase Order.exe 6 2->11         started        14 appdata.exe 2->14         started        signatures3 process4 file5 75 Multi AV Scanner detection for dropped file 8->75 77 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->77 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->79 83 2 other signatures 8->83 16 appdata.exe 14 4 8->16         started        20 schtasks.exe 1 8->20         started        43 C:\Users\user\AppData\Roaming\YnvUZE.exe, PE32 11->43 dropped 45 C:\Users\user\AppData\Local\...\tmp8B8A.tmp, XML 11->45 dropped 47 C:\Users\user\...\Purchase Order.exe.log, ASCII 11->47 dropped 81 Injects a PE file into a foreign processes 11->81 22 Purchase Order.exe 17 7 11->22         started        25 schtasks.exe 1 11->25         started        27 appdata.exe 14->27         started        29 schtasks.exe 14->29         started        31 appdata.exe 14->31         started        signatures6 process7 dnsIp8 33 conhost.exe 20->33         started        49 securedservices.xyz 198.54.126.53, 49720, 49732, 49734 NAMECHEAP-NETUS United States 22->49 39 C:\Users\user\AppData\Roaming\...\appdata.exe, PE32 22->39 dropped 41 C:\Users\user\...\appdata.exe:Zone.Identifier, ASCII 22->41 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->55 57 Tries to steal Mail credentials (via file access) 22->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->59 35 conhost.exe 25->35         started        51 192.168.2.1 unknown unknown 27->51 61 Tries to harvest and steal ftp login credentials 27->61 63 Tries to harvest and steal browser information (history, passwords, etc) 27->63 65 Installs a global keyboard hook 27->65 37 conhost.exe 29->37         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7a53181aa1e3f435bf2036ddff15a7e8e3382bfceade53abd9f3a6e14ed2cf5b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 01:57:19 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pjjrqgvb4p2dlpzag3o76fnh5drtqk745lpfhk6z6otoctwsz5nq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'440 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware evasion trojan family:agenttesla
Link:
https://tria.ge/reports/200831-alzaj14sma/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7a53181aa1e3f435bf2036ddff15a7e8e3382bfceade53abd9f3a6e14ed2cf5b

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 19bd376d4febdfc512a5e1242c79a9a0e2b77c007a09ae07b05a656957a42618

AgentTesla

Executable exe 7a53181aa1e3f435bf2036ddff15a7e8e3382bfceade53abd9f3a6e14ed2cf5b

(this sample)

  
Dropped by
MD5 101543f1806d201c652031dab1181b94
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53375/
  
Dropped by
SHA256 19bd376d4febdfc512a5e1242c79a9a0e2b77c007a09ae07b05a656957a42618

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