MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c937a2903274b2498a1d488de6d7cf11811d9dc51749e4c4256262e1236473f8. 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: c937a2903274b2498a1d488de6d7cf11811d9dc51749e4c4256262e1236473f8
SHA3-384 hash: c8b3e449ddefc7271a7c5c99965020a031dec64c3afc30b1bc5134df7862b6c94f793c747f4e5bc154a08e77d4c50fa4
SHA1 hash: 28ebe93177032569db769b91ccd9e0992b76149d
MD5 hash: 26af78ad5b6bde747cb7c5b6798d13f7
humanhash: kilo-rugby-robert-arizona
File name:Payment Advice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:708'096 bytes
First seen:2020-08-28 06:43:42 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:ruO44DPWt6+zdt6fWJc5bN7O2Cr58rbifuL/HhP5kv6mnZayTQVJi:w36+p4fWJc5bNsSr+fG5aCmnc1VJ
Threatray 9'493 similar samples on MalwareBazaar
TLSH 01E4233A918CCB72DBFD2BB9842C346463E62945693ADF7C0ED79AB27473751046A303
Reporter abuse_ch
Tags:AgentTesla exe HSBC


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.com
Sending IP: 95.211.208.25
From: HSBC Advising Service advising <service.7397080.869088.2981149856@mail.com>
Subject: Payment Advice - Advice Ref:[GLV724206853] / Priority payment / Customer Ref:[5500003304]
Attachment: Payment Advice.iso (contains "Payment Advice.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/52220/
Detection(s):
SecuriteInfo.com.Fareit-FYV26AF78AD5B6B.29895.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/453334
Signature
Found malware configuration
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
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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: 279037 Sample: Payment Advice.exe Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 10 other signatures 2->70 7 Payment Advice.exe 7 2->7         started        11 xxspw.exe 4 2->11         started        13 xxspw.exe 5 2->13         started        process3 file4 44 C:\Users\user\AppData\...\dYsSYgDjRqcG.exe, PE32 7->44 dropped 46 C:\Users\...\dYsSYgDjRqcG.exe:Zone.Identifier, ASCII 7->46 dropped 48 C:\Users\user\AppData\Local\...\tmpC03D.tmp, XML 7->48 dropped 50 C:\Users\user\...\Payment Advice.exe.log, ASCII 7->50 dropped 72 Injects a PE file into a foreign processes 7->72 15 Payment Advice.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        22 xxspw.exe 11->22         started        24 schtasks.exe 11->24         started        74 Multi AV Scanner detection for dropped file 13->74 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->76 78 Machine Learning detection for dropped file 13->78 80 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 13->80 26 schtasks.exe 13->26         started        28 xxspw.exe 13->28         started        30 xxspw.exe 13->30         started        32 xxspw.exe 13->32         started        signatures5 process6 dnsIp7 52 mail.grandtours.gr 95.216.7.161, 49727, 49740, 587 HETZNER-ASDE Germany 15->52 40 C:\Users\user\AppData\Roaming\...\xxspw.exe, PE32 15->40 dropped 42 C:\Users\user\...\xxspw.exe:Zone.Identifier, ASCII 15->42 dropped 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->54 34 conhost.exe 20->34         started        56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->56 58 Tries to steal Mail credentials (via file access) 22->58 60 Tries to harvest and steal ftp login credentials 22->60 62 Tries to harvest and steal browser information (history, passwords, etc) 22->62 36 conhost.exe 24->36         started        38 conhost.exe 26->38         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c937a2903274b2498a1d488de6d7cf11811d9dc51749e4c4256262e1236473f8/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 03:41:34 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ze32febsoszetcq5jcg6nv6pcgar3hofc5e6jrbfmjroci3eop4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'483 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200828-bjg2eswrqj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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/c937a2903274b2498a1d488de6d7cf11811d9dc51749e4c4256262e1236473f8

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

iso fe5e91a9a892837b9450400f801a7f3d1b114c0b915026d4ee65922593579a0f

AgentTesla

Executable exe c937a2903274b2498a1d488de6d7cf11811d9dc51749e4c4256262e1236473f8

(this sample)

  
Dropped by
MD5 9b2c265aa6f0530f631618ca36f2f1d3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/52220/
  
Dropped by
SHA256 fe5e91a9a892837b9450400f801a7f3d1b114c0b915026d4ee65922593579a0f

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