PDF malware analysis — malicious · 2a4789429981d6d9

MALICIOUS

PDF

74.3 KB Created: 2021-07-01 09:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: 978b1a5eb38a7f753c9be159007d1c27 SHA-1: 129981c013ca89565a1170124acc7a0d5d149797 SHA-256: 2a4789429981d6d98519462a2a075076173b62c984f26d43a94ea0b0183aceb3

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to deliver a secondary payload or phish for credentials.

Machine Learning

Nyx PDF Classifier malicious score 0.6968

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1606eeb444f105---67842723926.pdf In PDF document text
- http://slp70.com/clients/873855/File/buzunezaxigeve.pdfIn PDF document text
- https://talaa-obour.com/webmisr/uploadwebmisr/file/peparidefedenake.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607fce948a0d3---1967404744.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/9d233a951fd374a9ac2e7cbf0d46a540/sawifujuresexik.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/515098877e8859a1c0547c815b40bcef/80878206003.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a622a94874f---vebawinunimujukidukuvu.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/10296838386.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/4e6a4902392e5ce6fd118ebc4a6d727b/92117383426.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210624161706963.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c420b16e55c---soboginupudikefij.pdfIn PDF document text
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/rjmvs6n7klpfa93sv2v8u8g4j4/82331934086.pdfIn PDF document text
- https://www.rockfallco.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da2e3ba2fa---xaxakilukuni.pdfIn PDF document text
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/2rggdgocf3ma3v9s2f6j2u65u2/butexo.pdfIn PDF document text
- http://matras-devison.com/upload/file/katakewosorarivifuxuweli.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/9e7c8e3a715a37c2955b6d185a573916/82529963330.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/mnleqff5cuk4lajhlccng963s9/nunen.pdfIn PDF document text
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/5be66d1842398b413c4003fe0198f83e/92040210913.pdfIn PDF document text
- https://panificioilcavaliere.it/userfiles/files/24247627096.pdfIn PDF document text
- http://sport-way.ru/img/file/97903850946.pdfIn PDF document text
- http://gfb.it/upload/fck/file/23805120412.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/519d036f7bb9fbab71fb29283e809481/47684085446.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=new+tiny+freckle+on+palmPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e5f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5F8	10744 bytes
SHA-256: `1f352eda04fb6817afbb8a22fc9a2a57b896a78565f682aa5b07248a6b60aea3`
`font_01_sfnt_off0000fec1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFEC1	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.