PDF malware analysis — malicious · f90ee268f11a96d0

MALICIOUS

PDF

83.3 KB Created: 2021-07-06 12:10:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: 7e487fa442d91b9ffeab733c0b44359e SHA-1: 45cab199efc429e0767d1cae190475f779b1de12 SHA-256: f90ee268f11a96d0a23322fafabd7f7fb8e1fe37d2474efffcf5fea9a8b26d37

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains a link farm pointing to compromised WordPress upload directories and disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of embedded URLs and the overall structure indicate a phishing or malware distribution lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9860

Heuristics 7

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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 https://soudurelausiere.ca/upload/editor/file/jikijaxazapa.pdf In PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/113d3ef69f11362ca36044987aa6beb5/jadimivuzituvovukaf.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/90479b300310c8d130239cea6a4ae11b/90545766377.pdfIn PDF document text
- https://samarpanbharat.org/trila/userfiles/file/42076442765.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9feb7a4fb---fozexogijodubereseguvofe.pdfIn PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/7o78h6spbsh1lg5cfv627hhpgd/13953540785.pdfIn PDF document text
- http://verypool.cn/images/upload/File/74532285722.pdfIn PDF document text
- http://nhhs78.org/clients/63854/File/93119557035.pdfIn PDF document text
- http://infinijewelry.com/userfiles/file/fudemeserozosubudewuz.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160be2ecb12cd5---4695099010.pdfIn PDF document text
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/s8kfk5q9d6kr52m92pui7mt4a7/9826920017.pdfIn PDF document text
- https://hgb.se/filer/file/15739883910.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606d44bf2c23e---kunijesudusotikapama.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bdf51ade12---59706045525.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c459e606906---96013820926.pdfIn PDF document text
- http://chayka-svg.ru/files/zefafezezeliwe.pdfIn PDF document text
- http://crmloccitanecr.com/campannas/file/91983784018.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/d787d55ce47cf015ad0d30e8e89399ba/pigewibajiludod.pdfIn PDF document text
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/87jucmk966nkp38jrebh7envp7/kemajanewutiwikebeburadix.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160b62c3dd7157---7651971286.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/3116a0c4628ce24da7a56bf8b4d6f8b3/videvuralifajenu.pdfIn PDF document text
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/1ealq8adn1i0pq1d0goljghbh4/3274434266.pdfIn PDF document text
- https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/cb1179e1641090783b88d3e70aff6a74/49064371531.pdfIn PDF document text
- http://digitalpolicycouncil.com/imagenes/file/nulotobefozatupanimu.pdfIn PDF document text
- http://shinies.ru/img/lib/file/21116818448.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16082ee3576869---narikuzuburebenovez.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=10th+class+physics+chapter+wise+test+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e145.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE145	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000f957.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF957	17316 bytes
SHA-256: `bf97d51ae3e0d8421637c6b511d46e0f368d17f4fbfc2093009bd6ad02a2ccde`
`font_02_sfnt_off000126ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126AE	10772 bytes
SHA-256: `2a961275547c48bd947dcdaa4df3829727def5eee59c39629c3a3aa0a4d3ad8f`

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