PDF malware analysis — malicious · 86f508dbaf5e47dc

MALICIOUS

PDF

93.6 KB Created: 2021-07-15 22:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15

MD5: 4fad1300f4d7cd0c9865573551c0a563 SHA-1: 27c7ab945378e068a6254bf9228c7045a935b4a0 SHA-256: 86f508dbaf5e47dc28518c46c55d951d8b02dc2c13a723226f5cfe61dae4bcef

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to websites that appear to be compromised or hosted on disposable domains, characteristic of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple PDF link farm heuristics further supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9924

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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
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://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/q7q82l9sv0abapclhpi3n15fv6/medofezefonogap.pdf In PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096668750570---72557839432.pdfIn PDF document text
- http://versobrokers.eu/userfiles/files/welegejib.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/zinefilosozujizisojapaje.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/069369f67e2ab0a18a6343ffbf7df580/26114626670.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/o8tv16os53im0k607g5nr9ik5o/tituwofixajoloresali.pdfIn PDF document text
- https://blindnow.com/userfiles/file/mujapek.pdfIn PDF document text
- http://speckrepeg.by/UserFiles/files/banunukojumop.pdfIn PDF document text
- http://imssp.by/data/images/fxeditor/file/46755665925.pdfIn PDF document text
- http://creative-format.com/upload/editor/files/6091343714.pdfIn PDF document text
- http://lapenya.cat/imgjovesnaves/file/fodejolexolaxidu.pdfIn PDF document text
- https://seitonsolutions.com/ci/files/235107207.pdfIn PDF document text
- http://tsg-vaganovskoe.ru/ckfinder/userfiles/files/lanutu.pdfIn PDF document text
- https://sahodayabbsr.com/test/fckeditor/file/saxefesuzerefo.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/dd50d7944a866f3bac9d0d3471db5dd5/vemazorudusokix.pdfIn PDF document text
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d91ec00cf5---sogupurefexa.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/lqs353hutg9p2ojguh1jbtmvak/4262411521.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0bf1be87b---lebujo.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160882d9d0b8ef---56752841563.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/tavorekusul.pdfIn PDF document text
- https://peoplesmodelinternational.com/ckfinder/userfiles/files/wosujejorigudemexa.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/14a7c80ed1b483a48e9695d43f9de04a/vozadedixamux.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/9ebdfe84aba078244dbaabe6c9cc0ac1/6687827760.pdfIn PDF document text
- http://seyrimerdin.com/userfiles/file/61172939581.pdfIn PDF document text
- https://www.tunnel.de/files/uploaded/file/64090655925.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=is+cam+newton+marriedPDF 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f30c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF30C	17596 bytes
SHA-256: `9514298a220d3e6d769573b2e00591665c12817c32590f15ca13a332065fcdbb`
`font_01_sfnt_off00012153.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12153	16164 bytes
SHA-256: `fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467`
`font_02_sfnt_off000136c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x136C9	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_03_sfnt_off00014ee0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14EE0	10520 bytes
SHA-256: `e0759549155d99282afa7999637977fda5ebe2777d499bf1916e46abaceea334`

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