PDF malware analysis — malicious · 14ca1eebe714898c

MALICIOUS

PDF

93.7 KB Created: 2021-07-21 08:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 67f44782254f914bd3c555e5f209e794 SHA-1: 5ca446400adfdfbb7c15f332a4617c1752a1614c SHA-256: 14ca1eebe714898c0462735cb179851c41708bf2fe724535276d0545a58484fa

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm pointing to multiple domains, many of which are hosted on compromised WordPress installations. ClamAV detected this file as Pdf.Phishing.Trojan, indicating a phishing or trojanized intent. The embedded URLs are designed to lure users to external sites, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier suspicious score 0.3473

Heuristics 5

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
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://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c878f8ae92a---senefixu.pdf In PDF document text
- https://media-get.ru/userfiles/files/dujosalufonefejodutaz.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5874de80f3---11511131337.pdfIn PDF document text
- http://simonide.org/userfiles/file/2232392892.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a3425ebd171---1503182859.pdfIn PDF document text
- http://sun-tes.ru/files/file/28963443947.pdfIn PDF document text
- http://packturf.fr/files/67517663638.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdf5d7670a---83692431146.pdfIn PDF document text
- http://aklond.com/UploadFilesfile///2021053002324438.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/mujuxozokipitemowolut.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609be6e6da392---79797119062.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160d2664592e5f---zujololupugotet.pdfIn PDF document text
- https://rugsinc.in/UserFiles/files/78427003879.pdfIn PDF document text
- http://oumkua.com/userfiles/file/mimovobewakinima.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cd41e014e---59692076492.pdfIn PDF document text
- https://techson-cctv.com/upload/file/62716575859.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/7999546ac7f79cbc922fab36d44a06d8/kefok.pdfIn PDF document text
- https://nodka.eu/ckeditor/ckfinder/userfiles/files/kitotatagunadeweno.pdfIn PDF document text
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/sajulanokajinajodizapiz.pdfIn PDF document text
- https://askisan.com/upload/ckfinder/files/marese.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a8fa0c4a---61190518516.pdfIn PDF document text
- http://lightningriskassessment.com/ci/userfiles/files/mulikan.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5934aadfc---famidudevedum.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=easy+lasagna+with+ricottaPDF link annotation
- 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_off00011cd6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11CD6	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000134ed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x134ED	10560 bytes
SHA-256: `f43b0067bbeac99a2cee37c38988f18234967fd4d985d14ab1d735a7fcf34d18`
`font_02_sfnt_off00014d05.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14D05	18704 bytes
SHA-256: `ac2c7b5e8338ca2e7ac8d6396d5be219b9bf62f00db1bcdf337c89af1319763a`

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