PDF malware analysis — malicious · 63574bb8466ddc4b

MALICIOUS

PDF

84.5 KB Created: 2021-03-23 01:16:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e6b6f530ef2c3a2ad41066c6123aa901 SHA-1: 4a1e7aa0aee4255bbf7d4aa138ecbbd0300d3483 SHA-256: 63574bb8466ddc4b6ea6db29c56068a221b298fd6cb018be1e0f5c6b96c74768

212 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. The presence of numerous PDF links, some potentially generated for SEO purposes, further supports this. No scripts were extracted, but the primary attack vector appears to be directing users to malicious URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.8245

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://yafferge.ru/award?keyword=canevas+de+r%25C3%25A9daction+d+un+projet+pdf
- https://cdn.sqhk.co/xuwolegu/3jhjhig/cake_designs_simple.pdf
- https://cdn.sqhk.co/niririga/E2jfUgh/soccer_royale_clash_games.pdf
- https://bofujobepoj.weebly.com/uploads/1/3/1/1/131164048/6d71a900.pdf
- http://viniveba.mywebcommunity.org/29812039616.pdf
- http://kifopelidito.mypressonline.com/dugarefu.pdf
- http://vedivux.mygamesonline.org/what_is_mean_median_mode_explain_with_example.pdf
- https://wixepivod.weebly.com/uploads/1/3/0/7/130775856/negifibifenekuzepine.pdf
- https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/b3f630c.pdf
- https://xoluvujotu.weebly.com/uploads/1/3/1/0/131070376/365cae0bf.pdf
- http://pewekelexu.mygamesonline.org/how_to_draw_a_graph_in_science_ks3.pdf
- https://xanusirotenil.weebly.com/uploads/1/3/1/4/131407364/ragegajomevakiz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://59b7e61f-9850-45ee-add2-e9646db267e4.filesusr.com/ugd/5b9365_d4007137d00f4c38abd7eb68fac5c369.pdf?index=true
- https://s3.amazonaws.com/falufusu/aimware_cs_1._6_free.pdf
- https://ad858f6a-7bbb-416d-9365-e04d7986ed9b.filesusr.com/ugd/3c9ac1_d48fcf229ba04a40981b68607bd9521b.pdf?index=true
- https://s3.amazonaws.com/wopari/54189748081.pdf
- https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_2f7d92bd302d4730843ab24aaf130c0e.pdf?index=true
- https://689a2394-1721-4ce0-b6f7-af9f1dc0d621.filesusr.com/ugd/0f5b72_bcc44df597714766b0ce9b2036096f6d.pdf?index=true
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001373e.bin` `c19d82ba0951c8ffe72e21b1c83490b071b10fc3a2839e21dec04449b3dc5dde`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1373E	5300 bytes

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