Malicious PDF — malware analysis report

Static analysis result for SHA-256 12118a5171a21d95…

MALICIOUS

PDF

137.3 KB Created: 2021-01-14 23:34:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b82134ef1baa1167c0de9588ff2a5d09 SHA-1: dd4f85f2d9f222606c2ddaf3c1cfa5b9a2008a60 SHA-256: 12118a5171a21d958f89b7b7900e056301b153c8232c36e07f67b2732c3c3621
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains a large number of external links, many pointing to PDF files hosted on various platforms, suggesting a link farm or redirection mechanism. The primary external URI points to 'traffking.ru', which is likely involved in phishing or malware distribution. No scripts were extracted, but the PDF structure and numerous external links are indicative of a malicious campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffking.ru/aws?utm_term=rlcraft+beginners+guide+minecraft In PDF document text
    • https://site-1168140.mozfiles.com/files/1168140/35009611127.pdfIn PDF document text
    • https://site-1177041.mozfiles.com/files/1177041/xebasitedivara.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/0igXgih/paradise_island_bahamas_weather_in_august.pdfIn PDF document text
    • https://cdn.sqhk.co/doxowite/jaVhdha/52157139115.pdfIn PDF document text
    • https://cdn.sqhk.co/bejadelu/gMhbzBS/ncert_7th_class_science_book_solutions.pdfIn PDF document text
    • https://site-1177725.mozfiles.com/files/1177725/white_stripes_greatest_hits_album.pdfIn PDF document text
    • https://fileduwefevara.weebly.com/uploads/1/3/4/3/134384607/2019738.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/sjaeLCM/rogulonapelewumokakoza.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/zelubukuxomep.pdfIn PDF document text
    • https://wobomiti.weebly.com/uploads/1/3/4/5/134501920/9256583.pdfIn PDF document text
    • https://cdn.sqhk.co/zisubiziwu/hiz2wij/love_story_movies_2019_telugu.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/tsrhgwd/faferinafubapubukep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cbba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CBBA 5488 bytes
SHA-256: 390e609c6956ae7ba02d6e6616448814194f674dc7366055ea532d08b47819d2
font_01_sfnt_off0001de59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE59 10592 bytes
SHA-256: f3e4a4eb1331b8fecb394e1b7415324da7b206ae4dbcf5e518c7c584b7cd66f5
font_02_sfnt_off000202af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x202AF 16104 bytes
SHA-256: c72ca0970d51b0a8ad78cefeb5ce5696832e14da31bd2128a4ba9c3d04a16bf4

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