Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41d43f4a2007df6…

MALICIOUS

PDF

46.5 KB Created: 2020-08-15 08:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d9fefb13084716ddc382703d85ab920 SHA-1: 7e0e2dc99b54d70062360909d2f65f0772c22e21 SHA-256: c41d43f4a2007df60e5ddde27c86d624ff34fab1fab0167ce07818bcc874a991
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=tower+defense+king+mod+apk+unlimited+money', is designed to lure users into downloading potentially malicious content. The presence of numerous other PDF links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.cc/pify?keyword=tower+defense+king+mod+apk+unlimited+money In PDF document text
    • http://muxuz.faceeffect.shop/uploads/1/3/0/8/130813604/lepavusojulise_niropidesexiwoj_loluxodafi.pdfIn PDF document text
    • http://files.mustangs4mustangs.org/uploads/1/3/1/3/131398184/2144504.pdfIn PDF document text
    • http://files.carolslifeafterretirement.com/uploads/1/3/1/4/131406442/c21465595bd0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4991/8362/files/tagifogarotuvat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/61987620109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/tapaxowikojefevomasafopap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1229/2767/files/kimakiboluzafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0843/4077/files/95992865194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/5939812597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9208/0795/files/ranabuderujagosokuxajawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/xofilubagakolurori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8839/2871/files/20xx_4._06_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/resepetakixekubovavil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/21535379660.pdfIn 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_off000062a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A5 5568 bytes
SHA-256: a20b3861037b4675388cff81f8ec0a2a541ee3b017564a69fa459eef2b75cd6d
font_01_sfnt_off000075ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75AE 9784 bytes
SHA-256: 981d1592f9f4acdae250a53798afeef74a08f2651e1b2cdb522d87357aa2dc71
font_02_sfnt_off00009774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9774 16160 bytes
SHA-256: 53c3ec829963ec5a0af1bff4be2d724acb9959b277e5253d769434e6be684fe1

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