Malicious PDF — malware analysis report

Static analysis result for SHA-256 4424d33c959d92ba…

MALICIOUS

PDF

41.6 KB Created: 2020-08-17 14:23:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cec301384491ecd0b3dd35b840ba290d SHA-1: d6b618628f8473ac01bffc0dcd921112163db992 SHA-256: 4424d33c959d92ba0bccb326dc85050b77d1b610dad8e2ffbf4d8a040082d07a
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to attract search engine traffic. The primary redirector URL, https://ttraff.cc/pify?keyword=android+mobile+phone+secret+codes, is flagged as malicious and likely serves as a lure for phishing or malware delivery. The document body, though heavily obfuscated, contains this same redirector URL and other PDF links, reinforcing the attack pattern.

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=android+mobile+phone+secret+codes In PDF document text
    • http://files.gchorns.com/uploads/1/3/0/8/130814177/444e656226.pdfIn PDF document text
    • http://files.sunshinecityfilmfestival.com/uploads/1/3/1/8/131871554/wisaxaga-vezopusosivofa-suzusapux.pdfIn PDF document text
    • http://gotoroze.tac4usa.com/uploads/1/3/0/8/130874540/wamerejiwewu_jetovokod.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/1/0430/3680/3233/files/51261694451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3538/6265/files/pujesugidajosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9433/4869/files/10847278054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/satuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/98438390577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/nancy_drew_curse_of_blackmoor_manor_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/travel_planning_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/fefajogunexowiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9876/5480/files/departmental_account_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6262/files/60635106342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/alan_walker_darkside_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/jukugemabakex.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
🗂 Part of campaign: jerestormer.com 4 samples

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6454 5232 bytes
SHA-256: a5bfdd09590ace1fef5dd4af22f2b476d2827094c99eefc245ebd4c3916a53cc
font_01_sfnt_off000075e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E6 10372 bytes
SHA-256: 5bd6af456c391779bd91357097d9e1bff4d8e5d7f2126339a9d1dbb5533a51d7

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