Malicious PDF — malware analysis report

Static analysis result for SHA-256 8405167a21618659…

MALICIOUS

PDF

36.6 KB Created: 2020-08-14 01:19:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10f7ecb2f9dbc2a4e4f1674ddc5e24c5 SHA-1: a19ffe0c8e1186e6020fd1bfe2275f3d2cdcb84b SHA-256: 8405167a21618659670eecd034aa67d34bec9b289733c06367e9db29d256b7a8
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector, `https://ttraff.cc/pify?keyword=messenger+lite+latest+updated+apk`, which is flagged as malicious and associated with SEO-based phishing lures. The document body and heuristics indicate a tactic to trick users into downloading an application, likely malware, by presenting it as a legitimate software update. The presence of numerous PDF links, many pointing to Shopify, suggests an attempt to create a link farm for SEO manipulation to distribute the malicious content.

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=messenger+lite+latest+updated+apk In PDF document text
    • http://files.pacificrimfoundation.org/uploads/1/3/1/3/131381553/filulapalelab_relilaso.pdfIn PDF document text
    • http://juxixewo.samluangkhot.com/uploads/1/3/0/7/130775075/459887847c8.pdfIn PDF document text
    • http://files.theprospike.com/uploads/1/3/0/7/130739427/7987585.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/1/0434/2700/4577/files/4889506413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/82436376431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0732/files/vudadorubez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7509/2132/files/82601935104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7342/0965/files/12599916351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/anexar_no_sei.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9064/8994/files/aptitude_questions_and_answers_for_computer_science_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/vokuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5877/files/46231054750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/22617901611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6629/2389/files/staphylococcus_aureus_sintomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/recommended_routine_results.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.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

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_off0000527d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527D 5196 bytes
SHA-256: edc5b924b42b9085b1b6a033a0dd7b0df54feef78ce64389f1b82cb60b6c8989
font_01_sfnt_off00006437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6437 9800 bytes
SHA-256: 58f7af5698097029439d21abf40a63816872107c5ae0e36385dccae25b88d688

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