Malicious PDF — malware analysis report

Static analysis result for SHA-256 842c75cecf0cc53e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-21 16:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fea85875e6f46d983cd90eb4df93b709 SHA-1: e65c19edb2134b27ff24cdab7e69aa6b3c51dbd8 SHA-256: 842c75cecf0cc53efa5aad7b543211c1f3eea80757f3dee96af12173dbc3c547
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a redirector URL that is flagged as malicious. The document body, though heavily obfuscated, appears to contain a lure related to 'Bowmasters mod apk all characters', suggesting a phishing or scam attempt. The presence of numerous SEO-optimized PDF links further indicates an attempt to distribute potentially malicious content or drive traffic to malicious sites.

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=bowmasters+mod+apk+all+characters In PDF document text
    • http://files.joelsaldana.com/uploads/1/3/0/8/130814056/4896719.pdfIn PDF document text
    • http://files.swdcollections.com/uploads/1/3/1/3/131383698/sivitexaw-tafosiji-xisever.pdfIn PDF document text
    • http://files.alhamptonchapel.org/uploads/1/3/1/6/131606569/dovujogevudapam-fazeriboranubu-tupekobupipupin-tobusilodu.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/1/0434/1222/6200/files/estadistica_para_negocios_y_economia_anderson_12_edicion_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/bumotomupidamepap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3524/5209/files/bossam_v6_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1551/9912/files/architectural_plan_symbols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3199/3242/files/ladasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/fowijuzekewozagifoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9892/2392/files/85534958787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/xofonikegej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/rotejegerenobovekapef.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 4

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_off0000636b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636B 5516 bytes
SHA-256: f286b593e2e3442aaadcbdcc44c706882fe99095a2c98baa9ef7305e286e839f
font_01_sfnt_off0000760e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760E 9948 bytes
SHA-256: 5e4a5e9bff8f937c91326c315bf998c8948709db03413c0569296465574ba76a

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