Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f984e95f1c5b98…

MALICIOUS

PDF

42.7 KB Created: 2020-08-27 16:05:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94a42b7eba75e8861361a56d34a4c6e4 SHA-1: 7f9ae47b67d16509d4b5e2e844e9e666fc8eccc3 SHA-256: 84f984e95f1c5b98f3cb4330231f7d6970fa66cd197e12031d15d1c0279f8c83
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service that ultimately leads to malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/pify?keyword=twin+saga+discord', which is flagged as a malicious redirector. The presence of a large number of external PDF links suggests a link farm or phishing attempt to distribute further 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.club/pify?keyword=twin+saga+discord In PDF document text
    • http://winobofa.moabgear.com/uploads/1/3/1/6/131606289/3a077872.pdfIn PDF document text
    • http://files.christchurchjax.net/uploads/1/3/1/8/131871787/4813886.pdfIn PDF document text
    • http://files.kovametalli-in.com/uploads/1/3/2/7/132741535/sudufakopo.pdfIn PDF document text
    • http://files.brrclub.com/uploads/1/3/0/7/130740211/cbe8aaa965.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/1/0430/1455/3763/files/potupifeninozofigami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8011/2535/files/assetto_corsa_honda_s2000_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7353/6149/files/aadhar_card_form_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0499/2421/files/90537366479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/80576112322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/53219477670.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 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54DA 3184 bytes
SHA-256: db64a4691a761e65542288d07dfa48ea9a963adb995d2426cc5bdd736a69c6e5
font_01_sfnt_off00006030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6030 5116 bytes
SHA-256: 812ff1420de71027e7134bb5d1059b50288ecc98988ccb66d2069a0b045fcb6f
font_02_sfnt_off000071a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A2 2092 bytes
SHA-256: 9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
font_03_sfnt_off00007b43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B43 10060 bytes
SHA-256: 4a83a00d444b9b071e623e9e65787cf98cdccb57c7ae15e02880e696cccaad44

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