Malicious PDF — malware analysis report

Static analysis result for SHA-256 600fd834bd9c139a…

MALICIOUS

PDF

55.3 KB Created: 2020-11-02 03:39:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: b454a8b94680cad44f27b3328eaa400d SHA-1: 3a898b9a8496f179b21980e26b4095761d12e6b6 SHA-256: 600fd834bd9c139ac26872bac9e3271f5feb466292041e29e4d7949c70b82176
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate content. The primary malicious URL, https://ttraff.link/123?keyword=palm+springs+senior+softball+national+league, is repeatedly referenced, suggesting it's the main objective. While no scripts were extracted, the PDF structure and embedded links strongly indicate a phishing or malware distribution attempt.

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.link/123?keyword=palm+springs+senior+softball+national+league In PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/475a4fbec18.pdfIn PDF document text
    • https://guburumo.weebly.com/uploads/1/3/4/3/134322172/waxurotakobe-mazuvuru-bevoluju-wetij.pdfIn PDF document text
    • https://sabitafev.weebly.com/uploads/1/3/4/3/134308069/5542070.pdfIn PDF document text
    • https://wuvirinofibugiz.weebly.com/uploads/1/3/1/0/131070402/3756296.pdfIn PDF document text
    • https://betoxugibujimiv.weebly.com/uploads/1/3/1/0/131071043/divejuxofepuwori.pdfIn PDF document text
    • https://zatajiwivovib.weebly.com/uploads/1/3/4/5/134529671/gekupet-vipudoze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/42870a01-d3a6-45c1-ac89-1a8bc6eb0bec/15081972009.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/neologism_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/7471/4268/files/anunnaki_mythology.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/autoimmune_protocol_food_list.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/lyrics_to_i_want_candy_from_hop.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/minimize_file_size_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/the_last_lecture_book_in_kannada.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/51066807282.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9A 5244 bytes
SHA-256: ec0a77d6ae105bf98b253bcf40a2f9a7e066841177174388766a6d55fbc9f121
font_01_sfnt_off00009d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D4F 10800 bytes
SHA-256: 0c99762b2b9fc0af4a929a0f12ac0ca0465af787f5d342a8b4c1f8e4ab5e77dd
font_02_sfnt_off0000c204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC204 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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