Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c3864c89000953a…

MALICIOUS

PDF

42.9 KB Created: 2020-09-16 19:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5e313c7cb34bb74db276a2c5a34ec8c SHA-1: d7dbc08e6064470de019bb57167461998fb43b84 SHA-256: 7c3864c89000953a034cbff736e65a91b6a477d1ef7b963bf111fb7d70e06a85
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of embedded links, with heuristics indicating a link farm designed to redirect users. One critical heuristic identified links to known malicious redirector infrastructure, specifically 'https://ttraff.club/wix?keyword=simply+filling+ww'. The ML classifier also strongly flagged this PDF as malicious. The document body is heavily obfuscated and contains some of the URLs, suggesting an attempt to lure users 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=simply+filling+ww In PDF document text
    • http://domilidil.rooted-organics.com/uploads/1/3/1/4/131438583/gotofamo.pdfIn PDF document text
    • http://files.lamodastylist.com/uploads/1/3/0/9/130969408/rimofewukuzuba_nurapap_tizavedad_zawuzidixav.pdfIn PDF document text
    • http://files.harveyaraton.com/uploads/1/3/1/3/131380756/xapoxemi.pdfIn PDF document text
    • http://files.ddsp.ca/uploads/1/3/1/4/131483361/bogujo.pdfIn PDF document text
    • http://files.thecelticoracle.com/uploads/1/3/1/4/131452944/purifi_ginefiri_xuduto_fafoka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://db7b97ba-2309-4daa-941b-7c7363180c8b.filesusr.com/ugd/e643da_8e27b0bee3364dc58b7721229f8689f3.pdf?index=trueIn PDF document text
    • https://eec1d889-bf61-4be7-856c-d2a9fc091142.filesusr.com/ugd/f95141_e17e20c50b7d4025b5894e5ef722c2ed.pdf?index=trueIn PDF document text
    • https://42c96d3b-411e-4100-a0cc-3e42c25e3a09.filesusr.com/ugd/154db6_20c8913494244b0d9413fc98e1a82726.pdf?index=trueIn PDF document text
    • https://0fffb673-8a32-4f47-96ad-9225d8414b7d.filesusr.com/ugd/44b221_6bc09035863f45bbb63047058fad88f6.pdf?index=trueIn PDF document text
    • https://4d712247-bd6a-489f-9c58-b1cfb92fc18a.filesusr.com/ugd/77941b_7d316f387e6345f697b5f487b76d8379.pdf?index=trueIn PDF document text
    • https://f3f86be2-2a53-4341-964e-ae61dd4f101b.filesusr.com/ugd/f459ea_ff08e789f8474950a6226a05b1862554.pdf?index=trueIn PDF document text
    • https://07083912-2c27-4c12-af74-68758890d8a0.filesusr.com/ugd/60ffa2_fddb0b089cc943bba0dc28bb5f5b72f9.pdf?index=trueIn PDF document text
    • https://5e1245fc-8ab0-4dc5-b493-b53b59c79c35.filesusr.com/ugd/a8ca0f_76513369ef884510986fc9d388f63dc8.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/66960143861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/runescape_dungeoneering_sagas_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/la_fitness_membership_cancellation_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3460/1640/files/waterfall_model_advantages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2630/3134/files/college_algebra_clep_study_guide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A47 5032 bytes
SHA-256: af7ba9052398b8a2e6ab67dbb6adc73e76fc64217886cf7daf378e76f983e8cc
font_01_sfnt_off00007b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7C 10336 bytes
SHA-256: f7751d808101af13f6ee762569d663945b9a13bfc23d5c12f4f3b2aea7f7a28a