Malicious PDF — malware analysis report

Static analysis result for SHA-256 64550ecde6f3635e…

MALICIOUS

PDF

45.3 KB Created: 2020-08-15 01:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f34f0efdeaaced41bd2b884f7f6b783 SHA-1: 3d158beff33bad0c36080abd38cb4024370352e8 SHA-256: 64550ecde6f3635e1586d607d2647da69f3417f6eac60ad28ec549705fcaa462
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'https://ttraff.com/pify?keyword=file+manager+plus+premium+apk'. This suggests a phishing or malware distribution attempt, likely using a lure related to 'file manager plus premium apk'. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=file+manager+plus+premium+apk In PDF document text
    • http://files.idrawshoedesigns.com/uploads/1/3/1/4/131408798/mujuji_sujexudofazif_tilapezusiwazi_vibizezeparusax.pdfIn PDF document text
    • http://folusixav.agbcontracting.com/uploads/1/3/0/7/130738546/bapeb_winekuwasefek.pdfIn PDF document text
    • http://fumiwojov.babylonbanknotes.com/uploads/1/3/0/8/130814310/lujusosol-mugijovefuk-digesapevol-winojixixavom.pdfIn PDF document text
    • http://kekopofo.tpoopen.com/uploads/1/3/1/4/131407227/xozebipebupemex.pdfIn PDF document text
    • http://gojinebo.shirtwithsugar.com/uploads/1/3/0/7/130775181/8806794.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://cdn.shopify.com/s/files/1/0435/5109/6991/files/super_mario_64_ds_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/nekugukugunuter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/stool_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/fusionner_avec_acrobat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/bar_bending_machine_electrical_circuit_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/fundamental_financial_accounting_concepts_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9643/files/gesofiravafewopiwosopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60801944673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/giorno_theme_piano_sheet_music_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0665/5642/files/7670900149.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 1

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_off000066cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CF 4848 bytes
SHA-256: beb2a6c8fb9f4efe153c3e02d8e1c96885bfc5f8d169ef15364d790678460cd3
font_01_sfnt_off0000771e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 10296 bytes
SHA-256: ef06e80610ce22dce3f34600ed1fd8167439f450d035b886053ca3fddf79c12d
font_02_sfnt_off00009a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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