Malicious PDF — malware analysis report

Static analysis result for SHA-256 0644cd674f2efee0…

MALICIOUS

PDF

50.1 KB Created: 2020-08-23 18:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b27ebce430c873e1f19b115eae00bfa SHA-1: 0a7a09da91ba05896e2f54f9076bc7c3c7ea2261 SHA-256: 0644cd674f2efee0f2abcfbe5987a363087d140e4a393ce463159d25f7327f29
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body text, though heavily obfuscated, includes the URL 'https://ttraff.cc/pify?keyword=rpg+maker+2000+android+apk', suggesting a lure to download potentially unwanted software or malware. The presence of a large number of external links, including benign Shopify links, indicates a link farm SEO tactic to 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=rpg+maker+2000+android+apk In PDF document text
    • http://files.scrappingfairy.net/uploads/1/3/0/7/130738914/kanotuxadinivuvas.pdfIn PDF document text
    • http://files.christiefencing.co.uk/uploads/1/3/0/7/130775441/vexexixeve_wexeruvodusek.pdfIn PDF document text
    • http://bytlly.com/18src3In 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/1/0439/2216/1832/files/biological_diversity_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8439/6184/files/adrenalina_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1248/files/infinitive_of_purpose_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/bivixowajudove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8674/9600/files/nursing_article_critique_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/vertical_axis_wind_turbine_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/xikinefemisuguto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/3236556267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6588/2277/files/dumbbell_workout_routine_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/berudadizejejon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/52968105728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6812/1237/files/25744824419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8898/6783/files/sotoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vixegenosevisime.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C60 4412 bytes
SHA-256: 0472f170e6066af02d33747607f3742826c4106455cde3c9031964d852293f25
font_01_sfnt_off00006bce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 5412 bytes
SHA-256: ad330f4cd97198ef5ed4c2138e8313bc13b84f6060c339a7e7d3b9f97b0ddb27
font_02_sfnt_off00007e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E23 12600 bytes
SHA-256: e68ead3f349263440ed8187db87f285f7bb73817c282ad4d075cef3b180b633d
font_03_sfnt_off0000a52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA52C 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e