Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfeeedb38aac8eb5…

MALICIOUS

PDF

51.2 KB Created: 2020-08-09 23:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f30caee9d817b9c70f7945dfe9dd75e SHA-1: 0c6b76085c70beaa66a2039a0a1417c4a7711c88 SHA-256: cfeeedb38aac8eb563897de8bf862def19b989029fe62acc29a9c3701ebebc37
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link that redirects to a known malicious infrastructure, specifically `https://ttraff.cc/pify?keyword=biblia+interlineal+pdf+gratis`. This indicates a social engineering attempt to trick users into visiting a malicious site, likely for further exploitation or credential harvesting. The document body, though heavily obfuscated, also contains the same malicious URL, reinforcing the lure. The presence of numerous external PDF links, many pointing to potentially compromised or malicious domains, further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=biblia+interlineal+pdf+gratis In PDF document text
    • http://files.melisandepage.com/uploads/1/3/0/7/130739021/4115966.pdfIn PDF document text
    • http://getit.muskegonbibleinstituteinc.com/uploads/1/3/1/4/131437736/3920375.pdfIn PDF document text
    • http://files.budapest-scooter-tour.com/uploads/1/3/0/9/130969053/2976785.pdfIn PDF document text
    • http://files.revncg.com/uploads/1/3/1/4/131483147/wedavero_pumipafeze_sisuv_firaz.pdfIn PDF document text
    • http://files.gabrielschristmas.com/uploads/1/3/1/3/131382030/4466559.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/1/0448/3943/6449/files/letter_for_college_admission.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/34946059474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/saratoga_springs_ny_zip_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3481/files/modosunetepiwogubujubiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/54693017015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vejut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2960/1175/files/namapexoxipowobuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/vidibesipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/greek_myths_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/axel_vervoordt_wabi_inspirations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/gasakudusov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000541a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x541A 2912 bytes
SHA-256: f1585241b59a1002e627af24859d8bddc2a41f5101ead6a7a290360bc82d6b36
font_01_sfnt_off00005e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7F 5076 bytes
SHA-256: c9e9b5fd092b037d9637e5b92f5a077a1950ab1cb7eba1d1f1797e0a1b780064
font_02_sfnt_off00006fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB4 1796 bytes
SHA-256: 7c849c819def30a085bff786074276235b33ec1bacd319f6d7fef517f6acebbf
font_03_sfnt_off000078a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A6 10124 bytes
SHA-256: 545ad1dbe53d4f9ec56baeba229f16bd370342e9d1a07f9c74fc0edefc9a416a
font_04_sfnt_off00009b5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B5A 16196 bytes
SHA-256: 8495dff0895936632a550c385781be6cc7fcd2ad0fc4c9557ca640f60c0837b1
font_05_sfnt_off0000b09c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB09C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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