Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f5a5236c98406d…

MALICIOUS

PDF

73.0 KB Created: 2020-08-12 06:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d10ad5d3a67f45285fa561a0528ea7cd SHA-1: f7f041e0bf69175b2955cf54e67bd764c2cfb164 SHA-256: 25f5a5236c98406d838787c0e8121da22d9e1e9c4e5d0a57ea05fb8b8e396f43
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and embedded link structure suggest a phishing lure, attempting to trick users into downloading further malicious content by posing as a Bible study resource. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=bible+study+book+of+james+pdf In PDF document text
    • http://tolaputap.hopeconnexion.org/uploads/1/3/1/6/131637136/rikujofag-saxixaluta.pdfIn PDF document text
    • http://files.insights4less.com/uploads/1/3/1/4/131407102/begabutirobuzi.pdfIn PDF document text
    • http://xisoripe.mrschaeffer.com/uploads/1/3/2/7/132740873/dab64994b015a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4842/6902/files/jafasolosunufimixaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/zusogepubetotetudopafota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/83792507132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/50020745708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1382/4927/files/nusupuvilewoseso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/502741950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xanixiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/ainslie_macleod_the_instruction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6858/7174/files/geography_alive_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2780/files/kizebisibal.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn 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 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 5520 bytes
SHA-256: 7538a7b801b14375a364d9459c13a2bba067566dfe6ced97c31fefc7ddf56719
font_01_sfnt_off00007845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7845 2656 bytes
SHA-256: 1620336da6018abf771a3b64a4739dbc5cc5761e5bcfd31f9568e9163b5e6178
font_02_sfnt_off0000834a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834A 5560 bytes
SHA-256: 778061bc12a3e7806d52a1624391743f2e703f8cd6887dddafb994fe6bb204ba
font_03_sfnt_off0000950a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950A 3048 bytes
SHA-256: e23308bb06bff427f4fe2d795198e016b2e9db23d45fd702446b15ef1a1323d1
font_04_sfnt_off0000a116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA116 2328 bytes
SHA-256: 6d897259d7ab9db79b0dbb16904cd99ff486aa7f4a475590a5d3e44eab6e0eed
font_05_sfnt_off0000abce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABCE 2604 bytes
SHA-256: d4cda5a9ecb2558448f754249352cd4d73a8f7efff03060ee9a54ebf713292d1
font_06_sfnt_off0000b6e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E4 2108 bytes
SHA-256: b3976ad28991401f3a7e0d936621f3963ed8fd81aff5bedc9e25cf6548b1959b
font_07_sfnt_off0000c0ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0BA 14608 bytes
SHA-256: 6a627f92c2f4bcb82db7d9368088baf3d752b8ed470710abeb431d497dfe9428
font_08_sfnt_off0000ee0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0C 16944 bytes
SHA-256: b4bd494035f53cc808e33b429063b31ae12b55b4bee792b64b083130b128eebc
font_09_sfnt_off00010675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10675 2608 bytes
SHA-256: d404f64416bf1ff5ad76d6d0ab30c7620aa9735638cfece5436aad8d6ad80edc

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