MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which point to a redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=write%20on%20pdf%20apk%20android', indicating a lure related to PDF manipulation on Android. This suggests the document is designed to redirect users to malicious content or downloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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/wb?keyword=write%20on%20pdf%20apk%20android In PDF document text
- http://files.retrodollseurope.com/uploads/1/3/1/3/131398066/8ff2a2a.pdfIn PDF document text
- http://xupunibep.westspringfieldbouncehouserentals.com/uploads/1/3/0/8/130873851/kafadosavebixi.pdfIn PDF document text
- http://files.deadmeatband.com/uploads/1/3/0/8/130814676/welapuguz.pdfIn 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/1/0430/9286/9281/files/91345711493.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5287/5424/files/algoritmo_rsa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0252/7895/files/free_web_design_course.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2651/4077/files/98626893209.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5799/5160/files/64260519361.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9948/0473/files/62085272771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0954/7174/files/mamat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8353/9366/files/cambridge_igcse_english_lesson_plans.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2562/8316/files/ai_for_game_developers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7089/7824/files/mubakorugosivedo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5598/8387/files/25009272594.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5126 | 3028 bytes |
SHA-256: c2da8f7ea546b9ab1673fc03cf322b62eb54d8c0919339a5e63ae0470e5aaaf6 |
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font_01_sfnt_off00005bef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BEF | 4904 bytes |
SHA-256: 0261f26aec13d778b33796b1288231596fcda3047d8442e87f39169de93143ed |
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font_02_sfnt_off00006cc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CC0 | 10080 bytes |
SHA-256: 49159daba24b82eabb01f2007cfe9c1351f65c3563efbaa0077757adbc53a84c |
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font_03_sfnt_off00008f83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F83 | 16296 bytes |
SHA-256: 5663d8578250f824917609d3eb76e3efe1318610afd7b77be9e2258255c4b957 |
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