MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a cheat sheet, which is a common social engineering tactic to lure users into clicking malicious URLs. The PDF also contains a mass external link farm, indicating a potential SEO poisoning or link farm strategy. The primary malicious URL identified is https://ttraff.cc/pify?keyword=asymptotic+notation+cheat+sheet, which is flagged as a known malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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/pify?keyword=asymptotic+notation+cheat+sheet In PDF document text
- http://sawudag.literarypubcrawl.com/uploads/1/3/1/8/131856743/babupexiter-vudizamuwezamax-xogoxokaj-lefezotigijo.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/1/0430/4257/0401/files/bernard_marr_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3676/0485/files/genomikawevadifulelefizo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6367/0939/files/workforce_planning_strategy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2908/6887/files/87586009520.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3391/0681/files/64415159945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2599/6698/files/juzinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/8083/8309/files/aircraft_maintenance_manual_a330.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/nuzavewotebolelezerom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3441/8072/files/68265736536.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9814/2875/files/modele_attestation_de_fin_de_stage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8516/7766/files/86617631376.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9461/3924/files/mekijobenokekede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7147/9713/files/66523192462.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
🗂 Part of campaign:
johannaparkhurst.com
5 samples
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BB7 | 3036 bytes |
SHA-256: e7c06a0dc481494621a4847731f779ae7df0c404639b109f48eaaf73bcaa6cee |
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font_01_sfnt_off00007681.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7681 | 5136 bytes |
SHA-256: 464337cf38e3cfbc5413c1070ac0ad0e3dfc198e5e98810b3aabf2fbc2effa0d |
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font_02_sfnt_off000087d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87D3 | 17052 bytes |
SHA-256: 74c339e64f10e3b109e5fd74b96a543033990379162dee22950783f4312bcb2f |
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font_03_sfnt_off0000bc0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC0F | 16500 bytes |
SHA-256: 8aad148e045df3cb832ef8336bffe49c527cc6d00086f93a1b7b2c8e5c37648e |
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