MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as an answer key, intended to lure the user to a malicious site. The PDF also hosts a link farm, suggesting an attempt to manipulate search engine results. The presence of a visual download button further supports a deceptive social engineering tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.link/pify?keyword=11th+half+yearly+answer+key+2018+chemistry In PDF document text
- http://files.theturfsmurf.co.uk/uploads/1/3/0/8/130874493/givawepuweruz_tupap_lofupul.pdfIn PDF document text
- http://files.straffordparkhoa.com/uploads/1/3/1/4/131437363/penoxoremasatu_xufaxomabejak_xidikijux_fosage.pdfIn PDF document text
- http://files.gfitlifestyle.com/uploads/1/3/1/3/131384468/378092.pdfIn PDF document text
- http://monupaxot.derekdbass.com/uploads/1/3/1/4/131438044/luwimexalawe-nekovubomol.pdfIn PDF document text
- http://files.georgetownquintet.com/uploads/1/3/1/4/131454523/luzibuwitanubub.pdfIn PDF document text
- http://fedorahosted.org/lohitIn 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/1/0435/5126/0823/files/bc_landfill_gas_management_facilities_design_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8396/4324/files/penabebifibiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/miniwokozekesesoxuzawok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4350/9656/files/asterisk_war_manga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6431/0425/files/zilusalokamirazele.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5294/7863/files/wofazinej.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 7
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00012b66.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x12B66 | 19852 bytes |
SHA-256: a4daab8ead0c4289fa10a2253a566ed1eb6b71301daff53a8c3b4a1d9ae5dfc1 |
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font_00_sfnt_off000118e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E6 | 5480 bytes |
SHA-256: c6ff54f2a8c543d017bee1cac38327e5b7850ac9b9061b6e48d3404ca5d1570c |
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font_02_sfnt_off000156af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156AF | 1944 bytes |
SHA-256: 4a7a17ef0ba0b87d3101fb253220c21ebf70d31c9b38729fcc60725578a726a3 |
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font_03_sfnt_off00015ff7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FF7 | 15452 bytes |
SHA-256: 17c73a16fdb10de6bda95d48c1e891cbd0645169e113fd5038553f85c14e2205 |
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font_04_sfnt_off00018faa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18FAA | 16364 bytes |
SHA-256: a226e132c99cb91c210d2dd1457d2aca660610af9a4b991948350cc7bb3c1781 |
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font_05_sfnt_off0001a5b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A5B5 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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font_06_sfnt_off0001b3b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B3B4 | 3616 bytes |
SHA-256: fa88534278b7996036ad4339e2b546ede69c8c086b5381ad50ca868be81e9280 |
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