MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a 'B. sc 2nd year chemistry book pdf' and the malicious URL. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be a social engineering lure to trick users into clicking the malicious link.
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.com/pify?keyword=b.+sc+2nd+year+chemistry+book+pdf In PDF document text
- http://files.mishibloom.com/uploads/1/3/0/8/130874535/wuzobonigatan.pdfIn PDF document text
- http://fixosifip.peezda.com/uploads/1/3/1/8/131856185/kenokonezirun.pdfIn PDF document text
- http://files.embcmanning.org/uploads/1/3/0/7/130740211/pesavabowebekuv_rufaguje_wifunodoxuni.pdfIn PDF document text
- http://wofusosam.5starbuild.com/uploads/1/3/0/7/130776257/b467bad7.pdfIn PDF document text
- http://jidit.aglimpseofhues.com/uploads/1/3/1/4/131454696/kexudusajep_divib.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
- https://cdn.shopify.com/s/files/1/0450/7874/1155/files/anesthesia_and_analgesia_in_laboratory_animals_2nd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9793/9349/files/87552226054.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7540/3936/files/88549273621.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5682/3453/files/14479217095.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0858/7938/files/nuxoxidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0496/0661/files/61946825927.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4272/5275/files/18319754798.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8098/1403/files/wakejunuvifipabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5720/9753/files/bojulufemuzegol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/7433/3346/files/10349121552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9864/5404/files/rukhmar_flight_path.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3945/7431/files/census_survey_in_research_methodology.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007cdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CDF | 5884 bytes |
SHA-256: 68901f1d191fdc4ed9d6ac3cc3ccea5cd9be125e6d8a6d1006734f5472017dd8 |
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font_01_sfnt_off000090b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90B2 | 3204 bytes |
SHA-256: 55635b50bad29c6b04cd9b4d5dd064b78be6c29eafc981c666da6fe4470a6799 |
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font_02_sfnt_off00009da2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DA2 | 2320 bytes |
SHA-256: 7bb91423d63eb6bd7c2657278979848d60b7d38679106ec23dbd755ba6ab3d32 |
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font_03_sfnt_off0000a7f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7F2 | 11392 bytes |
SHA-256: 8bee04ac87b6eb7913bc5944a0314b108dc9f8a6afb74295826324176ec81268 |
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font_04_sfnt_off0000cd41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD41 | 16224 bytes |
SHA-256: 4362e686776cae9b5e877a8e5de4a1ff5ae9966626bcf1046762b8e3a01bbea2 |
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