MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body itself contains text that appears to be SEO-optimized content, further supporting the idea that the links are intended to drive traffic to malicious sites.
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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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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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=chakravyuha+songs++free+2016 In PDF document text
- http://files.healthylivingtc.com/uploads/1/3/1/3/131381544/kidaguxunasufonune.pdfIn PDF document text
- http://files.maddiebooks.com/uploads/1/3/2/6/132682792/zesatawuvemu_zofabaxalogezaj_mavujenatijit.pdfIn PDF document text
- http://xiwawuzi.boostsportsconsulting.com/uploads/1/3/1/3/131380429/nexabu-wotegu.pdfIn PDF document text
- http://files.bhsclassof78.com/uploads/1/3/2/3/132303351/pobemekofutefel.pdfIn PDF document text
- http://datadebel.intucoaching.com/uploads/1/3/1/4/131453574/862fb52db.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/1/0429/5570/2425/files/muratozofoxudenatularilex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4897/1938/files/easy_beginner_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1224/1046/files/bejulanadowidaxeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/87113879237.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/6477/5076/files/general_aptitude_test_questions_and_answers_with_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9671/7977/files/80982495026.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8307/1642/files/high_voltage_breakdown_tester.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9938/1146/files/14514557019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9746/4731/files/jeliworib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/majusotogozarow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0899/1140/files/96200399818.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7170/9092/files/gupodatasizozelibesagodag.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_off00004f9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F9B | 5608 bytes |
SHA-256: 1d1791df3b2f62ae86aaadcda7804ca0c3f958d7a7998aa8153ca6dea5a0932a |
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font_01_sfnt_off000062c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62C2 | 2092 bytes |
SHA-256: 6e5de5c6bcb7fdd8c5ca0d25823a8f80e6c764803c1b732dbc9c425a5c0f8ea5 |
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font_02_sfnt_off00006c68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C68 | 10200 bytes |
SHA-256: 2a2664c283829f8741b134a66cafdae7e2d59ad9bba7fb48bccd4e3edf5d96d5 |
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font_03_sfnt_off00008f94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F94 | 16076 bytes |
SHA-256: 0b36605a6e61a74a7f8c2aef65bffbce38398019a9a977160a4dcabe0d880f8b |
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