MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of external links, many pointing to domains that appear to be part of a link farm. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is presented as a download for an 'ebook reader android apk'. This suggests a social engineering lure to drive traffic to malicious sites. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent.
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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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.cc/pify?keyword=ebook+reader+android+apk In PDF document text
- http://tepulibux.ejhayesorchestra.org/uploads/1/3/0/7/130775085/af610708.pdfIn PDF document text
- http://jodedogew.lionsdenarms.com/uploads/1/3/1/4/131437919/mifibasubiz.pdfIn PDF document text
- http://files.thecuriouscatgiftshop.com/uploads/1/3/2/6/132681596/puwakir.pdfIn PDF document text
- http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
- http://sigotom.carpetcleaninghuntsville.com/uploads/1/3/0/7/130739732/kijopotaren-lafemedugupig-ziguzovof.pdfIn 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/1/0437/3128/8215/files/updated_periodic_table_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/9496/2332/files/mumozadosamidasodare.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3849/9235/files/9258225155.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4927/1975/files/ssc_stenographer_practice_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0131/5491/files/wakawudidelos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/debupiwarokobazogisefof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/68720325378.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7492/0347/files/78085119517.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4849/1415/files/fuwefurukafegijesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6660/5219/files/manibatuxezogivo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2008/2590/files/257805311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/xeduzotetesefefofovatan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9208/9759/files/45794286264.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68E3 | 4612 bytes |
SHA-256: 2ebfcccc4132af7e095f7509d376e0deb5bde60076a3f1144d75ef36db9edd66 |
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font_01_sfnt_off00007881.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7881 | 10204 bytes |
SHA-256: e97689f61ff7f34aea64e3cdfead9a471c1c462aafc5ffd77826d52b177807dc |
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font_02_sfnt_off00009b6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B6A | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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