MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=chinese+beginner+lessons+pdf', which is also flagged as a malicious redirector. This suggests the primary intent is to redirect the user to malicious infrastructure. The presence of numerous PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
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.
-
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.
-
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.
-
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.
-
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=chinese+beginner+lessons+pdf In PDF document text
- http://files.feat1stfilms.com/uploads/1/3/0/7/130738841/1530111.pdfIn PDF document text
- http://suduxag.ifbiblechapel.org/uploads/1/3/1/3/131380213/xezuvamaj.pdfIn PDF document text
- http://files.assumptiondads.com/uploads/1/3/0/8/130814169/vunubisodive-siliw-vebulod-pudafofekas.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/1/0433/9341/7366/files/91887551876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/zivowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81143567733.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8027/6375/files/power_of_attorney_act_1882.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6331/1512/files/76670653271.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7699/3695/files/berker_k1_katalog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7365/9292/files/sorenivobibuzorekadejema.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9295/9642/files/44882107600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/66396375485.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8298/1278/files/2774472935.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6370/4738/files/70026285363.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9051/8940/files/51068342749.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7746/7288/files/the_acid_alkaline_diet_for_optimum_health_pdf.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_off00006c6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C6C | 22516 bytes |
SHA-256: c3f9c43ad937cbd47d8953136cd87634d3798cebd2b6e605dda6727303cfb31c |
|||
font_01_sfnt_off0000b32d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB32D | 5140 bytes |
SHA-256: 659bc5e293e7717f0fde34addd58f533ce09c6e47791b8901a3f0398d6df3af8 |
|||
font_02_sfnt_off0000c498.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC498 | 11004 bytes |
SHA-256: 3cbcb3a46b5d1db53441ed01a8ca053481044733dac85718d12fe5d768a4eaaa |
|||
font_03_sfnt_off0000e907.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE907 | 16064 bytes |
SHA-256: bfa98e3e5eb820fe05909e99d62c13760e50a0f9f38c5f93f4058dc7f7fbcb36 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.