MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the string 'Usps direct mail template' and the malicious URL, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially spread malicious content. The ML classifier also strongly flagged this PDF as malicious.
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.cc/pify?keyword=usps+direct+mail+template In PDF document text
- http://files.patronus-security.com/uploads/1/3/1/6/131606789/xetagiwizasopasin.pdfIn PDF document text
- http://tidev.sparklingimagedesigns.com/uploads/1/3/1/4/131437296/4693198.pdfIn PDF document text
- http://files.easyindonesian.com/uploads/1/3/0/7/130738622/8225274.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/1/0437/2335/8358/files/35046784568.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6523/5866/files/php_password_protect_pages.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4066/7808/files/saints_row_4_nexus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5457/0399/files/wevinaxagubukegixakoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0722/9597/files/bijarunerixoxigexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4911/5029/files/30220750064.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6154/1014/files/definition_of_talent_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4520/3618/files/carbozinc_859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2741/4696/files/fumusokilevibesujivu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0059/3557/files/el_calvinismo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9150/1990/files/kofuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2832/4257/files/xefilutulitujun.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_off0000a590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA590 | 5212 bytes |
SHA-256: 1026d73119fd041ba643059be5fc79591c79c57a2dab14c909801bf57e76c043 |
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font_01_sfnt_off0000b723.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB723 | 1804 bytes |
SHA-256: 74c23c0f939b076d9d446dc693c42f12b7620c99a5343661a2b43af8758084f5 |
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font_02_sfnt_off0000c004.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC004 | 11156 bytes |
SHA-256: fabc1004e6152b15bca91971e0e3405b4181fa44ecda2ec820ab4f4e539e12cc |
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font_03_sfnt_off0000e4be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4BE | 16100 bytes |
SHA-256: 1b4b27cd429d9800ce6de6bc8be2d1c6382da676ed598ddfeffce0e3d1a2ff1c |
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