MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF file contains a deceptive document body referencing 'Chamsys show file' to trick users into clicking embedded links. Analysis reveals a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating that one of the embedded URLs, specifically 'https://ttraff.com/pify?keyword=chamsys+show+file', leads to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, with 'https://cdn.shopify.com/s/files/1/0432/8144/9126/files/xolotatokekunerenufum.pdf' being the first identified in this farm. The file's purpose is to drive traffic to malicious sites through social engineering.
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=chamsys+show+file In PDF document text
- http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdfIn PDF document text
- http://files.nick-paul-dive.com/uploads/1/3/0/8/130873923/3243546.pdfIn PDF document text
- http://files.portlandmainemassage.net/uploads/1/3/1/8/131856995/lixajidavigamo-wutereta-zurepejobelur.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/1/0432/8144/9126/files/xolotatokekunerenufum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9752/2329/files/78609210824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5713/5257/files/43831372653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0979/4463/files/zozivefovala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4080/6824/files/wubowoturagelosonazejuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6353/3977/files/62774484245.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/meripomovegutosanufawije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9102/4280/files/74380002237.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2149/2643/files/44787536445.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4456/1318/files/55608606623.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2771/0630/files/nidix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9993/1295/files/tipenesupibuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6081/3208/files/miwumavonurorusu.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA515 | 4732 bytes |
SHA-256: b19b62a2f600d98b1c16e0c34d7ac40741a31b49ad5d8557a37122ebe315c6da |
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font_01_sfnt_off0000b548.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB548 | 12908 bytes |
SHA-256: 62d46b8ad6ebb057852ddd64a6faf8ce491a5f5943fcdac44a099e69e64ecd4b |
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