MALICIOUS
274
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious Link
T1566.002 Spearphishing Attachment
The PDF document contains a link to a malicious redirector, ttraff.cc, which is disguised as a "Kasper trial reset" lure. The document also instructs the user to disable security software and provides a password for an archive, indicating a multi-stage attack. The presence of numerous external PDF links suggests a link farm for SEO poisoning or traffic generation. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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/wix?keyword=kasper+trial+reset In 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://static.usrfiles.com/ugd/b8c837_253cc0ff78e042fdb1ed281ec2f3713b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_75d5d82399a74aec98401ac42c2378e0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_5ab1b82ed94e4ee587a8b5fe8d80a4df.pdfIn PDF document text
- https://static.usrfiles.com/ugd/824332_b92abf10ff014528ae198eac654f0856.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4737/7301/files/19731148987.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7483/7918/files/kakizedorolugepirux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6074/8695/files/15769979941.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6444/2521/files/the_internet_archive_movie_hollywood.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4295/5687/files/kunavugejeraw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5247/3243/files/36227542145.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/varunedu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1122/7300/files/65175581345.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6467/8817/files/bulepoxer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0360/8214/files/netetogirapatuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/1954/3199/files/86645023823.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_off00005f7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F7D | 4352 bytes |
SHA-256: a9ada17af99e610b6ff964e2fdc3cba561bb398b5d8488391dbc0aab9c07e225 |
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font_01_sfnt_off00006e4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E4E | 9948 bytes |
SHA-256: e4e52655ebab677102ce027535a1c7e026a2238a411c10ec265f78ddb9ba1ac3 |
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font_02_sfnt_off00009098.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9098 | 16100 bytes |
SHA-256: 2bac0d7445fe5768be44ad7a0943804bdfa4a71883f7703ca85e4e7e3f76abd8 |
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font_03_sfnt_off0000a561.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA561 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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