MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm and a direct link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains the same URL and keywords related to 'piano sheet free', suggesting a lure. The presence of a visible LOLBin command execution instruction indicates the potential for further malicious activity, likely initiated by the redirector.
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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.ru/pify?keyword=one+summer%2527+s+day+piano+sheet+free In PDF document text
- http://files.isabelhowlett.shop/uploads/1/3/1/3/131380440/nobogixubi_befivuw.pdfIn PDF document text
- http://pukelevi.juliannawells.com/uploads/1/3/0/7/130775607/nudalegubofolasim.pdfIn PDF document text
- http://masojis.hawkinsortho.net/uploads/1/3/2/8/132814074/45186e018aac.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/1/0438/2621/7120/files/non_conformance_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0390/2112/files/powershell_split_string.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6503/9261/files/kamawerazenukagijuwaxena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/sobovarewopafaliregokik.pdfIn macro / runtime command snippet
- https://cdn.shopify.com/s/files/1/0429/5216/3481/files/sidofixajaxujufekurugawod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3883/2800/files/node_read_json_file.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4218/6150/files/xavupamagerobaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23929268289.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/93911604495.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8280/0542/files/talugatalukalafuseso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6529/4491/files/functions_math_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4620/5602/files/javascript_timer_countdown.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
- https://cdn.shopify.com/s/files/In macro / runtime command snippet
- 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_off00005a15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A15 | 8320 bytes |
SHA-256: ddeccfc0d5d4da11ddc449729561dbb2507b898cf75bbe3d0a3800dddb2cf0a5 |
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font_01_sfnt_off00007647.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7647 | 5412 bytes |
SHA-256: 9f95a932c7c070ecf2f0d9c80a26bb427d9e9a9cc38776a5cd288a50141c8ce0 |
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font_02_sfnt_off00008893.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8893 | 15144 bytes |
SHA-256: af74b8266b30d262a26095bc9c0d0e2ac4924306fb9a314be59140ae0ea0ed53 |
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