MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=belajar+coding+dasar+pdf', indicating a lure related to 'learning basic coding pdf'. The presence of multiple Shopify URLs, some flagged as benign and others unknown, suggests a link farm or SEO manipulation tactic to distribute the malicious PDF. The ML classifier strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=belajar+coding+dasar+pdf
- http://situj.sdpermits.com/uploads/1/3/0/9/130969762/82d8e4.pdf
- http://files.lilachbar-ami.com/uploads/1/3/2/3/132303099/xidisev.pdf
- http://files.singersandactorsworkshop.com/uploads/1/3/2/7/132740218/mubazaxumadajag.pdf
- https://cdn.shopify.com/s/files/1/0447/5843/3943/files/abakada_tagalog_words.pdf
- https://cdn.shopify.com/s/files/1/0428/9118/2243/files/muwomuf.pdf
- https://cdn.shopify.com/s/files/1/0449/4458/8959/files/capitulo_etnico_acuerdos_de_paz.pdf
- https://cdn.shopify.com/s/files/1/0432/6424/5925/files/approaches_to_educational_research.pdf
- https://cdn.shopify.com/s/files/1/0429/1883/8435/files/53988576444.pdf
- https://cdn.shopify.com/s/files/1/0433/7342/8888/files/4741216720.pdf
- https://cdn.shopify.com/s/files/1/0432/2466/2173/files/gadulidirilutivuvebidi.pdf
- https://cdn.shopify.com/s/files/1/0431/3497/6157/files/palijafazikerudivodona.pdf
- https://cdn.shopify.com/s/files/1/0429/8188/4063/files/medical_case_study_books.pdf
- https://cdn.shopify.com/s/files/1/0433/8447/1710/files/72007591258.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061b8.bindc544237d443af2e4e49adad9eb5b1e86f475e89d7e27e63be4c3ba4f2f2f31e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61B8 | 5448 bytes |
font_01_sfnt_off00007457.bin3e3606c9874b3fe2c35db116be9cd72ac721c6f1fde36fa1de2bc0d578017d9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7457 | 10136 bytes |
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