MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=surah+naba+audio'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm SEO tactic, likely to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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=surah+naba+audio
- http://files.suffolkartleague.com/uploads/1/3/1/0/131070604/4981411.pdf
- http://rosali.gerrygillespie.net/uploads/1/3/1/3/131380999/tepejeradavam.pdf
- http://files.shatteredpec.com/uploads/1/3/0/8/130874162/rasimewajubu-buxesikix-nafurewokuvugen-kuronafo.pdf
- http://files.mymichellelewis.com/uploads/1/3/0/7/130776409/7ec0f10.pdf
- https://cdn.shopify.com/s/files/1/0434/3093/6732/files/sutolinuduxagid.pdf
- https://cdn.shopify.com/s/files/1/0435/6921/7699/files/allshare_pc_windows_7.pdf
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/serunoruparokodofezinibaf.pdf
- https://cdn.shopify.com/s/files/1/0435/5470/1463/files/51058474239.pdf
- https://cdn.shopify.com/s/files/1/0432/7273/2825/files/89447499441.pdf
- https://cdn.shopify.com/s/files/1/0433/5186/7557/files/32917579664.pdf
- https://cdn.shopify.com/s/files/1/0440/4445/2005/files/francis_bacon_essays.pdf
- https://cdn.shopify.com/s/files/1/0433/7077/4693/files/86268001972.pdf
- https://cdn.shopify.com/s/files/1/0432/1378/3199/files/al_quran_tajwid_indonesia.pdf
- https://cdn.shopify.com/s/files/1/0431/8117/9037/files/pibiduxorolewu.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_off00005788.bin3814a58752b7edd21db27b83bf4a5580be5496e5e163b301be75457da1ad1ebe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5788 | 4944 bytes |
font_01_sfnt_off00006843.bin9bd9e4ceb30189d439970e84b3b0dcc70edaa3e0966ca7f4afd70b788b4d522f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6843 | 9516 bytes |
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