MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bpp+acca+p4+study+text+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. The ML classifier also 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=bpp+acca+p4+study+text+pdf
- http://files.kamibeckford.com/uploads/1/3/1/3/131378990/vamozara_papanet_rowarexanu.pdf
- http://seluzo.genawave.com/uploads/1/3/1/3/131398177/detanu_kavawape_zopenuri.pdf
- https://cdn.shopify.com/s/files/1/0429/2670/2755/files/49714991474.pdf
- https://cdn.shopify.com/s/files/1/0428/0470/7491/files/46482669416.pdf
- https://cdn.shopify.com/s/files/1/0437/8948/4189/files/97262915999.pdf
- https://cdn.shopify.com/s/files/1/0436/6965/1606/files/45088436290.pdf
- https://cdn.shopify.com/s/files/1/0432/5202/3458/files/76166960158.pdf
- https://cdn.shopify.com/s/files/1/0432/1977/9741/files/terminal_network_commands.pdf
- https://cdn.shopify.com/s/files/1/0437/1087/3750/files/diphenoxylate_davis.pdf
- https://cdn.shopify.com/s/files/1/0434/7301/0840/files/5805821355.pdf
- https://cdn.shopify.com/s/files/1/0435/2599/6698/files/zulfiqar_bengali_movie_song.pdf
- https://cdn.shopify.com/s/files/1/0432/8092/4837/files/5390455939.pdf
- https://cdn.shopify.com/s/files/1/0437/6517/0334/files/uc_browser_mini_app_old_version.pdf
- https://cdn.shopify.com/s/files/1/0430/1278/4277/files/61442065906.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_off000046b1.binff5a3ac42019839ba6df7e5eb5dc41976f795c689274adb813df62a218fde92f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46B1 | 5328 bytes |
font_01_sfnt_off000058f2.bin267d6b8f05acea690772ec3041f5feeddb9ca1284449da421f5d7d5decd12f2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58F2 | 10124 bytes |
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