MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a 'membrane transport concept map answer key'. The PDF also hosts a large number of other links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector confirms a high likelihood of a phishing or malware delivery attempt.
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=membrane+transport+concept+map+answer+key
- http://vorobap.greatlakesgreatstories.org/uploads/1/3/2/6/132682883/9750394.pdf
- http://files.patrickdixon.net/uploads/1/3/1/4/131483336/xevupoxawuwogafinobi.pdf
- http://files.newheartdance.com/uploads/1/3/1/3/131384589/vevulo_nixepu_jilizel.pdf
- https://cdn.shopify.com/s/files/1/0430/7098/0245/files/70708998122.pdf
- https://cdn.shopify.com/s/files/1/0447/0826/6137/files/chrome_manager_mac.pdf
- https://cdn.shopify.com/s/files/1/0431/1141/5959/files/balanitis_zoon.pdf
- https://cdn.shopify.com/s/files/1/0429/8702/8641/files/zomaboxozogi.pdf
- https://cdn.shopify.com/s/files/1/0432/4976/2459/files/cantigas_de_maldizer.pdf
- https://cdn.shopify.com/s/files/1/0438/9647/1707/files/pilob.pdf
- https://cdn.shopify.com/s/files/1/0433/7542/7735/files/damojemibevagikora.pdf
- https://cdn.shopify.com/s/files/1/0434/5289/1297/files/dinifafedifamidazoxurewux.pdf
- https://cdn.shopify.com/s/files/1/0434/7225/7181/files/xonoligujamexux.pdf
- https://cdn.shopify.com/s/files/1/0445/6205/5327/files/acoustic_guitar_tabs.pdf
- https://cdn.shopify.com/s/files/1/0437/6998/7221/files/baluromibiderevezobig.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1402/files/dovoxap.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_off00004fe4.bin6588fbb3abd58df79d88160684552835de7a5b6ad39a31b5f9d171cb46f092a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FE4 | 5452 bytes |
font_01_sfnt_off0000626d.binc49de3df1c247d2c4e8c148c17b5db0c081509a61b315771b343ac14a46b2cb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x626D | 9352 bytes |
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