MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/wb?keyword=pdf%20bestanden%20samenvoegen'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to trick users into clicking malicious links. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam 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.ru/wb?keyword=pdf%20bestanden%20samenvoegen
- http://files.bulbsoup.com/uploads/1/3/0/7/130738739/runap-gajipuditibadur.pdf
- http://files.floridafraternalorderofeagles.com/uploads/1/3/2/8/132814136/ef88482.pdf
- http://files.envisionavila.org/uploads/1/3/0/7/130775509/e30d4daf0b2.pdf
- https://cdn.shopify.com/s/files/1/0431/3609/0267/files/54052239863.pdf
- https://cdn.shopify.com/s/files/1/0429/1795/3702/files/vinofunederoki.pdf
- https://cdn.shopify.com/s/files/1/0432/5349/8014/files/95168339191.pdf
- https://cdn.shopify.com/s/files/1/0430/0124/9955/files/fakinibofemibedapepado.pdf
- https://cdn.shopify.com/s/files/1/0437/8315/9957/files/mupof.pdf
- https://cdn.shopify.com/s/files/1/0433/2113/1161/files/mechanical_engineering_formulas.pdf
- https://cdn.shopify.com/s/files/1/0432/7027/5237/files/94587557703.pdf
- https://cdn.shopify.com/s/files/1/0431/2819/3184/files/tamil_beat_song.pdf
- https://cdn.shopify.com/s/files/1/0439/6479/2990/files/xivofovisofosoxixem.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/wujejifuvesenubu.pdf
- https://cdn.shopify.com/s/files/1/0436/9950/3254/files/behaviour_modification_book.pdf
- https://cdn.shopify.com/s/files/1/0440/1093/0341/files/algebra_high_school_textbook.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_off00005622.bined5c2954537737c586a3bbea11a98d6e46b0f769e019b3e6aa65a764fa493f17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5622 | 5300 bytes |
font_01_sfnt_off00006822.bin5b62df4549d21b7958176f8b52c5b1000bd6081cb72085913f36e9677825aa37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6822 | 10168 bytes |
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