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, pointing to ttraff.cc. Additionally, a PDF link farm heuristic indicates the presence of numerous external links, with the primary one leading to a Shopify domain. The ML classifier also flagged this PDF with high confidence. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=academic+performance+questionnaire%2528+apq%2529', is the primary indicator of malicious intent, likely serving as a lure for further malicious activity.
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=academic+performance+questionnaire%2528+apq%2529
- http://files.kathrynrobertsauthor.com/uploads/1/3/1/3/131398214/faf9432e4.pdf
- http://vemofina.emilywood.info/uploads/1/3/1/4/131453133/addc22c711.pdf
- http://files.awgoldens.com/uploads/1/3/0/8/130814258/rufuguwiwuzu.pdf
- http://files.glomcdonald.com/uploads/1/3/0/7/130739280/rubudusuwuzavip_zusivun.pdf
- http://files.neaveanimals.com/uploads/1/3/1/4/131437532/2ffe776b0c1.pdf
- https://cdn.shopify.com/s/files/1/0434/4571/5109/files/xezevux.pdf
- https://cdn.shopify.com/s/files/1/0432/3983/3763/files/eu4_client_state.pdf
- https://cdn.shopify.com/s/files/1/0438/0862/0701/files/gikexoxukebip.pdf
- https://cdn.shopify.com/s/files/1/0431/0453/4692/files/pdf_historia_clinica_psicologica.pdf
- https://cdn.shopify.com/s/files/1/0429/2440/8988/files/gijemowotezuwesajokop.pdf
- https://cdn.shopify.com/s/files/1/0438/1969/6288/files/libro_de_robotica_para_nios.pdf
- https://cdn.shopify.com/s/files/1/0433/2093/4558/files/glycemic_index_definition.pdf
- https://cdn.shopify.com/s/files/1/0431/2816/0420/files/7428966310.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ad39.bin4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD39 | 2828 bytes |
font_01_sfnt_off0000b734.bin6f0b6ecd0655825152c794595c0eba68db936d995d23285fd2515bd3a40455aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB734 | 5536 bytes |
font_02_sfnt_off0000c9f7.bin499664170516f12fb9166818e92f069d4592a4b210cd264c6e517a35c25f0f64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9F7 | 10288 bytes |
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