MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a lure related to an 'entrance exam answer key' and includes a prominent call-to-action phrase. A critical heuristic indicates that embedded links point to known malicious redirector infrastructure, specifically the URL https://ttraff.ru/pify?keyword=amu+11th+entrance+exam+answer+key+2018. The document also exhibits characteristics of a link farm, with numerous links to external PDFs, including one hosted on cdn.shopify.com. The presence of a malicious redirector and the link farm structure suggest a phishing or malware distribution attempt.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/pify?keyword=amu+11th+entrance+exam+answer+key+2018
- http://gigadu.jamesferris.ca/uploads/1/3/2/7/132741334/xupepiza.pdf
- http://lenusel.circmfarms.com/uploads/1/3/1/0/131070841/pinobopi.pdf
- http://files.mentalhiccups.com/uploads/1/3/2/6/132695288/244289.pdf
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/zotabiwegatafexalufow.pdf
- https://cdn.shopify.com/s/files/1/0431/6535/2097/files/67525113521.pdf
- https://cdn.shopify.com/s/files/1/0431/2078/7613/files/vejitetetozipevebigogase.pdf
- https://cdn.shopify.com/s/files/1/0436/2846/2233/files/what_is_a_thematic_statement.pdf
- https://cdn.shopify.com/s/files/1/0435/7180/6366/files/90667206025.pdf
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/21576055814.pdf
- https://cdn.shopify.com/s/files/1/0435/5584/8355/files/california_general_contractor_license_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/7695/1965/files/tibuxevujuwotirilopiniju.pdf
- https://cdn.shopify.com/s/files/1/0427/7560/9510/files/poxopajapalog.pdf
- https://cdn.shopify.com/s/files/1/0437/7313/2957/files/list_of_oil_and_gas_companies_in_kuwait.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_off000065ea.binf120ff6060e490f43e34dfde089d0dbf5d4335872ff857d0a1cb9819931e0f9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65EA | 5844 bytes |
font_01_sfnt_off000079bc.bin6ccd7c22741c4f236196387a390901f1a0d9f500d255ee7049b6e31e8ad8cb66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79BC | 10312 bytes |
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