MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One prominent link redirects to a known malicious infrastructure at 'ttraff.ru'. The document body, while containing garbled text, also includes the same worksheet title and the initial malicious URL, reinforcing the lure. The primary attack pattern involves directing users to potentially harmful websites through a link farm disguised as educational content.
Heuristics 3
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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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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=crash%20course%20biology%20water%20liquid%20awesome%20worksheet%20answers
- http://files.coachinginyourcloset.com/uploads/1/3/0/7/130776370/cc603903632.pdf
- http://files.goodstuffprimaryresources.com/uploads/1/3/2/6/132681204/lamumolop.pdf
- http://files.addaihealthedu.net/uploads/1/3/1/3/131380618/2087346.pdf
- http://files.wlcbands.com/uploads/1/3/1/6/131607712/2769e0d94.pdf
- http://files.jessicadenham.com/uploads/1/3/2/7/132712005/molavavip.pdf
- http://files.cailenfu.com/uploads/1/3/1/4/131437444/rutez_wubusaxofab_kajali_zuwogor.pdf
- http://files.twoforestplaza-leasing.com/uploads/1/3/1/3/131378921/2856213.pdf
- http://files.mastercreatorsadventureretreat.com/uploads/1/3/1/4/131437091/bizitesukoratinov.pdf
- http://files.nessasgoodiesshop.com/uploads/1/3/1/6/131606280/gizemazilowujonawit.pdf
- http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.pdf
- https://guzebamukubu.files.wordpress.com/2020/06/kukafoxevekilipeloxa.pdf
- https://gunurineso.files.wordpress.com/2020/06/vetinefupibosivezuxob.pdf
- https://gapekapanad.files.wordpress.com/2020/06/61686672361.pdf
- https://vezumore.files.wordpress.com/2020/07/28929223944.pdf
- https://sivutis.files.wordpress.com/2020/06/soxolabanigab.pdf
- https://duwadunox.files.wordpress.com/2020/06/81556021637.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43561311815.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.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_off00007c0b.bin0182a5759367d32cc0dd8c051d55ef262afd9a65b101a0b190d6cd9f82289f73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C0B | 5780 bytes |
font_01_sfnt_off00008f99.bin388c32ca9906552590088b3eee442d300213213c3ff6a8d2a9eb53e82e34455f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F99 | 9996 bytes |
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