MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded URI pointing to a suspicious domain, which was flagged by heuristics. The ML classifier also indicated a high probability of maliciousness. While no scripts were directly extracted, the presence of the external URI suggests an attempt to redirect the user to a potentially malicious site, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.7668
Heuristics 3
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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External URI info PDF_URIPDF contains an external URL action
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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 http://renimba.info/wp1?keyword=%D0%B3%D0%B4%D0%B7+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+6+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BE%D1%82+%D0%BF%D1%83%D1%82%D0%B8%D0%BD%D0%B0+%D1%88%D0%BC%D0%B5%D0%BB%D0%B5%D0%B2 PDF link annotation
- https://hyapuwatchre1980.files.wordpress.com/2018/04/zixalerifa-reshebnik-po-russkomu-iazyku-8-klass-lvova-lvov-2010-juvanisofolo.pdfIn PDF document text
- https://thibarpobe1983.files.wordpress.com/2018/04/bugisodefunitol-blank-zaiavleniia-v-gai-na-postanovku-na-uchet-skachat-wajoferodot.pdfIn PDF document text
- https://inernutbang1982.files.wordpress.com/2018/04/fawuwulewejono-anti-anonim-fm-skachat-jijazilu.pdfIn PDF document text
- https://img0.liveinternet.ru/images/attach/d/0//5906/5906706_toggdzalgebra7klassngmindiuk2009godbederob.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907406_murrusskiazreshebnik11klasszuf.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907906_dumewagdzmatematika1klass2chastdorofeevmirakovafulebid.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907924_muzokilgdzpomatematike6klassdorofeevfgos2016godkusigig.pdfIn PDF document text
- https://voypresappar1973.files.wordpress.com/2018/04/pemimub-ati2dvag-sinii-ekran-pri-vykliuchenii-windows-7-fenefuwigibo.pdfIn PDF document text
- https://presacbrigwic1980.files.wordpress.com/2018/04/bigivozomuf-ruletiki-iz-kabachkov-s-raznymi-nachinkami-retsepty-s-foto-raspechatat-pibofet.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907278_fijoreshebnikpomatematike4klassmorovolkova1chastotvetyvupo.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907222_xovonowsaitfipiotkrytyibankzadaniioge9klassmatematikaniwa.pdfIn PDF document text
- https://img0.liveinternet.ru/images/attach/d/0//5906/5906174_gijaangliiskii7klasskuzovlevuchebnikgdzgir.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907826_begitulgeneratorzadaniiegepomatematike2017bazovyiurovensapek.pdfIn PDF document text
- https://rimervikab1977.files.wordpress.com/2018/04/tukupude-poniatie-i-soderzhanie-dogovora-dareniia-kursovaia-rabota-nivos.pdfIn PDF document text
- https://fettimicut1978.files.wordpress.com/2018/04/vepilutagidi-syrniki-iz-500-gr-tvoroga-retsept-s-foto-poshagovo-na-skovorode-momuliketowekif.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off0002b2f9.bin)
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_002_off0000a4a1.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xA4A1 | 1485561 bytes |
SHA-256: 1718db8b7c6a44712dc1b3acee434281abf7527ebf6ea299260c2277eb5af585 |
|||
font_00_sfnt_off0002b2f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2B2F9 | 28480 bytes |
SHA-256: 0b6c5a12d608767eee1cc78092cc29088e8e081e1e7f013a891af4da52caf4ef |
|||
font_01_sfnt_off0002f388.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2F388 | 15864 bytes |
SHA-256: a0f35f407a639a56bc340b90d804f73521675543307ff6286d61415e28e1259e |
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