MALICIOUS
64
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded URIs, with one pointing to 'renimba.info', which is flagged as a suspicious external URI. The ML classifier also identified the PDF as malicious. The document body is heavily obfuscated and unreadable, but the presence of external links suggests an attempt to redirect the user to a potentially malicious site for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9117
Heuristics 3
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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%B7%D0%B0%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D0%B8+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+2017+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0+%D0%B1%D0%B0%D0%B7%D0%B0+31+%D0%BC%D0%B0%D1%8F PDF link annotation
- http://matematikaprosta.cc/7krZfcIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907935_wudargdzporusskomuiazykunikolina1011nemi.pdfIn PDF document text
- https://hoebelema1977.files.wordpress.com/2018/04/tisebolatiz-tiuner-tcl79107d5b3-skhema-laxedisovowakin.pdfIn PDF document text
- https://taslowido1984.files.wordpress.com/2018/04/kufowaduxopor-skhemy-usilitelei-nizkoi-chastoty-na-la4625-tewusiju.pdfIn PDF document text
- https://thibarpobe1983.files.wordpress.com/2018/04/zomazowolog-odnoklassniki-galina-salaru-foto-s-bachoi-lejem.pdfIn PDF document text
- https://cirrgeekbgosen1984.files.wordpress.com/2018/04/zelebafewi-videouroki-dlia-ege-po-biologii-skachat-gitulurov.pdfIn PDF document text
- https://img1.liveinternet.ru/images/attach/d/0//5907/5907152_fogesewraspisanieege2071rujok.pdfIn PDF document text
- https://inpetfipen1982.files.wordpress.com/2018/04/manuwiv-klubnye-treki-2016-skachat-besplatno-samye-fuzilukutalafu.pdfIn PDF document text
- https://img0.liveinternet.ru/images/attach/d/0//5906/5906847_bikifipiblankegeporusskomuiazyku2017raspechatatfipizawo.pdfIn PDF document text
- https://hyapuwatchre1980.files.wordpress.com/2018/04/xofiwub-11-zadanie-ege-matematika-profil-kak-reshat-kilupafil.pdfIn PDF document text
- https://img0.liveinternet.ru/images/attach/d/0//5906/5906534_genafreshebnikpomatematike6klassvilenkinzelenyiuchebnikbapagu.pdfIn PDF document text
- https://img0.liveinternet.ru/images/attach/d/0//5906/5906853_divugdzzadachipokhimiikhomchenkowubof.pdfIn PDF document text
- https://sappbankpharluft1977.files.wordpress.com/2018/04/romugogavad-yandex-disk-webdav-windows-10-banapef.pdfIn PDF document text
- https://cirrgeekbgosen1984.files.wordpress.com/2018/04/kosok-gdz-5-klass-glazova-2013-pugimisagiv.pdfIn PDF document text
- https://fettimicut1978.files.wordpress.com/2018/04/jigupim-kak-zapolnit-shtatnoe-raspisanie-obrazets-2016-dlia-ooo-jedij.pdfIn PDF document text
- https://prupaqrestio1977.files.wordpress.com/2018/04/somegize-kak-vylozhit-foto-v-odnoklassniki-s-rabochego-stola-miput.pdfIn PDF document text
- https://vk.cc/7krYSbIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_002_off0000a4a5.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xA4A5 | 1485561 bytes |
SHA-256: 1718db8b7c6a44712dc1b3acee434281abf7527ebf6ea299260c2277eb5af585 |
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font_00_sfnt_off00029fff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x29FFF | 28968 bytes |
SHA-256: d056415c7e9df6140f12fa036d1115d7d39dba096635b4358a36ad9582ffb51d |
|||
font_01_sfnt_off0002e219.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2E219 | 15760 bytes |
SHA-256: fc2c586c5ac8a40b1975f6768d2e4eaba9138b40370324351935a08071bc9d71 |
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