PDF malware analysis — malicious · a3d6b2eb3689f9f2

MALICIOUS

PDF

42.9 KB Created: 2020-10-19 12:29:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: 93c90e5d6af4c6d183f6f3eba5db085a SHA-1: e9e35880290f2b7b28c9b21c058b64b3fa7d9cf9 SHA-256: a3d6b2eb3689f9f29599b4c2df1087d8ff54c22971733355333bdf35c4c5f29e

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF 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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small 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.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF 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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://cctraff.ru/strik?keyword=onity+trillium+lock+manual In PDF document text
- https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/951693.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/4918653.pdfIn PDF document text
- https://mojenosude.weebly.com/uploads/1/3/1/3/131382274/3c0d22f9ea77.pdfIn PDF document text
- https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/mezevoxinokimuwamibu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365547/normal_5f87327e1a2c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375083/normal_5f8cfcd102982.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368500/normal_5f881b670768d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0483/5940/7765/files/89588496235.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4548/5725/files/pronunciacion_en_ingles_de_palabras.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4456/8220/files/2020_toyota_tacoma_manual_transmission_fluid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0700/8168/files/customize_apps_screen_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/6948/4439/files/north_mason_high_school_yearbook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26923690-63dd-4140-927f-1e42999635a4/order_of_the_stick_start_of_darkness_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1e759874-25cb-429c-92c0-d262e723b25b/rakulogorofasabirafogopo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3f2f54ce-103e-4bbc-b5bb-9936288e2617/xogabupedagub.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe0ec9b8-b197-439d-abef-03d61cc90d9f/pamuk_prenses_ve_yedi_cceler_film_izle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/3841/1422/files/dr_driving_hack_apk_1.49.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0480/9103/7859/files/xanaxogedafabukejifeka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1067/9203/files/debavenixovusizafez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4649/2567/files/how_to_seduce_a_woman_via_text.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/9661/9193/files/79599415375.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005b42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B42	4724 bytes
SHA-256: `fd4005efbb04b3335cadf1bf52cf0fcd3fef52ff4d0f6646923e1d8b475c6172`
`font_01_sfnt_off00006b36.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B36	10956 bytes
SHA-256: `3c928c17e4ad032a2ed5c4c5f3a747210cbd710d687997a5de818f683015ac60`
`font_02_sfnt_off00009066.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9066	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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