Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ce25c93a24122f…

MALICIOUS

PDF

64.1 KB Created: 2020-10-28 19:16:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 6dd321e8525c154e7bfa6989e7a52a6a SHA-1: 8b556bd2119e2601c701ae34f2459582b9fdd6cd SHA-256: 02ce25c93a24122fa5246fb11dec11bf21170c08f563937ff2ee01b8c22248de
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://gettraff.ru/strik?keyword=spotted+lanternfly+is+an+active In PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/c80b73.pdfIn PDF document text
    • https://rovumixonisi.weebly.com/uploads/1/3/4/0/134012407/3c6fc2.pdfIn PDF document text
    • https://xoxajunun.weebly.com/uploads/1/3/4/3/134351876/vojukaruwudivure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383170/normal_5f8ef87c3b4e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410989/normal_5f98ec96e9be3.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/zakonajog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1871/7864/files/88070031451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8542/8384/files/42018401930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/iec_60529_filetype.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4118/4165/files/mobawunejatesij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/86979827616.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/les_9_cadrans_de_l_abdomen.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/pakopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1879/files/todixisozemesaritulipovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6424/8470/files/faneguleravotodos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3057/5787/files/lasazibezobejelurebadofu.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/adjectives_adverbs_comparative_superlative_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/lurezizekapabevikalaxezok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2301/0461/files/65425020241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3840/8345/files/vaximodolopululumobuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/35850964081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/5801/7430/files/default_android_calendar_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/us_constitution_2nd_amendment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/9132/6644/files/kanawha_county_schools_wv_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/jenibe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA579 5416 bytes
SHA-256: fbb04e5a02f43022195bc1e623ca1f437372f43f290ec5ce73293be681fac099
font_01_sfnt_off0000b804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB804 10948 bytes
SHA-256: d0a83e6ffd299ea5140a0ecbb2b68415beda895c905a9516f3ac5d4c1e78c2fb
font_02_sfnt_off0000dd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7A 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330