Malicious PDF — malware analysis report

Static analysis result for SHA-256 e885fa9e36a71697…

MALICIOUS

PDF

48.6 KB Created: 2020-10-27 23:23:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 414d0dc2a91fc2c5c81b1b0528326e83 SHA-1: 0f9395e736a46bb63a5dd303639dac5740734794 SHA-256: e885fa9e36a71697478c09f6f114f4bbc67e64731eaa77386beb07543f28e1f7
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://ttraff.me/123?keyword=sony+xplod+52wx4+user+manual In PDF document text
    • https://luleloneluso.weebly.com/uploads/1/3/4/4/134450102/4d15732b6d.pdfIn PDF document text
    • https://wiwanozamo.weebly.com/uploads/1/3/4/3/134306351/4876893.pdfIn PDF document text
    • https://jexixixusa.weebly.com/uploads/1/3/4/3/134336138/3987438.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/midaf_vogawipi.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/4802602.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/zufizutizofonubibo.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/bujuloza-livagokonafu.pdfIn PDF document text
    • https://senobatupubem.weebly.com/uploads/1/3/1/4/131437889/larodajojurufup.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/729557764db07a.pdfIn PDF document text
    • https://fobewesepujub.weebly.com/uploads/1/3/2/3/132303403/bejurekotosuliruxeno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393762/normal_5f905dbab0ca6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369646/normal_5f94c0878678f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379035/normal_5f91abd490aea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376372/normal_5f8b06d3d8854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373782/normal_5f8924020d609.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000714e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000714e.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a6e7.bin)
    • https://s3.amazonaws.com/novipaliwid/lewibadezal.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/aspiration_in_english_phonology.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/5258541829.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/dudepavalaf.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/jesunugiwuzugojopubifan.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/difference_between_synchronous_and_asynchronous_motor.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/bexovefefufipaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2740/6232/files/emla_creme_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8526/1717/files/36467657131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/manuale_di_kinesiologia_applicata.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 extracted file (font_00_sfnt_off0000714e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000714e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714E 5568 bytes
SHA-256: 9534caa9b00f5bc71cb99c0c590436fd4813620ab4c432bb8c96b6309562bca9
font_01_sfnt_off0000843c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x843C 10132 bytes
SHA-256: 0180b34b82c4018e9953cf0722ba7a2d38c83e30ee1071eac88aecfb81bd57d0
font_02_sfnt_off0000a6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3