Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2a1fe47ad154de…

MALICIOUS

PDF

48.2 KB Created: 2020-10-27 02:02:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ecfee6ffc1dcad3cb3946f592f50d1f SHA-1: 783fbb2ae6d0ecd0e5cdd7a1c0626e3fbc42d590 SHA-256: 8e2a1fe47ad154de335bff924a1cd67466a44b024a721dbda911afd26f7a9d65
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link to a known malicious redirector, 'https://ggtraff.ru/strik?keyword=winx+club+enchantix+bloom', which is likely intended to lead the user to a malicious site. The document also functions as a link farm, containing numerous links to other PDFs hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute further content. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/strik?keyword=winx+club+enchantix+bloom
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/803413.pdf
    • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/nonelonodogiwuj.pdf
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/3391391.pdf
    • https://xumabilere.weebly.com/uploads/1/3/1/1/131163638/634de3b.pdf
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jasamejug-jenutuzudemeluf.pdf
    • https://puliwavigajog.weebly.com/uploads/1/3/4/4/134469254/8c7eac7.pdf
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/jajum.pdf
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/lawowebewubu.pdf
    • https://razezoxuwen.weebly.com/uploads/1/3/1/4/131453099/3978568.pdf
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/devuxupujikeninaferi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/mawifos.pdf
    • https://cdn.shopify.com/s/files/1/0496/6635/9460/files/jofigufitawusepovi.pdf
    • https://cdn.shopify.com/s/files/1/0480/3398/8767/files/riddle_elementary_school_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6648/files/o_papel_da_sociedade_civil.pdf
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/46197048721.pdf
    • https://cdn.shopify.com/s/files/1/0440/7413/9813/files/fdle_bat_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/rhonda_that_70s_show.pdf
    • https://cdn.shopify.com/s/files/1/0504/8526/4546/files/second_galaxy_apk_mod.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/66754873297.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8701/files/fiwonagelagijopikelimuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/7459/2668/files/gettysburg_address_context_clues_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/vezefutemiwog.pdf
    • https://s3.amazonaws.com/henghuili-files/pdf_file_online_rotate.pdf
    • https://s3.amazonaws.com/warapagefasovi/transition_metal_carbonyl_cluster_chemistry.pdf
    • https://s3.amazonaws.com/suzixegazunow/29808597281.pdf
    • https://s3.amazonaws.com/nalifij/avon_brochure_may_2019_philippines.pdf
    • https://s3.amazonaws.com/wapabefizosumi/definition_of_political_leadership.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e39.bin
2dcba235fde3302a6c0a43abc6f2b0ef20d444d28114b2a261bf6f807c7dc907		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E39 4984 bytes
font_01_sfnt_off00008f13.bin
0f0dc2c3d5c38b1cbaf7d1ee68ff80c6f3747daa29aae0a8e466d4e50d72fae2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F13 10756 bytes

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