Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a1deb88dbe7261…

MALICIOUS

PDF

51.3 KB Created: 2020-10-27 22:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 751b66dde25e612f48d7ec1733d822ad SHA-1: 168742b63542170d60749426c501e20f4ba492ce SHA-256: 46a1deb88dbe726137187efb5c7d5ba7a181fa62ae8ce356dfc09ce477d4eeed
154 Risk Score

Malware Insights

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

This PDF document contains a link to a redirector, which is a common tactic for distributing malware or phishing content. The document body explicitly mentions "Subway surfers hack apk for pc", indicating a lure to trick users into clicking the malicious link. The presence of numerous external PDF links suggests a link farm designed to improve SEO for malicious content.

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://ttraff.ru/123?keyword=subway+surfers+hack+apk+for+pc
    • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/walum.pdf
    • https://ruxibero.weebly.com/uploads/1/3/4/4/134403554/zubonakidomo_wolubixajawo_musuvep.pdf
    • https://vogizezadu.weebly.com/uploads/1/3/0/8/130814341/fabobipiruwis_fuzoxaseb_vesujevinigu_luseja.pdf
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/193d83d10c.pdf
    • https://www.imustread.com/2016/11/best-2nd-grade-math
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/samopakamefap/kisuwilipelapabosavimaxul.pdf
    • https://s3.amazonaws.com/jifesu/anglo_afghan_wars.pdf
    • https://s3.amazonaws.com/felasorarabipis/76282205044.pdf
    • https://uploads.strikinglycdn.com/files/58fadeb7-4c1c-4ab9-baa0-957910c76ec4/vojaxiwokosobina.pdf
    • https://uploads.strikinglycdn.com/files/4acfd1b2-f31e-4e8e-963a-8fbaaac392e8/nefewimuwewaretopone.pdf
    • https://uploads.strikinglycdn.com/files/726be732-ddc9-4477-b913-891a9ab3c8a5/what_do_i_call_my_moms_cousin.pdf
    • https://uploads.strikinglycdn.com/files/40e2684a-969f-431b-aca5-7aa1e4830d0d/krita_gradient_tool.pdf
    • https://uploads.strikinglycdn.com/files/cebcbe9a-e601-4d34-8da4-56495364ae12/noradutiteg.pdf
    • https://s3.amazonaws.com/kavitokolezub/hindu_baby_boy_names_in_hindi_download.pdf
    • https://s3.amazonaws.com/zunewidimem/58698624303.pdf
    • https://s3.amazonaws.com/nakevoja/avoir_et_tre_indicatif_prsent_exercices.pdf
    • https://s3.amazonaws.com/zirojopemup/87709079591.pdf
    • https://uploads.strikinglycdn.com/files/d0d13e49-52a7-4f22-abd1-0e37985df266/nunebitukesezuxokelegijuk.pdf
    • https://uploads.strikinglycdn.com/files/bcf2cf76-2929-4578-8c0d-020734ffc656/ayatul_kursi_audio_with_urdu_transla.pdf
    • https://uploads.strikinglycdn.com/files/a7209b1a-88c9-4019-9f2b-f122abc03a03/depewujedilegiwijugoxele.pdf
    • https://uploads.strikinglycdn.com/files/50953069-3919-4c13-8bc5-9cc66775fb78/34338704216.pdf
    • https://uploads.strikinglycdn.com/files/98702e15-9d2e-43d3-8e44-bc28345bd1be/52491253928.pdf
    • https://cdn.shopify.com/s/files/1/0463/5338/3581/files/what_channel_is_bounce_tv_on_xfinity.pdf
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/flame_test_conclusion_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/radiology_case_reports_guide_for_authors.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076e9.bin
b6e002cc05f9ec42d00ad7bc5b6e8a58e6d3beb8b9b62eb9b7835e0d7bcba573		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76E9 5220 bytes
font_01_sfnt_off000088cc.bin
9a428862aab286e6959fa0dbabed59c312dcb50810cf388e0821f5380773d0ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88CC 11796 bytes
font_02_sfnt_off0000b00c.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB00C 4324 bytes

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