Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80ac191fab67bed…

MALICIOUS

PDF

72.5 KB Created: 2021-03-01 11:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79f7f868133f8fb2f7bc1a62f926b783 SHA-1: 20838294be1614366787dd3ffab449377687af4d SHA-256: d80ac191fab67bed7d333bbf1f1193c2728f9dee26ee635e058995f876fda06c
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly-hosted PDF files, suggesting a link farm or SEO poisoning tactic. The presence of a URL related to 'adobe illustrator crack youtube' and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicate a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nipisod.ru/wix?keyword=adobe+illustrator+crack+youtube
    • https://sexanugujox.weebly.com/uploads/1/3/4/2/134266496/nusafunilokode_gedukatopikat.pdf
    • https://fimedezederuru.weebly.com/uploads/1/3/4/8/134884956/lomatulapuk-mipubogud.pdf
    • https://cdn-cms.f-static.net/uploads/4443357/normal_602103efc8e6a.pdf
    • https://cdn-cms.f-static.net/uploads/4366321/normal_602c94923ccf4.pdf
    • https://tugufotekaluxaz.weebly.com/uploads/1/3/4/8/134883762/2144480.pdf
    • https://cdn.sqhk.co/viwiratoposu/fgeVhrc/programme_ludo_educatif.pdf
    • https://cdn-cms.f-static.net/uploads/4503617/normal_60216b78196e4.pdf
    • https://cdn.sqhk.co/bafebolabefo/RQ7HSAx/malaysia_real_name_basketball_wives.pdf
    • https://lonegaru.weebly.com/uploads/1/3/0/9/130969637/metepulise.pdf
    • https://cdn.sqhk.co/jarogofef/hge29oO/green_pantone_color_of_the_year.pdf
    • https://cdn.sqhk.co/rapovixovuti/SijlgeG/rebel_circus_funny_quotes.pdf
    • https://static.s123-cdn-static.com/uploads/4443602/normal_5fe461f4bf05c.pdf
    • https://cdn.sqhk.co/xororofomed/3iijdXl/12475059306.pdf
    • https://static.s123-cdn-static.com/uploads/4369158/normal_5fec9793b7e50.pdf
    • https://sixalusizefew.weebly.com/uploads/1/3/1/3/131378898/0715af.pdf
    • https://cdn.sqhk.co/gipagigo/c985cih/the_hangover_2_soundtrack.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wuzalugiseto/amiga_forever_7_plus_edition.pdf
    • https://s3.amazonaws.com/tawosutosuxi/12059564828.pdf
    • https://s3.amazonaws.com/dipafuxe/xixopegizilebuxe.pdf
    • https://s3.amazonaws.com/jemisajoda/80452101085.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_off0000d493.bin
843cc09da90ef8babed18e6c46c0b057027eea4d9b95ff7f5f930deaa97fbe39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD493 5228 bytes
font_01_sfnt_off0000e66a.bin
3eadf3ff1ae85f7a2dd8be852d633ca148c1d24200a16cbd4325889adc5789c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE66A 2140 bytes
font_02_sfnt_off0000f044.bin
c16e5aaa221f50425dcaa2dcd710739837a5a9238dc846474b2099d019cb9056		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF044 10100 bytes

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