Malicious PDF — malware analysis report

Static analysis result for SHA-256 892d0dbac5d6bd1a…

MALICIOUS

PDF

64.1 KB Created: 2021-01-30 12:47:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3d0301938e587ed5ace6bad71e79c1eb SHA-1: c2fc1fe15d42b8d5aefd161b6a2fae8ff3db847d SHA-256: 892d0dbac5d6bd1ad0e61305f390cb5a620bc7efa020cea808c1988f3e44bb25
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/aws?utm_term=cara+buat+website+gratis+di+android PDF link annotation
    • http://uablog.website/nfl_fantasy_football_ppr_draft_strategyc4cwl.pdfIn PDF document text
    • http://smotrikino.fun/zabiriegkgk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490720/normal_600415f6ecb10.pdfIn PDF document text
    • https://migijulomav.weebly.com/uploads/1/3/5/3/135394851/lowik.pdfIn PDF document text
    • http://linza.media/granny_earn_or_die_2_unblockedqh5vw.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/gjicxjh/bounce_back_full_movie_download.pdfIn PDF document text
    • https://cdn.sqhk.co/joxipadij/mujfgfs/smoke_neutralizer_spray.pdfIn PDF document text
    • https://tazuwadafif.weebly.com/uploads/1/3/4/8/134857375/66dd878.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/heiaohd/22568121725.pdfIn PDF document text
    • http://bella24.xyz/tamil_movie_ponnumanitglk9.pdfIn PDF document text
    • http://xazufajemexeb.22web.org/stock_valuation_report_format.pdfIn PDF document text
    • https://nifirasevaxo.weebly.com/uploads/1/3/4/7/134756957/bukugiwotor-fitedo-puwafo-wonowudamog.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/n4hgFrL/the_legacy_of_the_bones_review.pdfIn PDF document text
    • https://cdn.sqhk.co/fetebutujo/xgjif6u/puzzle_bobble_2_pc.pdfIn PDF document text
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/7854126.pdfIn PDF document text
    • http://kurekarer.22web.org/change_file_to_word_online_free.pdfIn PDF document text
    • http://fujubipe.22web.org/vesisaxolejikiresawi.pdfIn PDF document text
    • https://nagiliju.weebly.com/uploads/1/3/1/4/131412426/6848168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2E0 5100 bytes
SHA-256: 572ecf15fb0a43109d4184422923ff888b0a294ea8c7a3c1dd4028395a34eb5c
font_01_sfnt_off0000d451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD451 9108 bytes
SHA-256: 1a4128626e93e3aca17140300b2e4bf2f2d9ba57809081f7029808955f0af6f4

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