Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92ead5fece911ba…

MALICIOUS

PDF

65.9 KB Created: 2021-02-15 23:45:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5bd15c3c26ed2c8a9e628c5892747f0b SHA-1: 5b6ba454698e158b5be265502ac8d9e2e3f11b27 SHA-256: c92ead5fece911baa765215955ecfbe0deba606b041acd9f7833adb436dc6a91
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/aws?utm_term=how+to+open+sentry+safe+with+key+and+dial PDF link annotation
    • https://selokifasafu.weebly.com/uploads/1/3/4/3/134383977/bf757c.pdfIn PDF document text
    • https://cdn.sqhk.co/ketifoseja/hfjcDRN/kibokapemenaduzoxu.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/hegiggl/zalolokosesigomemi.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxodokoju/6kjdij3/final_fantasy_dimensions_2_free_download_ios.pdfIn PDF document text
    • https://sufudoni.weebly.com/uploads/1/3/4/8/134853368/f282029894.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/phaiaZW/instagram_story_viewer.pdfIn PDF document text
    • https://cdn.sqhk.co/gemesikexo/gen34jh/filters_for_selfies.pdfIn PDF document text
    • https://tivufotevomok.weebly.com/uploads/1/3/2/6/132682035/1898243.pdfIn PDF document text
    • https://cdn.sqhk.co/kanereneb/pmqlhjn/45354080025.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/pesapogez.pdfIn PDF document text
    • http://xatabiraluxuded.rf.gd/rrb_alp_result_2018_date_answer_key.pdfIn PDF document text
    • http://lovafis.rf.gd/gba_emulator_full_version_free_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/cmc_rescue_guide_app.pdfIn PDF document text
    • http://mupeluzapuwefa.rf.gd/sononejimademareko.pdfIn PDF document text
    • http://gezibetaw.epizy.com/google_chrome_portable_2018.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 PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC538 5348 bytes
SHA-256: 3ff7f4b4fe9bc9eb472a4888ca7d39ba6240100986f3963c848a928f70f55cab
font_01_sfnt_off0000d775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD775 10368 bytes
SHA-256: 465bce8a0785ae5bd290b86b4d2acef44f062c590255fbd145e4ab7e0a982609