Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d33973d3026a362…

MALICIOUS

PDF

88.0 KB Created: 2021-03-01 05:41:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 67b527d4c00f71bc398d0d9553a1d18e SHA-1: ffaea83a981beb221b86fdfbce682d588c9ed907 SHA-256: 0d33973d3026a362c56ebb9bd78409765eff4b95f307f87bd54d227eebf6331b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ponafet.ru/aws?utm_term=what+does+loan+term+360+mean PDF link annotation
    • https://cdn.sqhk.co/lazimafuxuxi/ijj0Gje/87284191055.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478146/normal_5fca84cc2de90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422168/normal_60054b94a5dcc.pdfIn PDF document text
    • http://bewugexujiz.iblogger.org/71001791265.pdfIn PDF document text
    • https://baputopozim.weebly.com/uploads/1/3/5/3/135336161/bujaredofijar_gajutiwemodulo_zowipijeriporum_lerasitanumebir.pdfIn PDF document text
    • https://vuvuzuvikedatun.weebly.com/uploads/1/3/4/5/134529562/be0490601f2d58.pdfIn PDF document text
    • https://cdn.sqhk.co/luzigagoguna/cghighd/37535543430.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530070/normal_5fe48c8944e42.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/9ZDibjb/hatteker_beard_trimmer_target.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/hhgqHEP/zilusagomawubomaxazewi.pdfIn PDF document text
    • https://dimutaribosisup.weebly.com/uploads/1/3/4/4/134444719/8124580.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412387/normal_60357d53acd53.pdfIn PDF document text
    • http://spencermcman.us/kefawulire9r4jb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://padijajuvon.rf.gd/how_to_read_a_poem_and_fall_in_love_with_poetry_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/nasitevu/cambridge_face2face_placement_test_answers.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_off00011b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B49 5540 bytes
SHA-256: 0608df58cbda86355d909f5e75f5d2b4db6a9635ed76d607900483990eac928d
font_01_sfnt_off00012df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DF3 10956 bytes
SHA-256: 6e64e4bc6939e28ef614d5c4ff3eaa63f279655f0a644038313cd1797a54d8e2

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