Malicious PDF — malware analysis report

Static analysis result for SHA-256 d83352e12c456db8…

MALICIOUS

PDF

69.3 KB Created: 2021-03-01 19:39:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ab63fb54b4961e26de0ed354a648b1fe SHA-1: cfb51acd8e8cca063210f517adf29d66acf944ed SHA-256: d83352e12c456db871bc01e804e245b316ea91910c26051a294c95c0e047c61b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=dc+tour+guide+jobs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454040/normal_5fea2949c6575.pdfIn PDF document text
    • https://cdn.sqhk.co/migiwepi/DJhfggp/dadejotulagifekato.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/4144449.pdfIn PDF document text
    • http://fuckfrsky.com/napoleon_hill_think_and_grow_rich_quotesfabtt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450347/normal_601bfde18186b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499319/normal_6018f8f7a68eb.pdfIn PDF document text
    • https://vavixama.weebly.com/uploads/1/3/4/4/134471840/4070607.pdfIn PDF document text
    • http://kuvenumine.mygamesonline.org/55461045715.pdfIn PDF document text
    • http://coolvdomaion.online/60296423771wfk7n.pdfIn PDF document text
    • https://midezotadodagof.weebly.com/uploads/1/3/5/3/135326840/7bb147d37262106.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/hvifahi/clans_of_dragons_mod_apk_download_nulls_clash.pdfIn PDF document text
    • http://nigasheff.xyz/parirabofakenodexonotuduc538b.pdfIn PDF document text
    • https://tobevasisutigi.weebly.com/uploads/1/3/0/8/130814636/mevixagimofi.pdfIn PDF document text
    • http://lumacy.site/revue_technique_berlingo_2.0_hdipkmcj.pdfIn PDF document text
    • https://cdn.sqhk.co/desixurate/iihhTLC/bandpass_box_for_2_10s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490269/normal_5ffe7eec5da7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://japinoxizidunub.myartsonline.com/landform_project_ideas_for_2nd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/manualidades_de_botellas_paso_a_paso.pdfIn PDF document text
    • https://s3.amazonaws.com/sejakopa/android_tv_box_terbaik_dan_murah.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/cdc_flu_vis_sheet_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/vuxevukegogavoteme.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/branches_of_mechanical_engineering.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_off0000d424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD424 5080 bytes
SHA-256: 10caf0b27289c1482e90b8d3d06d3ad99b5d61a963c501aec83e3cd15d21404f
font_01_sfnt_off0000e57c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57C 10164 bytes
SHA-256: 28a355b5116dc47a4748b4bd93fae5f90171b3bb13decdf3f81ddd365a524a94

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