Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d68efa6194a03f0…

MALICIOUS

PDF

73.3 KB Created: 2021-03-27 17:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8d9b8bafa14b849e695cc0bd3a904bf5 SHA-1: 75c5ea777bc9f2d0ce1f02c6273049cadfdfa376 SHA-256: 4d68efa6194a03f09ac6dd375623dee372252275bb1128be0a556867c5859138
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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://jacksth.ru/123?utm_term=bridal+shower+emoji+pictionary+answer+key PDF link annotation
    • http://tidirakozodawon.getenjoyment.net/what_bachelor_degree_for_interior_design.pdfIn PDF document text
    • http://xubanapirobula.mypressonline.com/raxegezudolo.pdfIn PDF document text
    • http://kelimap.mywebcommunity.org/nationalism_in_india_by_tagore_summary.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410217/normal_6002a63b69e96.pdfIn PDF document text
    • http://didibemez.scienceontheweb.net/93100710569.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452835/normal_5fd19b2443c36.pdfIn PDF document text
    • http://misujupino.getenjoyment.net/adosphere_2_guide_pedagogique.pdfIn PDF document text
    • http://tuvivukaroj.mygamesonline.org/xopijomovutugapepu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379969/normal_602d03267314c.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/infinix_note_7_price_in_nigeria_today.pdfIn PDF document text
    • http://budokudepa.scienceontheweb.net/94109749919.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/loxopudizus/mulutidikunisozonidonamob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27477ce8-19f8-4772-a37d-f06423fd4389/successful_coaching_4th_edition_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/hungry_caterpillar_birthday_invite_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4100179d-3eed-4a9b-b164-652f83bd5ca5/how_to_write_a_short_proposal_for_a_research_paper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba061bd6-5f37-4446-a2d6-47668fe40f53/29671632336.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/acronis_true_image_explorer.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/49192868631.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/corsair_cx750_cables.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/kobew.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/free_tv_guide_brisbane.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/11519596103.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AD 5696 bytes
SHA-256: 3b1beb5960025c2945c051e0d0533bf150f58f8d3a49d6d2882edb54aed1d25c
font_01_sfnt_off0000f4fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FB 10100 bytes
SHA-256: 5beb5587f63f400a6eb1c6f32c4a1f5a566318238b725b6e0726d431abc281ae

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