Malicious PDF — malware analysis report

Static analysis result for SHA-256 7005b84c442a44e5…

MALICIOUS

PDF

69.5 KB Created: 2020-12-28 21:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 345e4ee804295a2b4ed4416f3178ea57 SHA-1: 44629649dda86a8f1fcbfdc8b6fc7598c40c6292 SHA-256: 7005b84c442a44e51e5b1f6a0f5e546e89e4550061769cd9d68485ddc8194458
196 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.
  • 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://trafficel.ru/aws?utm_term=call+of+duty+garena+emulator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405194/normal_5fdb3704262bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498986/normal_5fbe7633770b2.pdfIn PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/duwizom.pdfIn PDF document text
    • https://nobenegutebofem.weebly.com/uploads/1/3/4/6/134615432/7005312.pdfIn PDF document text
    • https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/momomuxurogetukok.pdfIn PDF document text
    • https://cdn.sqhk.co/gatutojuse/RP7lCar/guess_the_flag_sporcle.pdfIn PDF document text
    • https://cdn.sqhk.co/woravejafeto/EPhihaO/among_us_how_to_play_on_mac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366357/normal_5f874cf3794f3.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/lukepepe/xuvipimenefigu.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/18247321510.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/31925196084.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/dell_latitude_7490_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/b._e._full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/65752431120.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/52072696476.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_off0000d414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD414 5056 bytes
SHA-256: 744150a21b388331389792f333ede022d6007e876f17dad0c96e4582558c91fb
font_01_sfnt_off0000e53a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE53A 10664 bytes
SHA-256: b1a25fba9086045769e2b74a11c9b15b8cd5b2919d4d5c18dc9ec4bfc099b62b