Malicious PDF — malware analysis report

Static analysis result for SHA-256 54cca84724379315…

MALICIOUS

PDF

69.4 KB Created: 2021-03-02 22:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 866ff0720f957e5ca88469664c736a1b SHA-1: 47edf095f2c90b8f77491aa848311672bdb43596 SHA-256: 54cca847243793155beb6af21bbedaf878c4d8106e48c33c36aef05090f12e5a
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://vilenefex.ru/award?keyword=weber+genesis+grill+parts+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479906/normal_602c4c061bbec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425211/normal_5fe849e03d491.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466146/normal_6030207c46294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369647/normal_6037fec87bc5a.pdfIn PDF document text
    • http://zabemaladameg.medianewsonline.com/what_is_cultural_safety_in_the_workplace.pdfIn PDF document text
    • http://sozaxasofurem.22web.org/benivudajozoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469103/normal_600efae186390.pdfIn PDF document text
    • http://fivabigenarewo.22web.org/in_my_room_song.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403543/normal_5fdd43a54803e.pdfIn PDF document text
    • https://gipazekafasulal.weebly.com/uploads/1/3/4/6/134600210/debodakatojike-fetolesor-sejufasagefi-fasejurewoz.pdfIn PDF document text
    • https://fesogewil.weebly.com/uploads/1/3/6/0/136097302/luvitexitusuxif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467005/normal_601c972181873.pdfIn PDF document text
    • https://kaxamutibe.weebly.com/uploads/1/3/5/3/135348628/petinerobaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vudamup.rf.gd/can_i_use_regular_k_cups_in_my_keurig_vue.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/limopojokagazenolipulidin.pdfIn PDF document text
    • http://linanimeb.rf.gd/42862490421.pdfIn PDF document text
    • http://jegowijuvu.epizy.com/65610774712.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_off0000d279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD279 5292 bytes
SHA-256: 8df77db5a00f0559190d4f0e20007926c934a73021bdb31d99a41504130e7bd8
font_01_sfnt_off0000e471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE471 10548 bytes
SHA-256: a25719ef4cd6b70492717d046ea8cd8d43401aa23e669b0c7a0a914addc76039

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