Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c3be595fe362eab…

MALICIOUS

PDF

76.4 KB Created: 2021-03-06 06:20:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0a6187b502c5fe21b65bef5eda7da0ae SHA-1: 5dcf8fc38a875e3b1b37458070faeb398b02ff07 SHA-256: 9c3be595fe362eab1435ae521ea2c3154bf8c8ef274bf49a93516008aa479551
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://maypoin.ru/award?keyword=how+do+i+know+what+generation+of+echo+dot+i+have PDF link annotation
    • http://onatural.space/mecha_e_manga6fjem.pdfIn PDF document text
    • http://sokfresh.fun/jirejukasel061pe.pdfIn PDF document text
    • http://ketosimple.online/984057789347w1ix.pdfIn PDF document text
    • http://fortuneo.best/693412822477e340.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c00a2630-276f-421b-93f4-959f079064da/what_flower_rhymes_with_daisy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd61d905-11b1-40d7-83c5-db54e76690cf/how_to_use_singer_quantum_9960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cc56aba-6b99-4ce3-9bf3-16c045cb8809/kejumi.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/95645506742.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/wejijud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba95c84-dca3-4e75-9fae-dc4759e629aa/what_are_the_12_major_biomes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a658fc7-1e35-4b01-9476-1a5a6eacd0dd/jarefixivupatilugagetin.pdfIn PDF document text
    • https://s3.amazonaws.com/zubata/divigowagixixipef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf137467-f4f6-402a-bdfc-734e4e852b7d/97061344025.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/podija.pdfIn PDF document text
    • http://wamovesomawegun.rf.gd/72145967328.pdfIn PDF document text
    • http://weparizik.epizy.com/23050755554.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/fisomazesixugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd1ddf3-93d4-4909-b21a-bb7664f89d5f/my_nespresso_coffee_machine_leaks_water.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_off0000ee15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE15 5252 bytes
SHA-256: 416e0279aa30d389b55bf673eebe77c734fd7bb014f032513ca609c81186342f
font_01_sfnt_off00010008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10008 10508 bytes
SHA-256: 9659b963bae24705a223d49682ae01296d37e1fe7d59706ddc5743c329bc79cb