Malicious PDF — malware analysis report

Static analysis result for SHA-256 032be13f6ea04829…

MALICIOUS

PDF

72.7 KB Created: 2021-03-03 01:01:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6b60f7c650d9811c2d7ae6729595340f SHA-1: 9259eab08ea9e230df07445d96208b41f047fa49 SHA-256: 032be13f6ea04829e82ac777eb4f13ec443639fab6514d936db2b098761aa369
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=interview+questions+for+nurses+in+uae In PDF document text
    • https://cdn.sqhk.co/rotexopapi/GXTBVji/ice_cream_running_dog_pillow.pdfIn PDF document text
    • https://cdn.sqhk.co/batitiviz/fibIshc/amazon_prime_video_roku.pdfIn PDF document text
    • http://blockingscenery.com/robertshaw_thermostat_manual_9615prbrd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461207/normal_5fe349799f502.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378856/normal_6009bee45248f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462351/normal_5ff5a0bd7ce4e.pdfIn PDF document text
    • https://cdn.sqhk.co/gebunemif/ifgijfT/falutafunegonufu.pdfIn PDF document text
    • http://winwites.space/gexutoxi997v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416501/normal_5fe717fcc19e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454425/normal_5fdee4642d6b2.pdfIn PDF document text
    • http://zuxekagapefe.mygamesonline.org/uppababy_mesa_weight_range.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383704/normal_5fd8f5762717c.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/jijezuxilun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402938/normal_600ff570c5371.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duxepivol.myartsonline.com/cuantos_mililitros_son_300_gramos_de_azucar.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/71862460962.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/what_do_bloods_and_crips_stand_for.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/fluid_catalytic_cracking_science_and_technology.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/plus_size_formal_dresses_ireland.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/bafg_formblatt_3_ausfllen.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_off0000e0f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F2 4944 bytes
SHA-256: bd264569696428231a57ed3a43cb28c0f1732e94c6dcbdab0eae8fd9f9c14136
font_01_sfnt_off0000f1ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1EF 10516 bytes
SHA-256: db43fec3c121541240569bed10113d044922d27f4c84828ae619d24c7c02b7cb

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