Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d8271585f2f54e6…

MALICIOUS

PDF

69.4 KB Created: 2021-03-09 04:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 159bba3fc5693291b073bc536b0dad86 SHA-1: 75c21cbb5f46a8cb6049ffafea5a4600441d8aab SHA-256: 3d8271585f2f54e6ea4ce759100906b2ea843689f56437b95bd2d087d2a9bdbc
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://botokaw.ru/wix?keyword=hotel+montana+haiti+tripadvisor PDF link annotation
    • https://mabajiluvepe.weebly.com/uploads/1/3/1/4/131409333/1977662.pdfIn PDF document text
    • https://pulapiselipatux.weebly.com/uploads/1/3/1/3/131378970/a961866.pdfIn PDF document text
    • http://gapilojazixo.getenjoyment.net/samsung_rf26hfendsr_freezer_not_working.pdfIn PDF document text
    • https://sepuzudagek.weebly.com/uploads/1/3/5/3/135329554/jajegupetakisi.pdfIn PDF document text
    • https://veriketosamu.weebly.com/uploads/1/3/4/6/134675732/busonome_dusuritu_luwoximemakap_lotusonojazar.pdfIn PDF document text
    • http://liwurivosopap.medianewsonline.com/pafafosewugotatinibej.pdfIn PDF document text
    • https://petugaxuw.weebly.com/uploads/1/3/5/3/135397026/8982151.pdfIn PDF document text
    • https://zagumugapepari.weebly.com/uploads/1/3/1/6/131636872/wanapafafalejisikon.pdfIn PDF document text
    • http://peuer.xyz/megunumimmt59.pdfIn PDF document text
    • https://dexajuvado.weebly.com/uploads/1/3/4/4/134470202/ffc7a771ccf99d4.pdfIn PDF document text
    • https://tevupiju.weebly.com/uploads/1/3/4/8/134865653/9d26e7f7a0.pdfIn PDF document text
    • http://hairsprof.ru/pottermore_phoenix_patronus_answers5dpkl.pdfIn PDF document text
    • https://piligerababuge.weebly.com/uploads/1/3/5/3/135324290/7b4ea00332.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/28024fa3-eb9c-4743-bb06-dcce5adb6a3e/mental_toughness_group_activities.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/51636304277.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/kepinigijuz.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/agastya_hd_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/bloons_td_6_apopalypse_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/brewer_and_treyens_research_method.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef3d0d26-9338-47f2-a2d6-30079795a79e/pals_plus_wayne_nj.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_off0000d4db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DB 5220 bytes
SHA-256: a0ac329ca96f1b62a467b717bcc75ef69bc5773e72709a8a143a72ffd4b97cb0
font_01_sfnt_off0000e66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66D 10020 bytes
SHA-256: 9164286ee07e420c960b8b6da8b4c916c3977e24e4c086e984369cb7d1752029