Malicious PDF — malware analysis report

Static analysis result for SHA-256 732075bbdab382f7…

MALICIOUS

PDF

74.1 KB Created: 2021-02-18 05:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4933f370a59673f6732f68239acba412 SHA-1: f2fa5457fe28e14317f9142d0739b319c7503f81 SHA-256: 732075bbdab382f7aed254da3b90a9b6d5ac9c823291c985816a67131a07ce5d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wix?keyword=self+employment+letter+for+mortgage PDF link annotation
    • http://hargotel.xyz/31831852148kncss.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450641/normal_601d7b8773f44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385852/normal_600c89d1249a0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406514/normal_6004f365debc2.pdfIn PDF document text
    • https://cdn.sqhk.co/zekoparan/hjibuFD/basugovaxoxovimifazemejiz.pdfIn PDF document text
    • https://cdn.sqhk.co/regavebike/jjiipje/xbox_one_gaming_headset_microsoft.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409258/normal_5fee4f618b268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_601d9afa601cb.pdfIn PDF document text
    • https://cdn.sqhk.co/sowojusawepu/cjfsgiL/54041861585.pdfIn PDF document text
    • https://cdn.sqhk.co/livatunozasu/gfbRthe/advertising_marketing_communications_and_public_relations.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455660/normal_5fd8b64c68260.pdfIn PDF document text
    • http://remont-kholodilnikov.website/xesusexisod29bx.pdfIn PDF document text
    • https://cdn.sqhk.co/nesorosuxim/eh6ifif/caricare_stickers_su_telegram.pdfIn PDF document text
    • http://luxshop21.site/fobusizajalabozobadup69i3.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/fgibvid/34276494543.pdfIn PDF document text
    • https://cdn.sqhk.co/sesijisova/b1AcgfL/hierro_fundido_in_english.pdfIn PDF document text
    • http://titanof-filtr.ru/parents_anniversary_speechekjlj.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/1ggiijf/pabudek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61E 5248 bytes
SHA-256: 1d380b0c415220a842a5c9cf3b3722d17acbb12f9cf05d20c7b7f11f03c146cd
font_01_sfnt_off0000f7ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7ED 10428 bytes
SHA-256: 4100faf3ae2831b21aa342c1c6f651e3e93fdebca41f0dce5c1cea844f5e48fd