Malicious PDF — malware analysis report

Static analysis result for SHA-256 565060b97d32cf82…

MALICIOUS

PDF

57.0 KB Created: 2020-10-26 01:24:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: f8c18bd1886035175dea4ef498f94282 SHA-1: e3ad72333113be31bae7eddedbdcd762e2db9482 SHA-256: 565060b97d32cf8215d013bcde35f99e575156ba91dd3d40d8de13643f5605ba
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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.
  • 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://ttraff.link/123?keyword=tribute+to+a+dead+mother+samples+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379732/normal_5f8d60ea4c96a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f8722b74022f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f86ff92cf0e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379476/normal_5f8f32081907b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368985/normal_5f895343b0b79.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f5d445.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/fodumakudelax.pdfIn PDF document text
    • https://wipomozexabezi.weebly.com/uploads/1/3/0/7/130776841/2657230.pdfIn PDF document text
    • https://zekigoduse.weebly.com/uploads/1/3/4/3/134336209/53239.pdfIn PDF document text
    • https://zakikewamipuvew.weebly.com/uploads/1/3/4/2/134234925/tufimunalifago.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a0a2.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a0a2.bin)
    • https://s3.amazonaws.com/sezebepit/obligationenrecht_englisch.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/vonojulimo.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/bimutupato.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/ruremijofuxugejoronigona.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/human_anatomy_circulatory_system.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/calderas_industriales_funcionamiento.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/29692760326.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/adverbs_and_expressions_of_frequency_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/deketeso.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/fiwunomepuga.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/43741657005.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/lockout_tagout_procedure_template.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/rutusogikikudipexub.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/65235210464.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 extracted file (font_00_sfnt_off0000a0a2.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a0a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A2 5372 bytes
SHA-256: f8ae185905f185c16681b05d903a92b15a3543f3e51b9b7f269e7eaa760375d9
font_01_sfnt_off0000b2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2B8 10236 bytes
SHA-256: e634f311a138d0e9bc71c25da678f47947e4994aa70278f7f48eea68a986a87d