Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd725e20b9f5294a…

MALICIOUS

PDF

60.7 KB Created: 2020-12-22 16:57:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 5067e2d4939c11abc0996ed97a91f1b9 SHA-1: b87e5f7eb95e34fb361f4c967eb1573605afb2d6 SHA-256: cd725e20b9f5294a8777005e0646a2e4bb1f3e5e373c55ed1ba191dd75124809
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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.
  • 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://gettraff.ru/wb?keyword=merge%20town%20crazy%20games In PDF document text
    • https://cdn-cms.f-static.net/uploads/4482619/normal_5fdb6f493a474.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501975/normal_5fbeebeeaf626.pdfIn PDF document text
    • https://duzopotubesafes.weebly.com/uploads/1/3/4/8/134890215/pemixives_vubanobesofem_nazoteluji_tolipisu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490529/normal_5fbb2f492e1ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388060/normal_5faaa850e9046.pdfIn PDF document text
    • https://wabemogulumog.weebly.com/uploads/1/3/4/3/134384503/retoxokejuwololo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378167/normal_5fd2e7c14fc0f.pdfIn PDF document text
    • https://rirulejirosajis.weebly.com/uploads/1/3/4/3/134320684/zipixikijegabuwig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369519/normal_5f94577108884.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444369/normal_5fb7bc69693f7.pdfIn PDF document text
    • https://mopuvavipobum.weebly.com/uploads/1/3/1/0/131070525/jamagisikuto-retikaselugig.pdfIn PDF document text
    • https://jazakeramexevam.weebly.com/uploads/1/3/4/6/134615015/luxidaluxuruwug.pdfIn PDF document text
    • https://keminozabigorez.weebly.com/uploads/1/3/4/8/134886120/pabunebikipibenen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5f87359f98dbd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc13c726609fd0ee793905a/t/5fc315ff7acac6192a25fed0/1606620673340/lovetusifunuko.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc672d96b97992eb58188a1/t/5fd64ba10f11661d4c2866c2/1607879586294/nabuzobopukadajisopixowo.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_off0000b1af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1AF 5336 bytes
SHA-256: e495ce43647b51e2f3ca9026133c3b22e68066874db4d4580387c13ca3287561
font_01_sfnt_off0000c3f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3F0 10224 bytes
SHA-256: aa74cd97a613929914e6a3add1fd78566e1c948e68bbe2ca0cca5b435d9c1989

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