Malicious PDF — malware analysis report

Static analysis result for SHA-256 3883c2473ace3ea6…

MALICIOUS

PDF

35.0 KB Created: 2020-10-28 17:15:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: ea57167b8d62e03688a0f1e7999dca7a SHA-1: c312d44f8b8b628438cd6af8abfb36691a840ab0 SHA-256: 3883c2473ace3ea67cd7f9cff0d9214d484b0044eda467ca66d6ae7efc8b8962
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ttraff.link/pify?keyword=flower+blooming+gif+transparent In PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/03ce3b05c7c9b9.pdfIn PDF document text
    • https://zekasujiminog.weebly.com/uploads/1/3/4/3/134366003/pilatadaraxuxekuj.pdfIn PDF document text
    • https://sifizebutu.weebly.com/uploads/1/3/0/8/130814914/b1ee2004196.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3355978.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/2974814.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/ce0cb2b.pdfIn PDF document text
    • https://lobakazuperowe.weebly.com/uploads/1/3/4/3/134352895/gidigavenatu_nuxoxixesa_poxoxokowe_pexuxuwarodovu.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004bca.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004bca.bin)
    • https://s3.amazonaws.com/jamokaroxoj/baixar_aplicativo_para_androide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7f6161b-d81f-4255-bbf6-6f95a76d1c04/50773560444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6152e6e-b12a-45fa-a2bb-f3c49cb7448e/clash_of_clans_hilesi_rootsuz_apk_indir.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/38747392099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a83a0f3e-17ec-4921-8518-8f43b7959359/49478311175.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e1ca29a-bfe1-497e-b344-7c89c57bbc19/18620724738.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/kilidutegelejajavugofo.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/fuzonisofuruluwobos.pdfIn PDF document text
    • https://s3.amazonaws.com/jevuxozazebazug/tearaway_unfolded_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f42b2cc8-c946-4214-bfd9-1e7f81590baa/resuneturukuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/bharat_ane_nenu_song_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8958a7c-8192-4b87-925d-b1fe00687208/50702166061.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb1eff87-ba57-4687-a9d3-3ecd7f3580a1/saweda.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_off00004bca.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCA 5408 bytes
SHA-256: cfcde0d0320b5b5dbc31d2eb2319f4773b7238379d1fd288e8b646809d7f2d91
font_01_sfnt_off00005e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E30 9636 bytes
SHA-256: 34d6801fa8ee5be03aca9b3fbc487a065cea55ee7df17f9c402aac0f71eac5a5

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