Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f02b685c6132b36…

MALICIOUS

PDF

59.6 KB Created: 2020-10-27 11:09:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 036f4cd2e53ff3f6e6ed1a16143845fc SHA-1: df32c0fb9dc20cae41524f4e8b1d2288cffb4ce6 SHA-256: 7f02b685c6132b36340f402c38af3c4040821fe2673b34c62cc9ccb91147d44a
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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 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.
  • 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://cctraff.ru/123?keyword=harbor+freight+airbrush+gun In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/837046.pdfIn PDF document text
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/8273359.pdfIn PDF document text
    • https://sofuwikomu.weebly.com/uploads/1/3/4/3/134308783/rozovep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384296/normal_5f8d455fae424.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f8840fc18c22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384821/normal_5f92625ca3741.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375889/normal_5f952ed79da8c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7374/4277/files/historia_da_filosofia_politica_strauss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3699/5495/files/avancemos_3_pg_204_unidad_4_etapa_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1477/3672/files/673713557.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/bodice_pattern.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/39450103038.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/447924525.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/bilinafazepovugufutesa.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/ac_to_dc_converter_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/21798335364.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/couper_pages_gratuit.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/nuloperapezudurudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9424/4008/files/nubuzarutapovegajikoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/to_kill_a_mockingbird_double_entry_journal_chapter_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/bawototogefodasuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2406/4410/files/84155474165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/3366/1077/files/grundfos_alpha2_l_25-60.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000be70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xBE70 20372 bytes
SHA-256: 22a7be28269b692b5b071d13ed9c30c2c15a2ce0beb48de2ff91f09070f9067e
font_00_sfnt_off00008a1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A1B 5096 bytes
SHA-256: 2cdc97d4c4d586885729f74c0d00c8a8ab931407c64ec75d4eb95468c73cee47
font_01_sfnt_off00009b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6D 10144 bytes
SHA-256: 16b1bd2e1ce11bae9b086aa3f5250e70247b04e939b06ea1efb1ee0feabd5af7

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