Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d62c612dd606b59…

MALICIOUS

PDF

58.4 KB Created: 2020-10-28 11:08:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 68a8bea5502fbdb773f91f572272c299 SHA-1: 93089015060ba994f9ef4d46e32877ad347fb0be SHA-256: 5d62c612dd606b5917010a24c95e1c155aa7b767a245aa1724db33afaa5a000d
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file 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 3

  • 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.
  • 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://ggtraff.ru/strik?keyword=long+eared+hedgehog+breeder In PDF document text
    • https://cdn-cms.f-static.net/uploads/4412780/normal_5f967e23939a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379471/normal_5f9044ec7bd38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_5f870943a0190.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5f95886daf72a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373304/normal_5f8e25c7ee6db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xezonijida/que_es_el_materialismo_dialectico_yajot.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/76138166354.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/how_to_become_a_forex_trader.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/jedunugesinizalajafaraju.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/manual_aceites_esenciales.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/wupikalojikadozuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6e44669-41a6-4cad-be2a-a3397e707f19/wozivoseti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2586332-eca9-4b21-b89a-46af7eeab5a8/8974541568.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c5047c5-9940-4c6b-aa71-71a38d1de313/85026526618.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb08f2ce-9003-4ef3-9131-ed7de907f90a/magix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea058b5a-3c39-4c0e-b314-eb9ab4a91212/andrea_vilas_boas.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 5

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_005_off0000b6d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB6D8 22560 bytes
SHA-256: 0ff29f49118ab1f653b0ecbf897b64dd8e7449b0b1b0be5460a4b8b44e649679
font_00_sfnt_off0000808d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x808D 4960 bytes
SHA-256: 9792cb0d307e38fc9a1173dd98fe2941c76725e7688d35db73953fbfa24d11b8
font_01_sfnt_off00009160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9160 10860 bytes
SHA-256: 1784d778113376225652abdef81534509b1a4e42744becc57233aef3e093950c

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