Malicious PDF — malware analysis report

Static analysis result for SHA-256 742dd5852e38ed14…

MALICIOUS

PDF

50.0 KB Created: 2020-08-27 19:55:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6fa701db716391122f56481e5c5bfad SHA-1: f20f8561c97df58a0e5eb66d21d4508f73fe9b0c SHA-256: 742dd5852e38ed14c5258ed2dd79601eb30508e7c795581ee5ae86c21d8a53e4
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=para+utilizar+conte%25C3%25BAdo+onlyfans+sem', is flagged as a malicious redirector. The document body and heuristics suggest a lure to access restricted content, likely leading to a phishing or malware site. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm used for SEO manipulation or distributing further malicious content.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.cc/pify?keyword=para+utilizar+conte%25C3%25BAdo+onlyfans+sem
    • http://files.motherlodemusicalmarin.org/uploads/1/3/2/7/132741207/4690695.pdf
    • http://files.lifepathchurch.org/uploads/1/3/1/4/131407493/nimivinifezin.pdf
    • http://files.bsapack1hk.org/uploads/1/3/0/7/130774994/gigazomujibaporowa.pdf
    • http://sawajenaw.earlyfruithempco.com/uploads/1/3/0/8/130874674/rupuxososavupu-xesumuni.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/0768/0405/files/bukogoxewokupi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/mativifedefowudobumufupa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/mifijativubus.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4080/files/culvert_design_and_operation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/livro_psicologia_aplicada_a_administrao_de_empresas.pdf
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/fall_of_roman_empire.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/equipos_de_absorcion_atomica.pdf
    • https://cdn.shopify.com/s/files/1/0449/8548/3422/files/23851604924.pdf
    • https://cdn.shopify.com/s/files/1/0431/5512/8477/files/13823545953.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e50.bin
398ae3158d6cf007a578c04c2b0dd3464625550f616059f3280cc5ab6a608593		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E50 5436 bytes
font_01_sfnt_off00009089.bin
cc0d585091a070bfc7f8dafa26e7f25ba4434df696a6243b5ebd519c88d58219		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9089 13300 bytes

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