Malicious PDF — malware analysis report

Static analysis result for SHA-256 76747df989e67921…

MALICIOUS

PDF

53.6 KB Created: 2020-08-25 19:30:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0dd2c79f4b5006adffb907d517ef2a7 SHA-1: 6df5452ca0594bb0dd1fea25cbae80fe809b450c SHA-256: 76747df989e67921c44c1d6dd4b82b001234b322dd4c61a86753cefa4952f4c6
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=canon+cp800+driver'. This suggests a phishing or scam attempt, likely using the guise of a driver download to entice clicks. The presence of many other PDF links, some benign and some unknown, indicates a link farm or SEO manipulation tactic. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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://ttraff.com/pify?keyword=canon+cp800+driver
    • http://files.thebayshorecondos.com/uploads/1/3/1/4/131438150/fopapef.pdf
    • http://files.friendsnorthcreekforest.com/uploads/1/3/2/6/132682235/bafukazam_mipupezibipag_diveza.pdf
    • http://fipitote.elainedodgecopy.com/uploads/1/3/0/8/130814347/rerigan.pdf
    • http://kekozir.spotlightpac.org/uploads/1/3/1/3/131384635/makawemoxek.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/9028/7517/files/neoliberalismo_e_educao.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1695/files/autores_de_libros_de_administracion.pdf
    • https://cdn.shopify.com/s/files/1/0431/3638/5181/files/20906831735.pdf
    • https://cdn.shopify.com/s/files/1/0430/6852/2657/files/zusiboti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wemulaw.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8114/files/insert_bullet_points_in_google_sheets_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/rikuzeku.pdf
    • https://cdn.shopify.com/s/files/1/0435/7593/5134/files/botoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/10841128949.pdf
    • https://cdn.shopify.com/s/files/1/0438/6501/4432/files/chiari_malformation_found_in_adults.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081a8.bin
70854947cba8a72841929161b1eb1666a015a1ba1f63b7d4e2ef1d302dff9f3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A8 4984 bytes
font_01_sfnt_off0000929e.bin
1c03e9cfedf7af7f2614d60f0cd52d9209c5e97a2b818d1b5433a31693cfbae9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x929E 14952 bytes
font_02_sfnt_off0000bba8.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA8 4324 bytes

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