Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa8fdf0ba05af241…

MALICIOUS

PDF

46.2 KB Created: 2020-09-29 09:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0236081ff6a8fdc3dd7a9b9102842b15 SHA-1: c48f557753267c92b4ea25681b5c9f50babebd2b SHA-256: fa8fdf0ba05af2418cd9ba1fd5e700518d864999a36ee240824e71d349fb85e0
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector: https://cctraff.ru/mozel?keyword=disney+world+map+magic+kingdom+pdf. The document body, though heavily obfuscated, appears to contain similar URL fragments, suggesting the primary intent is to redirect the user to malicious infrastructure. The presence of a large number of external links, many hosted on cdn.shopify.com, indicates a link farm strategy, likely for SEO poisoning or distributing further payloads.

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.
  • 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.
  • 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/mozel?keyword=disney+world+map+magic+kingdom+pdf
    • http://files.mult.honest-elections.com/uploads/1/3/2/8/132814996/6274883.pdf
    • http://lijur.domesticagenda.org/uploads/1/3/1/8/131856754/fenowurexuv_nerunuvu_jezareloxifoj.pdf
    • http://ritopove.mylendingleaves.com/uploads/1/3/0/8/130873851/59804d68d3806.pdf
    • http://files.sunsetparkavenues.org/uploads/1/3/0/7/130775743/5690656.pdf
    • https://site-1037178.mozfiles.com/files/1037178/90309450353.pdf
    • https://site-1036923.mozfiles.com/files/1036923/33706771100.pdf
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/animal_jam_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/dexenirapulubenigawepalu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9501/files/81718491429.pdf
    • https://cdn.shopify.com/s/files/1/0427/8868/3932/files/soundcloud_free_for_laptop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/4207399707.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3990/files/eros_las_vegas.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000755a.bin
33cc71b5836cf113fa9f11300694c1e6c836017adddaf88724abcb7ac0b1889e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755A 5732 bytes
font_01_sfnt_off000088ec.bin
0499e3235ce7a66a3b63f2352c16e1b380a64e44b637f449d35164c1100bb9b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88EC 10364 bytes

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