Malicious PDF — malware analysis report

Static analysis result for SHA-256 44f469dce524b85e…

MALICIOUS

PDF

48.9 KB Created: 2020-08-04 14:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57163a076cb1b533e797920a2b945b68 SHA-1: 25785c4daccbd49294d95c13fe9a898e00c8ba3f SHA-256: 44f469dce524b85e07b60161ce06f8e7c7868e004a3863b80623733daf208f01
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.cc'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content. The document body, though partially corrupted, contains text related to a PDF title and the authoring application, which is consistent with a lure document. The primary attack pattern involves redirecting users to malicious sites via the embedded links.

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://ttraff.cc/pify?keyword=cantico+delle+creature+pdf+mondadori
    • http://taxefu.coleman4wcsb.com/uploads/1/3/0/9/130969054/pogigogox-zuripani-bifuloluleb-xomesafaripu.pdf
    • http://files.medinacares.org/uploads/1/3/2/6/132681342/lojezitupawow_zazosutas_mamalezefoga.pdf
    • http://files.quranhomepro.com/uploads/1/3/1/8/131871424/b7a443.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/2947306117.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/daxajo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/49498331847.pdf
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/sosipigepedafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/vutaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5081/8981/files/56980177379.pdf
    • https://cdn.shopify.com/s/files/1/0432/8272/7067/files/bodawasofovagarazenexuk.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/maniac_magee_activities.pdf
    • https://cdn.shopify.com/s/files/1/0429/4085/8527/files/34623205203.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_off00008035.bin
4b5aee30471403d2b48f4d4c689a8c8bc3fb33fc36e47958409dd84912674ef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8035 5028 bytes
font_01_sfnt_off00009139.bin
f4ee56d2b759bcff5852dabc05c23fc657bee831f9e73e2713a8ca124132ed5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9139 10924 bytes

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