Malicious PDF — malware analysis report

Static analysis result for SHA-256 d359a920973b7a63…

MALICIOUS

PDF

45.2 KB Created: 2020-08-08 23:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 904a861dc9788d6066a6c70b3f3c0b06 SHA-1: 432858a6ecbf9ebb210656a066d551b9ccb9dd10 SHA-256: d359a920973b7a631b67e59d30ef5ba9e0cce008de139830a7956ea458789ef0
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary URL, 'https://ttraff.com/pify?keyword=tabella+categorie+catastali+pdf', is flagged as a malicious redirector. This suggests the document's purpose is to lure users through search engines and redirect them to potentially harmful content.

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.com/pify?keyword=tabella+categorie+catastali+pdf
    • http://files.poweroftheflowers.com/uploads/1/3/0/7/130776661/duvuzemiwa_zulesidob_dalikigasutuvo_zuxat.pdf
    • http://files.mccullochsfitness.com/uploads/1/3/2/6/132695513/285403.pdf
    • http://files.brittanyrhager.com/uploads/1/3/1/4/131454090/gofepubisajutumem.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/epsilon_alt_code.pdf
    • https://cdn.shopify.com/s/files/1/0430/8847/8359/files/52250638467.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/estgios_da_doena_de_alzheimer.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/setunubovoda.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/34659740471.pdf
    • https://cdn.shopify.com/s/files/1/0430/6678/5953/files/13615285729.pdf
    • https://cdn.shopify.com/s/files/1/0434/1976/2855/files/meningite_bacteriana_na_infancia.pdf
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/que_es_el_balanced_scorecard.pdf
    • https://cdn.shopify.com/s/files/1/0431/7616/5536/files/41764086019.pdf
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/kalibesanupovujirow.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/8272369034.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e41.bin
39a1f8efc203dd6a4218b84d1a64c1846283dad5cd972a162ae0169b3768032d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E41 5092 bytes
font_01_sfnt_off00006f9e.bin
be762fc6376c2a8040d1cfae0d353aad465ac4d638eb1baa87b9c17a566de402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9E 13820 bytes
font_02_sfnt_off00009a27.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A27 4324 bytes

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