Malicious PDF — malware analysis report

Static analysis result for SHA-256 542289fbcc228813…

MALICIOUS

PDF

42.4 KB Created: 2020-08-06 10:19:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f6c14e0fd929824e1e25ca623a839a5 SHA-1: e0d95ed0a328c432c9728f9bd7bd871cff20a4a6 SHA-256: 542289fbcc22881346d2d3151034d6508f04c94891a76deb4150e593c89c95da
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 link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=annamaria+testa+la+pubblicit%25C3%25A0+pdf', is flagged as a known malicious redirector. The document body text appears to be obfuscated or corrupted, but the presence of numerous links suggests an attempt to drive traffic or distribute further malicious 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.ru/pify?keyword=annamaria+testa+la+pubblicit%25C3%25A0+pdf In PDF document text
    • http://waked.teamschusterindy.com/uploads/1/3/0/8/130813612/b25865f47.pdfIn PDF document text
    • http://files.bearsgardencenter.com/uploads/1/3/1/3/131379211/181b686a.pdfIn PDF document text
    • http://teruz.thebroomclosetmemphis.com/uploads/1/3/2/6/132695663/wixev.pdfIn PDF document text
    • http://files.pennstatecsl.com/uploads/1/3/2/6/132682792/9910b99dad1e.pdfIn PDF document text
    • http://files.monawitt.com/uploads/1/3/1/4/131438137/9619889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/panera_bread_printable_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/alouette_ce1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/39447489076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4266/6656/files/sujomonipalonifonok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/93578159580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/torijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8881/9864/files/11666383389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3363/files/accounting_principles_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/anemia_celulas_falciformes_y_embarazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7978/files/pathfinder_kingmaker_weapon_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2670/9665/files/zusiwexax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2057/3082/files/baixar_catlogo_avon_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/xibinuripefulotemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9513/0266/files/wexitenugozazimolifojonak.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006322.bin
aa0f9648649da05b7f3ae6ba8040faf75d3b88c3b815751bddebfe8ffc2ac4e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 5664 bytes
font_01_sfnt_off000075ba.bin
cacb6015df2dc6ac859b87993ee39fa4676213061623b82a4e7d9f7263045503
pdf-font-stream PDF embedded font (sfnt) at offset 0x75BA 11660 bytes