Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6aebc78992669df…

MALICIOUS

PDF

43.5 KB Created: 2020-08-08 00:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5313bd1070f7e41c884690f376a1bfbb SHA-1: 265dfa130d33173f6f596bd7608c7dedc3264cfa SHA-256: b6aebc78992669df3b02256e9bbea611e0b13b7753ffb3b4f137b3b8a5d00a2e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=anencephaly+adalah+pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous links to other PDFs hosted on platforms like Shopify. The primary intent appears to be directing users to malicious infrastructure through deceptive links within the document.

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=anencephaly+adalah+pdf
    • http://files.snyder-pharmacy.com/uploads/1/3/1/4/131406799/33421.pdf
    • http://files.hlhas.com/uploads/1/3/1/3/131380759/mokimaxa.pdf
    • http://files.dmcipropertyinvestment.com/uploads/1/3/0/7/130775647/7940585.pdf
    • http://files.aboutastraliancobbeagles.com/uploads/1/3/1/8/131871424/003e30b67eff4.pdf
    • https://cdn.shopify.com/s/files/1/0431/7010/3452/files/53498759443.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/44096992774.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/29116735089.pdf
    • https://cdn.shopify.com/s/files/1/0431/1705/2066/files/rijijanomaminogomizuravat.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/pozefolekarulemiwetirida.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46824776831.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/84079158662.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/schoolboy_q_oxymoron_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/27077894061.pdf
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/fofigebutokesikabosejupu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/relajujilirapem.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/
    • https://cdn.shopify.com/s/file

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006be9.bin
961e9524f9bd5dc2724b078e4cfd26b76ed95fbc557757c9fdc0ada2dc29ef41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE9 5060 bytes
font_01_sfnt_off00007d35.bin
eb7b992028fd5bd23deedf450d8b62d2dd8613eec64190ebf4f858449a83a65b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D35 10404 bytes

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