Malicious PDF — malware analysis report

Static analysis result for SHA-256 51bc29957bec9308…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 06:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff58e348e391cedab1281fbb05ead1ca SHA-1: 0a34d0221c9e3fb259c73487dc051426ec1e0051 SHA-256: 51bc29957bec930835b502a2f78015a37b94faa554127936f2f6ccf70ba2aebd
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a 'power cooker manual' keyword. This indicates a social engineering lure to entice users to click the link. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The primary malicious IOC is the redirector URL.

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=power+cooker+manual
    • http://files.freedomheroesusahealingsanctuary.com/uploads/1/3/1/6/131607005/retutiretezese_gezani_weronobedetuxo_xarozo.pdf
    • http://files.pioneervalleykennelclub.com/uploads/1/3/0/8/130814101/tikodokewido.pdf
    • http://files.legacyautollc.com/uploads/1/3/1/3/131379732/zotuvomobakiwozi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/mavipozerakuneduvo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/59365091296.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1424/files/84671213021.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/zejuzudo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4219/3058/files/dopevup.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5300/files/ark_dye_command.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/65686720125.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.pdf
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/95095216932.pdf
    • https://cdn.shopify.com/s/files/1/0440/5926/3141/files/sibuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/72007710851.pdf
    • https://cdn.shopify.com/s/files/1/0438/4430/5056/files/43731703166.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_off00006ae0.bin
44da3f69a306576a95b6054c64979b6f479fec6568087abf94cf1d0b896b350b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE0 4924 bytes
font_01_sfnt_off00007ba1.bin
ae36ee4be9305639ba5a02446b742c1242c0572984358a4cd4bdade2e84f498c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA1 10440 bytes

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