Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2123c05699094c7…

MALICIOUS

PDF

39.1 KB Created: 2020-08-13 00:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c80e33508287b3a2973d5c0349914b70 SHA-1: a356452427ad8e4f2dd9928e93ee7a3bcc53c5e4 SHA-256: c2123c05699094c7eff5e0dbf11ae8e5f8966d2a94f422cfcac3825d82acc926
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical finding indicates a direct link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector, further supporting this attack pattern.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=acupuncture+treatment+points+guide+pdf
    • http://files.pmd-geoffbarker.com.au/uploads/1/3/1/4/131408256/2337566.pdf
    • http://files.lafontanabocaraton.com/uploads/1/3/1/4/131408280/gukikuket_pamabudutiso_megawizix_xuwesazelo.pdf
    • http://files.zenithbirthservices.com/uploads/1/3/0/7/130776433/dc8de6774d277.pdf
    • https://cdn.shopify.com/s/files/1/0435/6695/6707/files/62490434709.pdf
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/holistik_integratif_paud.pdf
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/lagiwojexilakux.pdf
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/godaddy_com_whois.pdf
    • https://cdn.shopify.com/s/files/1/0431/0633/6924/files/acta_constitutiva_de_una_empresa_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/16672644759.pdf
    • https://cdn.shopify.com/s/files/1/0435/8828/8675/files/celtic_art_the_methods_of_construction_george_bain.pdf
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/1st_edition_monster_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/4573366869.pdf
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/36315940209.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/92294660655.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/rational_root_theorem_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/50103183539.pdf
    • https://cdn.shopify.com/s/files/1/0437/7418/1534/files/marketing_public_relations_giannini.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_off000059b2.bin
c56add0d7e3e2a8529cadc07d6bc75cc0b6f50403f6f0068873df678fa190cc4
pdf-font-stream PDF embedded font (sfnt) at offset 0x59B2 5432 bytes
font_01_sfnt_off00006c0e.bin
9e4881f5de05ba4433a4a1d71050721ac7c2e315e52cdc2e80b66e1bae05b83b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0E 10352 bytes