Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a4b34a3b22f8bb7…

MALICIOUS

PDF

35.2 KB Created: 2020-08-31 11:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 964d426847cc51d2d93ec13dab720b1c SHA-1: 4e22234028d29f8760e86113ff9b48e9e4947617 SHA-256: 7a4b34a3b22f8bb73ac87789e885d6a0cb5ad0ad92ad226f3ab2e8dd4f9fe72f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=dragon+ball+z+kai+torrent'. This indicates the document is designed to lure users to malicious infrastructure. The file also exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted from this sample.

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/wix?keyword=dragon+ball+z+kai+torrent
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/simiduwas.pdf
    • https://cdn.shopify.com/s/files/1/0434/1048/9496/files/salary_certificate_form_ebs.pdf
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/template_banner_vector_png.pdf
    • https://cdn.shopify.com/s/files/1/0435/4349/4815/files/89408503912.pdf
    • https://cdn.shopify.com/s/files/1/0438/5921/4496/files/mesezozanutiganuvubunow.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/ndt_level_3_basic_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/1766/5703/files/coding_interview_questions_narasimha_karumanchi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/bugavolenu.pdf
    • https://static.usrfiles.com/ugd/1fa6dd_2f5680a2844341169b018955155bde3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_f69efc7993d64722bb3375252cf638f6.pdf
    • https://static.usrfiles.com/ugd/756799_a23e5ce8b65b485095498205a5017a87.pdf
    • https://static.usrfiles.com/ugd/edb4a7_c16a9640f6a442d8a0fdcb5e5152de44.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fbd2d066e994924b91262e8908c4f5d.pdf
    • https://cdn.shopify.com/s/files/1/0432/8577/4502/files/monster_hunter_world_wyverian_print.pdf
    • https://cdn.shopify.com/s/files/1/0449/9626/4094/files/ghazi_novel_by_abu_shuja_download.pdf
    • https://cdn.shopify.com/s/files/1/0462/2771/8293/files/cancer_de_prostata_sintomas.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_off00004c27.bin
6eb9f5561ac31dcc0cdb6a103ac4043578b9e2e553b406f440fe4db9b011d012
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C27 4928 bytes
font_01_sfnt_off00005d05.bin
0a482b0815c0dbb939cab7171fcbb1e85c3bbcd0dacb06dc4bc6620d710d2799
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D05 10168 bytes