Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4487be7dba82fa…

MALICIOUS

PDF

39.7 KB Created: 2020-08-29 03:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cfa667391ecae85c947cb8f9a768da6 SHA-1: b2e1ab090b3083bebfb625559de4773ddc79c8fa SHA-256: 7e4487be7dba82faef9952d5b6fce8e671bc333abcc3e3e8f6779d41a76d16c3
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, many pointing to Shopify domains hosting other PDFs. One critical heuristic indicates a malicious redirector link to 'ttraff.club', suggesting a phishing or SEO manipulation scheme. The document body is heavily obfuscated but contains the same URLs, reinforcing the link farm and potential redirection attack pattern. No scripts were extracted, limiting further analysis of payload delivery.

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.club/wix?keyword=block+craft+3d+guide
    • https://cdn.shopify.com/s/files/1/0462/5019/7146/files/takawesipen.pdf
    • https://cdn.shopify.com/s/files/1/0429/8883/0873/files/accident_report_form_as_per_factory_act.pdf
    • https://cdn.shopify.com/s/files/1/0437/2732/3301/files/pesipisokolaligebo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6288/6549/files/windwalker_monk_pve_talent_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/8611/0110/files/gizuwisovarivex.pdf
    • https://static.usrfiles.com/ugd/b8c837_d05f0c953a8b45b883990788c19958dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_06a9dc8ef38e4806ba7a746ce811dd53.pdf
    • https://static.usrfiles.com/ugd/b8c837_64e5bb49698a4c9bad2780874bc10da0.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc7a68105eab4662814b48350b85eaa7.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e7c60119e7a47c4bb0677d44fedcb88.pdf
    • https://cdn.shopify.com/s/files/1/0439/0223/8875/files/ballade_pour_adeline_klaviernoten.pdf
    • https://cdn.shopify.com/s/files/1/0440/7725/2760/files/irs_nmero_para_hablar_a_una_persona.pdf
    • https://cdn.shopify.com/s/files/1/0434/2385/8845/files/cerfa_taxe_formation_professionnelle.pdf
    • https://cdn.shopify.com/s/files/1/0430/9712/9109/files/83630794506.pdf
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/lipsy_london_dress_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/6533/4165/files/gefapomurewexirefomodego.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.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_off00005d23.bin
821dd422429e5c0994fac831feed21009bf1e2bbb16b9cb3a7782996866243b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D23 5288 bytes
font_01_sfnt_off00006f28.bin
fa4bb31b3761cdd5fe61b938624bc3c02ae1fcfc7a541a621ec4a4bd039beb2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F28 10396 bytes