Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3154941012b75fb…

MALICIOUS

PDF

43.0 KB Created: 2020-08-10 10:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cd51fbe5f5157bee84465bd9313b24f SHA-1: b45a8396e68716368e47caf4b399dcebbb010907 SHA-256: b3154941012b75fb25884cd55bd7ae5691464207841249067f1e85fb128623b2
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, it exhibits a PDF link farm, suggesting SEO manipulation for traffic generation. The presence of a visual download button lure reinforces the malicious intent. The primary malicious URL identified is https://ttraff.com/pify?keyword=general+affidavit+form+pdf+missouri, which likely serves as the initial point of compromise.

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=general+affidavit+form+pdf+missouri
    • http://sevase.charlotterealestatequeen.com/uploads/1/3/0/7/130739415/3665819.pdf
    • http://files.brunopernadas.com/uploads/1/3/0/8/130814529/a42d4399153494.pdf
    • http://vojiwizek.wanderlustlilies.com/uploads/1/3/0/8/130814017/8518687.pdf
    • http://fibotodom.nakedyogadallas.com/uploads/1/3/0/7/130775403/jomeginarosikag.pdf
    • http://files.capitaljumpers.com/uploads/1/3/2/6/132695517/3739180.pdf
    • https://cdn.shopify.com/s/files/1/0447/9755/8941/files/how_to_convert_cdr_file_to_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdf
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/ra_11054_bangsamoro_organic_law.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/48194217797.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5507/7786/files/problem_based_learning_activities.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1559/files/copy_and_paste_middle_finger.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/fio_test_scripts.pdf
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/acog_task_force_on_hypertension_in_pregnancy.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/14906432833.pdf
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/pikimisoxu.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_off000067ae.bin
039f639a88b43dd19d31d057daaec5f449bc7fd7baa4f760a3d168c63562432a
pdf-font-stream PDF embedded font (sfnt) at offset 0x67AE 5276 bytes
font_01_sfnt_off00007996.bin
b0f31a27830dcab11bd023464924d5d1e6da0ac9bad9c92073e8e2a4f762ca59
pdf-font-stream PDF embedded font (sfnt) at offset 0x7996 10944 bytes