Malicious PDF — malware analysis report

Static analysis result for SHA-256 f34d99f3ba2726fe…

MALICIOUS

PDF

38.2 KB Created: 2020-08-22 22:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41434fed1b7cabf968d3575e88503a41 SHA-1: 5b490dae3ead6e9d7ee0aff1369a2bd7c2d10b0f SHA-256: f34d99f3ba2726fefc63a46feb5128cd97943e5dc18417b1d2239e31cefda5cf
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The presence of a 'download button' lure further supports a social engineering attack. The primary malicious URL is https://ttraff.cc/pify?keyword=crystal+activex+report+viewer+control+11.+5, which likely leads to further malicious content.

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.cc/pify?keyword=crystal+activex+report+viewer+control+11.+5
    • http://files.fitlikeflynn.com/uploads/1/3/2/8/132814071/befodijug.pdf
    • http://xunulifu.ellisbirdfarm.ca/uploads/1/3/0/7/130739664/nedowuj-motabigefuwone-fapaxeja-sidezabaj.pdf
    • http://files.supercontinent-bp.com/uploads/1/3/1/6/131636586/6103366.pdf
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/marx_trains_price_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/husqvarna_460_rancher_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/injection_blow_molding_process.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/panikaluboveronedi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/canvas_add_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/dion_boucicault_the_octoroon.pdf
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/dusan_kovacevic_balkanski_spijun.pdf
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/past_simple_passive_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/multiplication_tables_1-_12_printable_worksheets_blank.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/automobile_repair_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/football_trivia_questions_and_answers_easy.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_off00005642.bin
8e6e4f507d960b14b2dac45d0264cd50ec590e18660809495b157fab082dace4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5642 5364 bytes
font_01_sfnt_off000068b6.bin
84a9891f3aecf82e5605fd071a188ea421300939e666ffb53c88f2bb921dac5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x68B6 10248 bytes