Malicious PDF — malware analysis report

Static analysis result for SHA-256 796f042f464c22b1…

MALICIOUS

PDF

46.0 KB Created: 2020-08-09 00:58:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5faf2a8124d668f5d38a24f4d7868544 SHA-1: 652b25020ae14872ad2d65b4a907ff651a2f096e SHA-256: 796f042f464c22b156a7c05014e547f29f1258cb372e703ed926b59526fb0da2
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Sql server 2020 r2 installation step by step pdf' and includes a call-to-action button. A critical heuristic firing indicates that embedded links point to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=sql+server+2020+r2+installation+step+by+step+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm SEO tactic to improve search engine ranking for 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=sql+server+2020+r2+installation+step+by+step+pdf
    • http://files.montanoslandscaping.com/uploads/1/3/0/8/130873949/eeb98b02051ef8.pdf
    • http://files.joesettlesrealestate.com/uploads/1/3/0/8/130813899/40f82c32.pdf
    • http://files.engineersinmedicine.com/uploads/1/3/1/4/131452997/0eb80d43fb1fe9d.pdf
    • http://files.ausetgypsy.com/uploads/1/3/0/7/130775629/c8ff1484310dac.pdf
    • http://files.jessicavalenzuela.com/uploads/1/3/1/3/131379899/415988.pdf
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/cateterismo_vesical_de_demora.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.pdf
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/jiwudonafunekixulek.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/clinical_examination_of_farm_animals.pdf
    • https://cdn.shopify.com/s/files/1/0440/9635/6504/files/10597041966.pdf
    • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/20815466116.pdf
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/mawujivebopu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4486/3133/files/philips_lumea_precision_plus_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/update_ubuntu_command_line.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_off000072c5.bin
949a2cb04d28e0795703ddf7765ae074e1207f58a2b130080c8232544585247e
pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 5840 bytes
font_01_sfnt_off000086b7.bin
44d27ad5eaba5dcd107c19817c43176847d3c8611c6d3fe69a62cd339bd1f53f
pdf-font-stream PDF embedded font (sfnt) at offset 0x86B7 10484 bytes