Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b8bc5fcf0360ca…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 20:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4333ee93173b920b29579355d008fdfa SHA-1: 787b6964f149aec9217d3ed5e36ffb93b1d6da7b SHA-256: c0b8bc5fcf0360ca283a920caa198ddb6c25ea061d5cf3fb3a08797c47d22e11
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, with a critical heuristic firing indicating a link farm and a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=tri+fold+brochure+template+free+pdf'. While many links point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest a malicious intent, likely for SEO manipulation or user redirection to harmful sites. No scripts were extracted, and the document body was heavily obfuscated.

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.cc/pify?keyword=tri+fold+brochure+template+free+pdf
    • http://wusijawu.splashcitysoaps.com/uploads/1/3/0/7/130738720/reraraz.pdf
    • http://penowa.pfcmooremess.com/uploads/1/3/0/8/130814328/9377110.pdf
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.pdf
    • http://files.davidmontwe.com/uploads/1/3/1/4/131454373/93006e4.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/anarchist_cookbook_2016.pdf
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/10170956559.pdf
    • https://cdn.shopify.com/s/files/1/0437/7313/2961/files/zovewizurapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zemivok.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/5843033671.pdf
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/kowurutevifumakepupenatal.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/what_is_iphone_model_a.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/moviref.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1823/files/tozapebutajivamepifedoni.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/25864055968.pdf
    • https://cdn.shopify.com/s/files/1/0431/3491/0618/files/el_autoestima_tesis.pdf
    • https://cdn.shopify.com/s/files/1/0435/4647/6708/files/beyonce_killing_me_softly.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/80668574059.pdf
    • https://cdn.shopify.com/s/files/1/0438/4518/9792/files/70323249672.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_off000065cc.bin
6f73eda82c90951c30e0c8c162bf07f5ebb5e80ab70e475de528f24ac917736e
pdf-font-stream PDF embedded font (sfnt) at offset 0x65CC 5308 bytes
font_01_sfnt_off000077aa.bin
28a1bb8f76e049c64ee7ce775004b580df2729326246bbffbfbce190a868ed40
pdf-font-stream PDF embedded font (sfnt) at offset 0x77AA 10620 bytes