Malicious PDF — malware analysis report

Static analysis result for SHA-256 20c20ff76eff2b6b…

MALICIOUS

PDF

44.0 KB Created: 2020-08-11 14:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b925250b28f5543d84081a246c846477 SHA-1: a969d985a04846c054da766f7420d4db9c99001b SHA-256: 20c20ff76eff2b6bc5eb01216b7c10c45ed6c9cb639839994fd285d4c285611e
128 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. The presence of a 'download button' heuristic further supports the lure. The primary malicious URL is ttraff.com, which is used in a phishing context to redirect users. The document body contains garbled text but includes the malicious URL and a benign-looking Shopify URL, likely part of a link farm.

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=catalogo+hinode+pdf+baixar
    • http://jafigu.awea-duo.com/uploads/1/3/0/7/130739227/wawukewub-lokutofujug-tibiki.pdf
    • http://rabojunos.affirmativeresearch.org/uploads/1/3/0/8/130874253/7a0f7f.pdf
    • http://files.anthonyluissanchez.com/uploads/1/3/0/9/130970001/5470647.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19941062624.pdf
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/gojifonoxapoma.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/83623500244.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdf
    • https://cdn.shopify.com/s/files/1/0436/9294/9658/files/big_file_sample.pdf
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/sisidomoxuvaxekedusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/charlotte_s_web_archive.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6115/files/84740444952.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/ship_girl_anime.pdf
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/49964447534.pdf
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/toraworenopupegorekuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/wogelo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/fetuwiwinigo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c68.bin
2c24d58c68b17dec8078ea8cf162e96647f4366044b34b7963fa5c4dc09ec8c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C68 5144 bytes
font_01_sfnt_off00006ddf.bin
221a76e0ef6e0ac7527dfd0cc4200451caf1836ba20f2af4a63d75424d251774
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDF 12080 bytes
font_02_sfnt_off00009470.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x9470 4324 bytes