Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a4338181adb66e…

MALICIOUS

PDF

46.6 KB Created: 2020-08-24 12:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 889dad327844540195569c37537d1d34 SHA-1: ca75e6c295b6f2fd54a0c0273fdd4ff3170935e3 SHA-256: 30a4338181adb66ebbe4865c968757264a75b205f0fb623c68f551cbd0f4a972
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to what appears to be a link farm designed to mimic legitimate content, such as product listings ('answear sukienki missguided'). The primary malicious URL, https://ttraff.com/pify?keyword=answear+sukienki+missguided, is identified as a redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content or phishing lures under the guise of legitimate-looking documents.

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.com/pify?keyword=answear+sukienki+missguided
    • http://zutenez.jumpinrealestate.com/uploads/1/3/2/8/132814930/ropegel-xaremifofe-rupudonura.pdf
    • http://files.redesignforwholefamilies.com/uploads/1/3/1/8/131857193/jowudakavesof-rusodisoton-zofokizubolas.pdf
    • http://files.michigansnowboardmuseum.com/uploads/1/3/1/4/131483955/182843.pdf
    • http://wuwon.liftingthecurtain.net/uploads/1/3/1/3/131383329/kugafaluzeveserugo.pdf
    • http://files.ccumc.us/uploads/1/3/0/9/130969999/464889e0a666e7.pdf
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/gefog.pdf
    • https://cdn.shopify.com/s/files/1/0438/2890/4093/files/38314496047.pdf
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/50738827405.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/mobil_atf_320_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/6310/6968/files/74793518180.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/tafiwupiwenogafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4484/7261/files/77217685031.pdf
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/likutujetedabip.pdf
    • https://cdn.shopify.com/s/files/1/0437/7473/8593/files/vuninadi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.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_off00006e85.bin
6d6c54dc292c1306b56b8107c9cfcfd151c7c9dc647ed9e4ed0b6432a2d97fbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E85 5260 bytes
font_01_sfnt_off0000805d.bin
2c79594709a2f137a02d1f8e45941d765ee90d2ddf07f2b7705f4a2b6da236f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x805D 14660 bytes

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