Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf4b4f6214ac2da…

MALICIOUS

PDF

43.8 KB Created: 2020-08-01 19:50:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bd0b19e58bdba85678931bff3e50f65 SHA-1: 959dd75b6dbb2c1401c7161b734fc76a67c3b95d SHA-256: 8bf4b4f6214ac2da459f170796ee215c33031c825a46eb2ea4557a32c0b1ce54
160 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, indicating a fraudulent intent. It embeds numerous links, with one specifically identified as a malicious redirector pointing to 'ttraff.cc'. This redirector likely leads to further malicious content or phishing pages. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs hosted on Shopify, suggesting a link farm used for distribution.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=image+10.+0+treadmill
    • http://files.triaddjservices.com/uploads/1/3/1/8/131871984/c9c655ba22cdd0.pdf
    • http://files.onestitchtwostitch.com/uploads/1/3/1/4/131407164/gofogexujukijobu.pdf
    • http://files.mauriceparent.com/uploads/1/3/0/7/130738614/64e172e7e.pdf
    • http://files.hillcountryyoungmarines.com/uploads/1/3/1/3/131384113/5485733.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/jofuvelutefosukuzumere.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/vutufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/voxul.pdf
    • https://cdn.shopify.com/s/files/1/0432/6208/3232/files/65468962242.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/2987/files/66882059587.pdf
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/pidebazet.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/46886433060.pdf
    • https://cdn.shopify.com/s/files/1/0432/0319/9136/files/19075617652.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/rizaxewixikigonum.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/86600154629.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/4156888794.pdf
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/26892244273.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_off00006d0a.bin
9c95bfbcac944224d5a08410ccde488fb0165ee98a3ac9f74bd19137261ba334
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 5128 bytes
font_01_sfnt_off00007e64.bin
8b9b0205e3879c172362fc2bd38163c05785cf6393b049c1609b0c5646ac8761
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E64 10512 bytes