Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7d0a5a054e0d3b6…

MALICIOUS

PDF

43.2 KB Created: 2020-08-21 19:15:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a37d207195ca533150275b79e1f6f31 SHA-1: 1f2b07052f79d46533111da2f8b51a3c116c3437 SHA-256: d7d0a5a054e0d3b6938f9605caea1f72b4712968c9d8db52f270f7287d3257d4
160 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic identifying a link to a known malicious redirector. The document body and heuristics suggest a lure to download a password-protected archive, likely to bypass security scanning. The primary malicious URL is ttraff.com, which redirects to a Shopify-hosted PDF.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=get+your+guide+vs+tripadvisor
    • http://maxeka.bcartglass.com/uploads/1/3/0/9/130969690/9f757be8a8.pdf
    • http://files.faliselogisticstravel.com/uploads/1/3/0/7/130739247/3199638.pdf
    • http://files.precisionrifle.shop/uploads/1/3/1/3/131383319/996c38e08b48f.pdf
    • http://sukusuwi.southernidaho.org/uploads/1/3/2/6/132680813/70890.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/add_password_to_zip_file.pdf
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/gozefadutolezepabupi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4951/7205/files/cuda_ubuntu_16._04.pdf
    • https://cdn.shopify.com/s/files/1/0435/1619/9064/files/nitixalipegug.pdf
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/lukudopon.pdf
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/18708625703.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/71489960747.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/machine_design_4th_edition_norton.pdf
    • https://cdn.shopify.com/s/files/1/0435/5699/5233/files/pifijudapumiki.pdf
    • https://cdn.shopify.com/s/files/1/0437/9253/1617/files/xss_filter_evasion_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/gaguvozederukimorunagos.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3645/files/twilight_breaking_dawn_part_2_lk21.pdf
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/93446318102.pdf
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/9421820622.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_off000069e0.bin
4edc44cbdd62233a374b0dc92fc0dd2f810455aa9ba62cc7ff633b7cc44f46f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x69E0 5288 bytes
font_01_sfnt_off00007c08.bin
352d13855ab9958df0977906c018d195892f5d485735524281e70c96b38c0467
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C08 10444 bytes