Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11c646ef905c094…

MALICIOUS

PDF

42.2 KB Created: 2020-08-18 19:28:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0710c079f9202b1d082d6ef492736a0e SHA-1: d2c8786cc5e27b940c7a0b1a3b015df223a46d15 SHA-256: e11c646ef905c094879fcc5220c4eacbb3c13ed570cdf529677c158099ce857d
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=apple+app+store+pdf+scanner'. This URL is embedded within the document body, suggesting a phishing or malware delivery attempt. The presence of a large number of external links, many hosted on Shopify, further indicates a link farm designed to obscure the true destination or spread malicious content. No scripts were extracted from this sample.

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=apple+app+store+pdf+scanner
    • http://gogisomi.danceinstyle.net/uploads/1/3/2/7/132740580/576150.pdf
    • http://files.thismatteroffaith.net/uploads/1/3/1/4/131406498/vewirenigazubi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3673/5645/files/wiwojawujib.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/74704208865.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/legasumaferusubevenat.pdf
    • https://cdn.shopify.com/s/files/1/0435/5286/6467/files/nomura.pdf
    • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/direct_and_inverse_variation_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/sum_column_in_report_viewer.pdf
    • https://cdn.shopify.com/s/files/1/0437/1267/5995/files/mentoring_agreement_form_example.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
    • https://cdn.shopify.com/s/files/1/0437/4285/5319/files/76620842079.pdf
    • https://cdn.shopify.com/s/files/1/0434/0681/9477/files/kizoxerimuvomabejiwapo.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_off0000674b.bin
3cac13955f4ebe81301fe29acafe831ce0ed044cbb74113e8c6315d4e03d5df5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x674B 5140 bytes
font_01_sfnt_off000078d2.bin
896fbb70f95af50f81eb28b4ed14a3abd3491d5a6258ccaf6ca8bd9dcc4b148b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 10400 bytes

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