Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5d57c7f2735f243…

MALICIOUS

PDF

38.3 KB Created: 2020-08-11 02:47:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 660947fa7cb5ffe52bfca152d1ccbdff SHA-1: ff8c9cac13132f8e0bf904a7f42724c67e936441 SHA-256: e5d57c7f2735f2431a41580bcd29b6ab88f5e3af00d372c3baeb2b4089623e6a
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=foundations+of+web+design+pdf'. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or to download further malware. The document body, though heavily obfuscated, contains text related to web design and the PDF generation tool, likely as a lure. No scripts were extracted from this sample.

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=foundations+of+web+design+pdf
    • http://kobos.artfulmaths.com/uploads/1/3/2/6/132695278/fevawep.pdf
    • http://files.glasskiteanthology.com/uploads/1/3/1/3/131384401/4859110.pdf
    • http://ropod.stpetersnsdunboyne.com/uploads/1/3/1/1/131164250/7aff28270b.pdf
    • https://cdn.shopify.com/s/files/1/0437/8070/2366/files/sukubagile.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/xixumivonibufawujugawuza.pdf
    • https://cdn.shopify.com/s/files/1/0435/5427/5479/files/jiregugevibafil.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/11319679145.pdf
    • https://cdn.shopify.com/s/files/1/0433/0248/6180/files/47016298167.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4701/files/pawudobusozitaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6011/7160/files/what_happened_to_kissanime.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/sarisobuvebifafutekovew.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/capitalization_worksheets_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/87438034267.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/rofekixapur.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_off00004b1a.bin
59b60ce385cf4c1fe0fca3e8406dd93fbb2faa03cac488317ca619abd1614e62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B1A 5148 bytes
font_01_sfnt_off00005cc5.bin
35aa0936b30a74f8ffb8c13b14d74fb14e85b52f216ac79bdeb6880ec1f0854c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC5 9756 bytes
font_02_sfnt_off00007e33.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E33 4324 bytes

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