Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4c3ef0f89d56b71…

MALICIOUS

PDF

44.6 KB Created: 2020-08-25 01:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 081a474332380841c50587adec57c2f4 SHA-1: 048eb1cd3b40e5b28406eabc72c259fb9650e380 SHA-256: d4c3ef0f89d56b71c838c0e8950c2668c481d113c2dd15e82cf73836fce51c0f
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but also includes a critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting a deliberate attempt to create a link farm for SEO poisoning or to direct users to malicious content. The presence of a known malicious redirector indicates a high likelihood of a phishing or malware distribution attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=gdpr+policy+template+uk+government
    • http://files.breastlearningonline.com/uploads/1/3/1/4/131453299/gevufiforuja.pdf
    • http://files.exquisiteeffects.com/uploads/1/3/0/8/130813694/julivufiromes.pdf
    • http://files.reviveevents.net/uploads/1/3/0/7/130776769/9995375.pdf
    • http://files.spiritfireshaman.com/uploads/1/3/1/4/131453348/lemidaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/3885/7623/files/54256700898.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/nusesupefekuwexawikel.pdf
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/beautiful_creatures_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/8548/7516/files/vavinajonefuza.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/stephen_king_riding_the_bullet.pdf
    • https://cdn.shopify.com/s/files/1/0435/8189/8913/files/jiwoki.pdf
    • https://cdn.shopify.com/s/files/1/0431/3779/4204/files/multiple_inheritance_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/5192967800.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/xifilejulologowagaroga.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/76322504669.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_off00006fe7.bin
01ffe641f007cf27b82a68e635238a427751009b1fce65924d5430d74aa800c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE7 5472 bytes
font_01_sfnt_off00008284.bin
f0d80b16485f6e40157ff2f629942e4ca4d394f6a7f592cf1178a8c64175afb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8284 10268 bytes