Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ca98bc157cc214…

MALICIOUS

PDF

44.7 KB Created: 2020-08-18 13:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 413e09e3287b7f43fea3016df1386819 SHA-1: 001d1e0182b351694ee653322e79d3744d26b432 SHA-256: 23ca98bc157cc214ef99db43f35b1e1a105cb62eb74010d41997a90f494f7913
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a direct link to a redirector URL, indicating a social engineering lure. The document body, though heavily obfuscated, contains text related to 'Family tv series episode guide' and the malicious URL. The primary malicious URL is 'https://ttraff.cc/pify?keyword=family+tv+series+episode+guide', which is likely used to redirect users to further malicious content.

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.cc/pify?keyword=family+tv+series+episode+guide
    • http://files.bfpartyrentals.com/uploads/1/3/1/6/131607075/jabenep-xapanasexanijuk.pdf
    • http://files.hunterdongardenguild.org/uploads/1/3/1/3/131380305/fapelawilodu_begixugexef_dafixofa.pdf
    • http://files.thecoreschool.org/uploads/1/3/0/7/130738657/2438740.pdf
    • http://files.baptistegerbier.com/uploads/1/3/1/1/131163859/rojuserota-fitemujan-govapulogopu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9472/8103/files/los_grandes_economistas.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/83295521300.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/zodinukafo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/22115891393.pdf
    • https://cdn.shopify.com/s/files/1/0438/8667/4088/files/credit_note_format_in.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/xowinasijamogewisuvok.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/31676297376.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/72496710487.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_off00007172.bin
443a312d1793a0cfd1e8a27942c47777bf97746bce94ae8dd572b1108be334aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7172 5396 bytes
font_01_sfnt_off000083c3.bin
fe2f8048a506cfbd23be6f8a0e2a0b798d0d97afe0f65dfde51d60a4201d2e05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83C3 9980 bytes

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