Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f196f33101a20b7…

MALICIOUS

PDF

42.3 KB Created: 2020-08-19 06:08:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 632505798b74fa6473a38ec90cbc50f9 SHA-1: a1e6ecf720dcf91f1ac221ada3aebfb14fb14f6b SHA-256: 9f196f33101a20b77b500b8c45d79d2ada58d12df27f83d6b338581dd6b052f3
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as information about physical therapy exercises. This redirector likely leads to a further malicious payload. The PDF also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning attempt to increase visibility of malicious content. 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=best+reformer+exercises+for+low+back+pain
    • http://xofuzo.supportingchampions.org/uploads/1/3/0/7/130776088/velulivu.pdf
    • http://files.lenarobinwrites.com/uploads/1/3/1/8/131871424/lojep_zakevibelidopa_sejigixe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/94495825322.pdf
    • https://cdn.shopify.com/s/files/1/0429/0628/8291/files/english_placement_test_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1398/files/nikon_d5200_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0428/7211/1260/files/introductory_circuit_analysis_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30547733638.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/10429708434.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9203/files/2313213030.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/mapa_mundi_ibge.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/dajamaporedixukutu.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_off00006664.bin
5ad77ef561e2900988811dee75d7306f9eebbc0fedaa18255523b6a010a4be0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6664 5576 bytes
font_01_sfnt_off00007958.bin
81609408620d01d9496eac87e63e9b8c86415d3da394c0b6333a86c4317fa6e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7958 10432 bytes

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