Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d02a1c70f604914…

MALICIOUS

PDF

45.1 KB Created: 2020-08-03 23:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40164455b6f0703054c74fe64c1316dc SHA-1: fd764ae8afde593a1f8b34f067cefa24c7d68c64 SHA-256: 3d02a1c70f604914ddaf0afd4cc475307b73a0fee145280346a074aa75422923
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=linguistic+metaphor+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious content. The presence of numerous external links, many hosted on Shopify, points towards a link farm or a method to obscure the final malicious destination.

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=linguistic+metaphor+pdf
    • http://files.russianinscotland.com/uploads/1/3/1/4/131406717/bafapubeliposes.pdf
    • http://files.flygroundera.com/uploads/1/3/1/4/131438067/wuzopefoloxexetew.pdf
    • http://files.fullspectrumbirthdoula.com/uploads/1/3/1/3/131378776/4872692.pdf
    • https://cdn.shopify.com/s/files/1/0430/9096/8729/files/88341476621.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/mijokazobefesirijewugazi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4956/5853/files/zerker_pure_guide_osrs.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/gagenodojekodixevuzikif.pdf
    • https://cdn.shopify.com/s/files/1/0440/8085/7253/files/wotlk_holy_paladin.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/24936330463.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/kuvutarapozasemogo.pdf
    • https://cdn.shopify.com/s/files/1/0437/8099/7269/files/10471872013.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/305869957.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/86150198830.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_off00006ff3.bin
30b1e88b712c8322b831ee19986e4adf4ed4cc2f0c424a837e4382839a9aaa62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF3 5480 bytes
font_01_sfnt_off00008277.bin
0b75ebb83dad598b70de00f0623e5d300e17cc6e7cbb654e0191b21869eff698		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8277 10932 bytes

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