Malicious PDF — malware analysis report

Static analysis result for SHA-256 466df2edd6a6554e…

MALICIOUS

PDF

109.6 KB Created: 2020-08-06 17:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66af51c29720ef1cf90c00d944eead16 SHA-1: 7acd4e99ca68bf00be49dad547eb6a76722ae1ff SHA-256: 466df2edd6a6554e0636b6988bcdb0a0d9962eb9acd37429eff338100dac4c2b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. The presence of numerous external links, many pointing to benign Shopify domains, suggests a link farm SEO technique to obscure the malicious redirector. 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=ancient+greek+and+roman+architecture+pdf
    • http://files.lostlakefarmllc.com/uploads/1/3/2/6/132695574/vitum.pdf
    • http://files.sweetashoneyvinylcreations.com/uploads/1/3/1/6/131606343/4750951.pdf
    • http://files.bishopgradykofc.org/uploads/1/3/0/7/130739871/sukalinowaxefibo.pdf
    • http://files.thecyberblock.com/uploads/1/3/0/9/130969166/6223604a.pdf
    • http://files.benedictnnolim.com/uploads/1/3/0/8/130874026/6207320097.pdf
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/japanese_numbers_hiragana.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/88242996205.pdf
    • https://cdn.shopify.com/s/files/1/0430/5770/9210/files/book_cafe_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0430/6855/5415/files/lesekajolabika.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nudukesobiji.pdf
    • https://cdn.shopify.com/s/files/1/0429/4692/0615/files/bukizudejelawoxoraleze.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/sotukorajiwiladu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/69577643683.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/93757408639.pdf
    • https://cdn.shopify.com/s/files/1/0435/3838/3007/files/37544786026.pdf
    • https://cdn.shopify.com/s/files/1/0429/5432/6179/files/kefufesapupagumanurixi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6666/1800/files/56816645420.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98223768302.pdf
    • https://cdn.shopify.com/s/files/1/0432/3187/1139/files/english_phonetics_and_phonology_test.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_off00016598.bin
263921b77d2b78e07aeccb9c5eff804f261cbeb84f399a166713514b782f4e43
pdf-font-stream PDF embedded font (sfnt) at offset 0x16598 5292 bytes
font_01_sfnt_off00017768.bin
08fbbd45a78d11f4f57b0136ea5dea25f4ced379bdc7be2ed626e21eea8cef8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x17768 10144 bytes
font_02_sfnt_off00019a4b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x19A4B 4324 bytes