Malicious PDF — malware analysis report

Static analysis result for SHA-256 30130f43dcd46ce8…

MALICIOUS

PDF

41.1 KB Created: 2020-08-07 18:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f4fc1e3a081c3850e000a1063aecd38 SHA-1: b2c6dcd7f6088251f8e16301d6cab964e596d69f SHA-256: 30130f43dcd46ce8b2295765cf68b7be7672f650c21164ad182f91f3650f3e6a
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting the PDF's primary purpose is to redirect users to malicious infrastructure. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=always+remember+us+this+way+piano+sheet+music+free+pdf
    • http://tibek.fcband.org/uploads/1/3/1/1/131163635/33b952e02b.pdf
    • http://dogixi.oklahomagameused.com/uploads/1/3/1/3/131379732/wirivapiber-bofifewitomago.pdf
    • http://files.agiletwincities.org/uploads/1/3/1/4/131454316/45602750296.pdf
    • https://cdn.shopify.com/s/files/1/0434/8493/8402/files/blood_relation_reasoning_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/gotipapaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/firikogasomoxesugu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/64169225849.pdf
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/luxos.pdf
    • https://cdn.shopify.com/s/files/1/0428/4694/5436/files/84468548876.pdf
    • https://cdn.shopify.com/s/files/1/0437/1909/8523/files/44879169873.pdf
    • https://cdn.shopify.com/s/files/1/0435/2193/3466/files/41235224920.pdf
    • https://cdn.shopify.com/s/files/1/0434/5203/9328/files/lipetezirutadug.pdf
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/sevisijebezejejidogoreze.pdf
    • https://cdn.shopify.com/s/files/1/0429/5743/9129/files/python_tutorial_point_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0429/5737/3589/files/dunetapiri.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_off00005724.bin
dac9914e4657232494d38caa7dc9ce73a1677d9478d336bcbaf8581bd745dde4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5724 5716 bytes
font_01_sfnt_off00006a82.bin
930a71f49c4c0056f1598ac42a3bde767aca0caff55811c5fc1dace13f2d0667		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A82 14048 bytes

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