Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b1c00664eda0d86…

MALICIOUS

PDF

47.4 KB Created: 2020-08-04 17:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5614e04196d1159c2553accc2c81eb3a SHA-1: 67b7125e2283a4693b07b87e82bd961c0b73fa54 SHA-256: 3b1c00664eda0d86d6e84ab789f6627b18316190c8ba10e437644a5688ca6288
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Can t stop the feeling sheet music pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further stages of the attack.

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=can+t+stop+the+feeling+sheet+music+pdf
    • http://files.gatetocommunicate.com/uploads/1/3/0/7/130739684/04dc5d4848884.pdf
    • http://files.demobydustin.com/uploads/1/3/0/8/130814754/12bf3ba100.pdf
    • http://files.hopevineyardowosso.com/uploads/1/3/1/6/131637056/bamesafudot_zinevu_wejofotumixozux.pdf
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/filomifudazizo.pdf
    • https://cdn.shopify.com/s/files/1/0438/6576/8096/files/muvaxopabisezulutiwamuba.pdf
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/mazizusewidufazose.pdf
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/datafidejorirolitexewur.pdf
    • https://cdn.shopify.com/s/files/1/0440/8688/6552/files/68984382167.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/github_pull_most_recent.pdf
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/wild_animal_word_search.pdf
    • https://cdn.shopify.com/s/files/1/0433/8407/8503/files/canon_90d_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/88361283087.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/ranutexu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/d_d_storm_king_s_thunder.pdf
    • https://cdn.shopify.com/s/files/1/0431/8203/1007/files/nofukubozisuwiti.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_off00007bed.bin
b9f8a6075b06fa2cb643c3ac7d0673d175f5fbff7b5afce0c43d4493940a109a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BED 5376 bytes
font_01_sfnt_off00008e18.bin
7d00a22219ff76831c0a7460856251708cd33236aee83721abae5220011c3033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E18 10120 bytes

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