Malicious PDF — malware analysis report

Static analysis result for SHA-256 8af741d96afdc81e…

MALICIOUS

PDF

40.1 KB Created: 2020-08-22 02:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f1f6c1b71e5867515956c7ad35aacd3 SHA-1: 74cfbb9ac627c51bf9455100d6c512d73db017e3 SHA-256: 8af741d96afdc81e155b726f86d0e9769127d8d12393ab44ae587fd179626461
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, also contains the primary malicious URL. This suggests a phishing or scam attempt designed to redirect users to potentially harmful content.

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=polaris+performance+parts+canada
    • http://files.biomedlabs.org/uploads/1/3/0/8/130814124/tavagovoga.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8213/files/43447459973.pdf
    • https://cdn.shopify.com/s/files/1/0460/7423/2996/files/attendant_care_needs_form_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/request_letter_for_job_application.pdf
    • https://cdn.shopify.com/s/files/1/0430/6380/4058/files/lunajajadalumakodu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/vasesazow.pdf
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/79082592426.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/can_t_help_falling_in_love_piano_sheet_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/701215514.pdf
    • https://cdn.shopify.com/s/files/1/0448/5254/3649/files/minimal_html_template.pdf
    • https://cdn.shopify.com/s/files/1/0447/9365/9543/files/gugaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/97943647523.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_off00006026.bin
804e06e3ee8ef4651934fd757a5fa1f70c7eb975df635c0d348aad3fa557a263		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6026 5300 bytes
font_01_sfnt_off00007210.bin
f727066b79813a48181a210d90f482989b13792feca4c88a176301338067e237		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7210 9888 bytes

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