Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6374f37969d08ee…

MALICIOUS

PDF

43.6 KB Created: 2020-08-21 07:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e806fab45150a4f32e8f5c6e29ef745 SHA-1: 9ff2e156785e0e10a20e78694cea374c58d64684 SHA-256: a6374f37969d08eedb17d8aa60a6cbe207dbc06ed6b9e014db1dee4d37b10bda
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=clash+of+clans+apk+day%25C4%25B1+para+hilesi'. The document body also contains this URL and other links, suggesting a link farm or SEO poisoning tactic. The primary intent appears to be luring users to a malicious site via a deceptive link related to game downloads.

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.ru/pify?keyword=clash+of+clans+apk+day%25C4%25B1+para+hilesi
    • http://files.yourfragrantgarden.com/uploads/1/3/1/4/131409309/tubujodinudagiwafove.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/snake_game_nokia_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/2603978181.pdf
    • https://cdn.shopify.com/s/files/1/0430/2913/5521/files/free_online_to_editable_word_converter_for_large_files.pdf
    • https://cdn.shopify.com/s/files/1/0440/5726/4280/files/85183807125.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/new_technology_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/biblical_meaning_of_faith.pdf
    • https://cdn.shopify.com/s/files/1/0432/9131/2288/files/chrome_browser_apk_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0428/3554/2182/files/81398694229.pdf
    • https://cdn.shopify.com/s/files/1/0431/4778/8450/files/jokipafezema.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/addition_worksheets_year_1_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0433/8135/8759/files/tunetorinabi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/discord_delete_channel.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_off00005d9f.bin
e0f25999ce20d540d2323a6bcbbfa6db0fd6951126e7a45293c84c394ba91e77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9F 5172 bytes
font_01_sfnt_off00006f2c.bin
97d56695643c5108b9c10ce5eb4d203ce3ee4b7df409e5cf81101b210510d8e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2C 9952 bytes
font_02_sfnt_off00009145.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9145 4324 bytes

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