Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec6af68a64640585…

MALICIOUS

PDF

43.5 KB Created: 2020-08-27 16:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fbcadaf309964dc90d8d2a10c1493f8 SHA-1: 10a5f955acf3758562dd6cfe75a1872804595e80 SHA-256: ec6af68a6464058535b525a25f8abfd220f7cefc1a5b75c0b99cd5be27e37f2e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=principles+of+product+development+flow+pdf'. This indicates the document is designed to redirect users to potentially harmful content. The presence of a PDF link farm heuristic further supports the malicious intent, as it suggests an attempt to artificially inflate search engine rankings or distribute links to various resources, one of which is confirmed malicious. The document body contains obfuscated text and the malicious URL, reinforcing the attack pattern.

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=principles+of+product+development+flow+pdf
    • http://files.sharingfamilymemories.org/uploads/1/3/2/6/132695543/wavosupivag_gitem_najekuvowug_puregoxazonej.pdf
    • https://cdn.shopify.com/s/files/1/0437/2620/9175/files/cat_3406b_fuel_pump_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/8071/1325/files/sasenesozukud.pdf
    • https://cdn.shopify.com/s/files/1/0437/9131/9200/files/93846315983.pdf
    • https://cdn.shopify.com/s/files/1/0437/2994/4730/files/skull_base_anatomy.pdf
    • https://cdn.shopify.com/s/files/1/0438/2657/7565/files/jirig.pdf
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/add_watermark_to_software_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/81107427275.pdf
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/36281249571.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/swami_ayyappan_songs_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/sibumubotobit.pdf
    • https://cdn.shopify.com/s/files/1/0435/9657/8979/files/58262158797.pdf
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/24812321061.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_off00006d08.bin
3ca76f7f411f5ff11bbbc42707f79cb311f7b8b3bfdf25c2005843d0b56e16d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D08 5244 bytes
font_01_sfnt_off00007ed8.bin
d91c984466298a885fc53d4a2a142f60b784d2da8d20c0dd2155ba2ca0644740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED8 10072 bytes

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