Malicious PDF — malware analysis report

Static analysis result for SHA-256 5359c4a9acd13cd7…

MALICIOUS

PDF

47.0 KB Created: 2020-08-09 14:01:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80bb287edad2f393ae38ce375e69e9c2 SHA-1: ff91b328e60610b30ced384f811ec9ad39702656 SHA-256: 5359c4a9acd13cd73063aa48dfdf59d9b23ddf774157a079322841d5e874c35e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a link farm pointing to a known malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=boethius+consolation+of+philosophy+victor+watts+pdf. This suggests the document is designed to lure users to malicious content through a chain of redirects, likely for phishing or malware distribution.

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=boethius+consolation+of+philosophy+victor+watts+pdf
    • http://files.atp-pro.com/uploads/1/3/2/3/132303310/9501138.pdf
    • http://files.cinnamombakery.com/uploads/1/3/1/8/131856271/925126560e5bc4.pdf
    • http://files.irondan.net/uploads/1/3/1/3/131398066/tuxoronu_vupetegukulop_xebog_tibimuja.pdf
    • http://files.silviastitch.com/uploads/1/3/0/8/130874610/zijagufagitumajegeka.pdf
    • http://files.winslowfarrsr.org/uploads/1/3/1/3/131380480/3ddad052f.pdf
    • https://cdn.shopify.com/s/files/1/0434/9820/9446/files/bosch_logixx_7_washing_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/blue_book_of_grammar_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/65127629971.pdf
    • https://cdn.shopify.com/s/files/1/0439/4565/6488/files/80087398549.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/najokugatunira.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/zemorezageniriwa.pdf
    • https://cdn.shopify.com/s/files/1/0449/6615/0303/files/architecture_byzantine.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8613/files/spider_solitaire_mindjolt.pdf
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/44553846995.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/5010183410.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_off00007911.bin
8d0e1a416b90697f23cc8333cdc5dc0dad88118df1be612695ace068c7cd3292		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7911 5548 bytes
font_01_sfnt_off00008c15.bin
d2ad85c7eabb65b929f1c36741e4a3fae5b423a747a7fd5d57927b6f72df782d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C15 10200 bytes

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