Malicious PDF — malware analysis report

Static analysis result for SHA-256 418a742645415d9b…

MALICIOUS

PDF

52.1 KB Created: 2020-09-07 22:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 939df2e8cbece214cf0974fb43c0e65c SHA-1: aa35ef4da1c745b02a875def2537c728a8c76c9d SHA-256: 418a742645415d9b2f9c81a8a39665760589eb84d56e4f03933b623babefc9bd
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 ttraff.club. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure for a "Puzzle and Dragons reroll guide". This indicates the primary goal is to redirect the user to a malicious site. The file also contains a large number of embedded links, characteristic of SEO spam or link farms, further supporting the malicious redirection intent.

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.club/wix?keyword=puzzle+and+dragons+reroll+guide
    • https://static.usrfiles.com/ugd/b8c837_9f72ec573f884ae893bda899ac3d085f.pdf
    • https://static.usrfiles.com/ugd/238140_a3a8d8192ff946bca5472b22109cf875.pdf
    • https://static.usrfiles.com/ugd/bbd3cf_e728576041ec47608eb80f4485632b02.pdf
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/35206569357.pdf
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/75648369853.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/autocad_2d_and_3d_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0437/8466/7287/files/3_star_hotel_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0443/9500/4070/files/aleister_crowley_tarot_deck.pdf
    • https://static.usrfiles.com/ugd/b8c837_bc04256f963040b3814888959deb3872.pdf
    • https://static.usrfiles.com/ugd/a86d68_2195931414554779af9fe8cb78411c1e.pdf
    • https://static.usrfiles.com/ugd/3de8a6_c0ac614f474b4dac840f10147b09a365.pdf
    • https://static.usrfiles.com/ugd/b8c837_8af60d5ed3234506aca823bb21f2a1f5.pdf
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/rocking_horse_nursery_audenshaw_ofsted_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/dijewebefam.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_off00008ed8.bin
7c1ff9384f1e7352db54e2ce591f8531134799e6e46d1a625f753ac676fc2089		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED8 5044 bytes
font_01_sfnt_off0000a014.bin
6daf344d362c283bf325cebc57f2840bb3168d6e9395fd1c72b4c68f48f470a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA014 10420 bytes

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