Malicious PDF — malware analysis report

Static analysis result for SHA-256 4baca5f561b0a92d…

MALICIOUS

PDF

43.6 KB Created: 2020-08-30 14:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0f6d6309246c7d625b46c43b479fdd0 SHA-1: 4031f01889ed21d5fe33b20077bbad401276603c SHA-256: 4baca5f561b0a92d79f0df3d1882303a0d96c13204e8d51a40252882ce1a7445
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector at ttraff.club. This indicates a phishing or scam attempt, likely to lead users to a compromised site or download further malware. The document body, though heavily obfuscated, contains the target URL and references to downloadable plans, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=planches+pour+pendule+a+telecharger
    • https://static.usrfiles.com/ugd/834936_b7f5eee653d34339b08dbd9ad69b045c.pdf
    • https://static.usrfiles.com/ugd/b8c837_d81f833b75114566a4bd516ed14344cd.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a08208f7fbd455ea3d34528689ae620.pdf
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/82053167973.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/wimujoluvanigoxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/jotirubapipigiguzisat.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/cities_skylines_xbox_one_beginner_s_guide.pdf
    • https://static.usrfiles.com/ugd/b8c837_89d332af4a29486188fe47c5a757534d.pdf
    • https://static.usrfiles.com/ugd/804ff6_e35fba1b85a8495aaea9a3559e668f38.pdf
    • https://static.usrfiles.com/ugd/c20ea7_b9caa63e513d43abb9829cdbdf6e1454.pdf
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/mutaveripatud.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/tezafimewapagefufamev.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/simifeworobisofogozuru.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_off00005fba.bin
13269afd62b914d3419134c4fcc77da8c27dd2534caa7f7612842b5f930b087c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBA 5336 bytes
font_01_sfnt_off000071c2.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 1800 bytes
font_02_sfnt_off00007a4f.bin
41145b6d1b3e93013fcf9c8b743ea532922b81134325def3de2fce6d1b851893		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4F 11716 bytes

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