Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a04cac6d520b270…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 10:16:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc704c2be58ff042aabcc73149bb2a47 SHA-1: 0cc9cf6c7bc3740a43877c09bec9e4d8e8f58484 SHA-256: 4a04cac6d520b2708b524ee005378a91fc04f320fc5b61d80e39183c38efb613
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though partially corrupted, contains the same URL and a lure related to 'Destiny 2 masterwork weapons'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on shopify.com, likely intended to obscure the malicious destination.

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.cc/pify?keyword=destiny+2+masterwork+weapons+guide
    • http://files.terratravelers.com/uploads/1/3/1/4/131409009/1302327.pdf
    • http://files.powerandhealing.com/uploads/1/3/1/4/131406663/c6a01.pdf
    • http://files.theworkstrainingcompany.ca/uploads/1/3/0/8/130814205/nonixuw.pdf
    • https://cdn.shopify.com/s/files/1/0441/3512/1048/files/csgo_video_settings.pdf
    • https://cdn.shopify.com/s/files/1/0434/3608/1308/files/paslode_framing_nailer_parts.pdf
    • https://cdn.shopify.com/s/files/1/0437/5586/4215/files/23453633110.pdf
    • https://cdn.shopify.com/s/files/1/0431/0020/9319/files/diy_paper_bow_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8028/5348/files/small_size_reader_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/install_opencv_ubuntu.pdf
    • https://cdn.shopify.com/s/files/1/0439/4038/0840/files/beginner_guitar_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/7874/6261/files/xanafemaxugunuzipo.pdf
    • https://cdn.shopify.com/s/files/1/0461/9848/9246/files/dosamevefagun.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/hosts_file_windows.pdf
    • https://cdn.shopify.com/s/files/1/0431/2770/1665/files/47123142936.pdf
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/lipofapefe.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_off00006711.bin
9699c0c5a043088c190c2303927730d9b3916be601b9a89688d955d461392de6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6711 5636 bytes
font_01_sfnt_off00007a43.bin
ded289e0724bead1b4031c140077f7cf159129475df5449fd7687ee9b57c7c13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A43 10112 bytes

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