Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3c53c950da0574c…

MALICIOUS

PDF

33.2 KB Created: 2020-08-21 03:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8780c45f60285d79c31891849be9fd37 SHA-1: 5c9da7f1951a6eb7fdc4f426408c22c115a5ee1c SHA-256: f3c53c950da0574c9a5bb61e7d267fdc7bac92224c1e31efafc8bc89eab81bba
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body appears to be corrupted or heavily encoded, but the presence of the 'burnout 3 takedown xbox 360' keyword and the redirector URL suggest a lure to a potentially malicious site.

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.com/pify?keyword=burnout+3+takedown+xbox+360
    • http://files.toymigos.com/uploads/1/3/1/8/131856381/61b8c1a.pdf
    • http://files.sabrinasuniqueboutique.com/uploads/1/3/1/4/131453193/aec1f2d0a6139.pdf
    • http://files.shopfinelines.net/uploads/1/3/0/7/130740112/264cf09e50.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/58050032928.pdf
    • https://cdn.shopify.com/s/files/1/0434/1612/5590/files/yoshi_s_story_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/6404/1365/files/antropologia_aplicada_roger_bastide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0301/8392/files/dativafunakejozidowat.pdf
    • https://cdn.shopify.com/s/files/1/0433/1261/1481/files/backyard_aquaponics_magazine_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/5658/5114/files/jirimeveseke.pdf
    • https://cdn.shopify.com/s/files/1/0434/1822/2753/files/addiction_recovery_group_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/zisomibimeze.pdf
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/31925370578.pdf
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/31976246928.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/93509762903.pdf
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/kexedinasugarukaloworim.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_off00004430.bin
d5af8d362d8e65447dfe53cf6fd69672be5fe4702e79f020ad2f4217eceddaa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4430 5484 bytes
font_01_sfnt_off00005703.bin
d4dfabe74ae2f1535e265a3ce5fb22de638955a2c163db06a5a5b0e74d580d49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5703 9928 bytes

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