Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2cbc9194462f948…

MALICIOUS

PDF

52.8 KB Created: 2020-08-04 14:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54880cea174d243a2476415ba373fe8a SHA-1: 85efcd65dbfc27c9a95df23bd755a5930a93ec14 SHA-256: b2cbc9194462f948faa3c91acacf80d8b8ed2536f54747bfa0fb9986f3599d99
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'cctv cable installation guide'. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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=cctv+cable+installation+guide+pdf
    • http://files.thedemeterfoundation.com/uploads/1/3/1/4/131483955/6126794.pdf
    • http://files.kathrynshriver.com/uploads/1/3/1/8/131871535/zajadov.pdf
    • http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0769/files/nebupug.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/51280968594.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/mass_effect_2_zaeed_dlc_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/9440/8352/files/33996429639.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/prescription_for_nutritional_healing.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/hacked_tower_defence_games.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/rizuzefizewenozomokitefe.pdf
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/wexipumiwamus.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/nidupat.pdf
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/rabadagute.pdf
    • https://cdn.shopify.com/s/files/1/0430/7668/1882/files/musenadefizeduk.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_off00009155.bin
f93ad6fef0166030e2bf3838cbc6e03eaec8d76d9ae93d01d2228e58155d3043		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9155 5332 bytes
font_01_sfnt_off0000a38d.bin
e3227a646ebd4d600f4ab226e867990d4243336ea76e6c89cd652b328d119b99		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA38D 10192 bytes

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