Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22c611f03dfc5db…

MALICIOUS

PDF

54.2 KB Created: 2020-08-04 17:19:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a20536a7354e3b1f02fd383c7b716d2 SHA-1: c9f3dbfe28b1f37122478457c6b4bc9f8b173381 SHA-256: d22c611f03dfc5db975297d031b5d20b456a7404d22183c2fcfcd96f5d047334
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or social engineering attempt. The document body, though heavily obfuscated, contains the URL that leads to the malicious redirector, suggesting the intent is to lure the user to a compromised site. The presence of numerous PDF links, many pointing to Shopify domains, suggests a tactic to bypass detection or appear as legitimate content hosting.

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.ru/pify?keyword=automated+trading+strategies+using+c+and+ninjatrader+7+pdf
    • http://files.melodyjwang.com/uploads/1/3/1/4/131438058/7c13028d47.pdf
    • http://roputaxu.appledoreantiques.co.uk/uploads/1/3/1/3/131379730/e7264.pdf
    • http://files.missmatchmakerlive.com/uploads/1/3/0/8/130874231/7718408.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1727/files/moonlight_sonata_third_movement.pdf
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/knowing_god_packer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/mogafevoturexus.pdf
    • https://cdn.shopify.com/s/files/1/0437/9371/1265/files/musirozav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xatet.pdf
    • https://cdn.shopify.com/s/files/1/0429/1624/9767/files/68336753267.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/nahuales_mayas.pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5025/files/tekuxizadosiwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20931566490.pdf
    • https://cdn.shopify.com/s/files/1/0432/1565/0980/files/guzikaxisudasukawuziren.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
stream_006_off0000aae7.bin
2d8c2bc5240c0a5e9c4c0a2867024a15137f91cd840063f16ec4fbf8dd30c2a1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAAE7 19296 bytes
font_00_sfnt_off0000731a.bin
93c3848fc76123df9946d8cae8dd5c8d0387d3b0f5dc5a98fd551b3027a7e35a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x731A 5588 bytes
font_01_sfnt_off00008615.bin
40b1aa0b98d5706493d83314f00527fbea4632434f725b9ff70d3e878185856c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8615 10760 bytes

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