Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f60cd3a0e7a0987…

MALICIOUS

PDF

53.2 KB Created: 2020-08-31 03:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5fda51fc0b81f4f14e2fffbf3706db0 SHA-1: f69d188363a65e4b46a479935147d756d7369cd4 SHA-256: 1f60cd3a0e7a098754c79b33cee3ab3ba2b4193cc4747d738a9b5c1c0d760c39
150 Risk Score

Malware Insights

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

The PDF contains a link to `https://ttraff.com/wix?keyword=snagit+software+key`, which is identified as a malicious redirector. The document body and embedded links suggest a lure related to software, likely aiming to trick the user into clicking the malicious link. The presence of numerous other PDF links, while some are confirmed benign, indicates a link farm strategy 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.com/wix?keyword=snagit+software+key
    • https://static.usrfiles.com/ugd/55cc32_014859ffd5d442de9cefb0d75cd75ed4.pdf
    • https://static.usrfiles.com/ugd/c8a981_b653a6417f94451290fe822121e60876.pdf
    • https://static.usrfiles.com/ugd/df4650_fdfa4039868440fe96b8c735262b1bcf.pdf
    • https://static.usrfiles.com/ugd/eb5a6a_8adcc22d923948f1be61e0b3aee6e3e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_8afe13fc864541279414b3f8f116622f.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34007792176.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99781003244.pdf
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/muxegegibijipag.pdf
    • https://cdn.shopify.com/s/files/1/0461/8639/7849/files/62894030471.pdf
    • https://static.usrfiles.com/ugd/61804c_237dc1da91fa491a9d27f00af1334cd6.pdf
    • https://static.usrfiles.com/ugd/f80014_0e793ff8d5cf4737a5f8bfe20b72841e.pdf
    • https://static.usrfiles.com/ugd/12745a_a6adabae669a4091a5bf0f5c85721da6.pdf
    • https://static.usrfiles.com/ugd/b8c837_06efe4f0bbb04f42b1092f5200572a6b.pdf
    • https://static.usrfiles.com/ugd/36f25b_7d259134eb034f65a1e39d53a8ad57e6.pdf
    • https://static.usrfiles.com/ugd/6846fe_970419713a1a41f983210bd0d9778bb8.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_off0000841a.bin
e7281331dd15750d1dba844129f86d2e6ec9c8275bec53839031b269875d4987		 pdf-font-stream PDF embedded font (sfnt) at offset 0x841A 5264 bytes
font_01_sfnt_off00009628.bin
d54f0edd293ace335a357832fd46e824bd13588071650f0f0a0f45e3cd021ba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9628 17968 bytes

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