Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd134f02bf5a08c…

MALICIOUS

PDF

40.7 KB Created: 2020-08-25 02:00:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c4dbea061dacb6922762a40cdb04b66 SHA-1: 06cfd1b03954d02f0632970a0fac49eabd28f907 SHA-256: 3cd134f02bf5a08caf1ba13034e88e423768b8907e96784254b2afe898c7006e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=iala+buoyage+lights+at+sea+apk'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the document may be part of a larger scheme to generate traffic or distribute content via numerous links, with 'https://cdn.shopify.com/s/files/1/0434/0567/2597/files/critical_thinking_activities_for_middle_school.pdf' being one of the many linked PDFs.

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=iala+buoyage+lights+at+sea+apk
    • http://files.tynksgemstonedesigns.com/uploads/1/3/2/7/132740415/7381d2f1749d4.pdf
    • http://files.chantolaspinall.com/uploads/1/3/0/7/130775551/lulusap-sonirap.pdf
    • http://files.classyhippieteaco.com/uploads/1/3/1/4/131452997/xopolorojediz.pdf
    • http://files.zakariyakhunji.com/uploads/1/3/1/6/131606331/5729441.pdf
    • http://files.stcolmcillesjns.com/uploads/1/3/1/4/131437725/fakewuwud.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/critical_thinking_activities_for_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/58376978350.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/97933399539.pdf
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/xokiwatiwetobufolevu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/3265682087.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83300066175.pdf
    • https://cdn.shopify.com/s/files/1/0446/7795/5747/files/a_la_carte_breakfast_menu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/49191905325.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9487/files/96102478710.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/
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006001.bin
06c97521bf146b6293bf106c5cafc7de8895782af809e213d44a64fdaca4ddb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 5228 bytes
font_01_sfnt_off000071c9.bin
5f92092ff27e7da311982c935c9dbb95ed8e3fff641e929c7d0bd453911e213f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C9 10724 bytes

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