Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97e54564f2396c1…

MALICIOUS

PDF

46.8 KB Created: 2020-07-25 03:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f579b1635ad9496bc5999fd2aeeccd6 SHA-1: 610e380ef6a35e6316c044babe0f414a6da65f38 SHA-256: f97e54564f2396c1d88281fd236644ae32f9ae303e1e1f79fce67226ff5dcfb5
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Twist of Fate season 4'. The presence of a malicious redirector link indicates an attempt to lead the user to a compromised or malicious site.

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/pify?keyword=twist+of+fate+season+4
    • http://files.lanzaroteboathotel.com/uploads/1/3/1/3/131397927/6b7afc8e.pdf
    • http://files.ohanahomeschool.org/uploads/1/3/0/8/130874141/mapotibedixirume.pdf
    • http://files.sportsmanstandardpoodles.com/uploads/1/3/2/8/132814996/bbabbd870034d0e.pdf
    • http://files.somekindofsimple.com/uploads/1/3/0/7/130739509/jeputejo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/71543185977.pdf
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/refomutonuganab.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/tuxupivaripilafetizuwux.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/rizewutututaju.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/83798990173.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/17329864826.pdf
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/fazimobevafazuwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/85977689923.pdf
    • https://cdn.shopify.com/s/files/1/0435/1583/8618/files/29810578825.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/13524619491.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/fewepit.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_off00007e92.bin
50a500bddfce40ea177999d9e0549c4103a6c9d71f3f18149ab4d6955a4e318b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E92 4548 bytes
font_01_sfnt_off00008e26.bin
e3157f76eb953488426a507301b65b014d54986f49f2ebac66e7a0627bf6900a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E26 9372 bytes

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