Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce2cbdbcb005527…

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 00:23:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09e2e92350175e7020a20e8a1315d99a SHA-1: 248397df061a841b6cd6f61be98da29a81d93dd2 SHA-256: 0ce2cbdbcb0055270f6e31c8d40cafe0640b19c20dd73151e8b94a4c652f089a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary malicious URL identified is https://ttraff.com/pify?keyword=skip+beat+live+action, which is likely used to funnel victims to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=skip+beat+live+action
    • http://files.thebodyshop82633.com/uploads/1/3/1/8/131871704/lesetebaritogokemul.pdf
    • http://files.reallycassandraradio.com/uploads/1/3/1/6/131607158/nasun.pdf
    • http://files.turtlerecording.com/uploads/1/3/1/4/131437953/zalekosaz.pdf
    • http://files.dbardogs.com/uploads/1/3/1/4/131453127/sitadumera.pdf
    • http://files.flagstaffsnewhomesforsale.com/uploads/1/3/1/1/131163683/dakagupanam.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/2537/5125/files/mixowo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/91233081046.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/16655169887.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/tagisanemadexi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4731/3827/files/22000208971.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3403/files/mkv_to_mp4_converter.pdf
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/46904119941.pdf
    • https://cdn.shopify.com/s/files/1/0438/6557/1493/files/wutuzodot.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/85364847919.pdf
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/hit_die_dnd_5e.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006848.bin
7a9974c8e2ca45b8198e72c142a45c09c9744d0a6d2c03fdd354a6dcd2627b66
pdf-font-stream PDF embedded font (sfnt) at offset 0x6848 4808 bytes
font_01_sfnt_off000078a9.bin
131802d0fe80e766843c7c24e2c04d53414ef87ad74d1eebea04012e430b6752
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A9 10268 bytes
font_02_sfnt_off00009be2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BE2 4324 bytes