Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebee016de3fb5196…

MALICIOUS

PDF

146.6 KB Created: 2020-08-04 04:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8fecb40612d76d513a063290866d45b SHA-1: 57fe4314c0e3b49dab48a75d8a4bfc43445339c9 SHA-256: ebee016de3fb5196fe246f62547d489c372e9fdf513cc790f51c916b388f54ab
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to this malicious site. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body's content is not directly indicative of a specific scam type beyond the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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=ayatollah+khomeini+books+in+urdu+pdf
    • http://files.wood-honey.com/uploads/1/3/1/8/131856491/0aa80b1bed938.pdf
    • http://files.gwinnettcarpetpros.com/uploads/1/3/1/4/131438490/7551232.pdf
    • http://files.buyers-club-solar.com/uploads/1/3/0/8/130813643/woximometar.pdf
    • http://files.freereinequine.ca/uploads/1/3/1/0/131070051/6f4edd925d054ac.pdf
    • http://getota.cameliascandles.com/uploads/1/3/2/7/132740900/wokajukusax_muwotukafaku_movumenuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0402/6280/files/76482547839.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/deradopa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2240/1192/files/kefowerugisotaraxeraguki.pdf
    • https://cdn.shopify.com/s/files/1/0430/2916/8282/files/48099046164.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/duripijodupovegegilelomu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/counting_stars_downloads.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4602/files/pokufuw.pdf
    • https://cdn.shopify.com/s/files/1/0439/4654/1211/files/45315758624.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1762/files/68004261814.pdf
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/png_interlaced_what_does_that_mean.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
font_00_sfnt_off0001dbb1.bin
5691027748f685f700c303b2f1efc981aa88940225296ba1dea342e5e8a82625
pdf-font-stream PDF embedded font (sfnt) at offset 0x1DBB1 5576 bytes
font_01_sfnt_off0001ee79.bin
c17846c0cd090660e91f2efef192d46723e651fca7294e9bd8a4c930e3a0e500
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE79 11804 bytes
font_02_sfnt_off0002165b.bin
e8b74491114f6e2e73920de72a6a526feac29bb27270cb8e43430ab33c739ab3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2165B 21804 bytes