Malicious PDF — malware analysis report

Static analysis result for SHA-256 e008d22dbe2cb536…

MALICIOUS

PDF

296.9 KB Created: 2020-08-20 00:14:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33b2cc991af5f7462c794e5506db9238 SHA-1: 7ce6ae28acabfd90fafbca7e1e0f23d0a5de4064 SHA-256: e008d22dbe2cb536a31a9e6b0be8d9298304e2648af1851c6c611de68b7bd9e3
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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=graves+guide+8.+13
    • http://files.noisebliss.com/uploads/1/3/1/8/131856852/cdaf80.pdf
    • http://rapodosi.180clothing.com/uploads/1/3/1/6/131606165/garimuvuku.pdf
    • https://cdn.shopify.com/s/files/1/0433/8742/0835/files/lewob.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/18249945730.pdf
    • https://cdn.shopify.com/s/files/1/0437/6536/6933/files/business_level_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/powerpoint_templates_free_2017_microsoft.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/36441853264.pdf
    • https://cdn.shopify.com/s/files/1/0431/3274/7927/files/datijuzaronobetebafonifiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2199/9008/files/admission_form_for_school_sample.pdf
    • https://cdn.shopify.com/s/files/1/0434/7651/7014/files/dezaramikurowafisatura.pdf
    • https://cdn.shopify.com/s/files/1/0428/4776/4636/files/3383612025.pdf
    • https://cdn.shopify.com/s/files/1/0428/4078/5062/files/hr_behavioural_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezaneseku.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/nowodavigazofedafaze.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_off00044d0d.bin
8b42d5e0d4301bacc3fbb5266bcd83dce75280f9f9f2fa44b3a8f79d45c7588c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44D0D 5496 bytes
font_01_sfnt_off00045fe1.bin
46fced83fad3d7d1ba0a9179adeb0928d954a594c6aacf42ef004f82891c7012		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45FE1 16896 bytes

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