Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19e78e6958fc77c…

MALICIOUS

PDF

34.9 KB Created: 2020-08-27 15:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09a08ca3a0dce4de4d2afb55793cb019 SHA-1: e96064b93e1f65a30dc25921012a1ef13e049677 SHA-256: d19e78e6958fc77c5dad33437a666b4ad7236a9c24672dbb974dbbff35ab07e5
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, designed to appear as legitimate downloads. One prominent link, https://ttraff.cc/pify?keyword=pokemon+xd+gale+of+darkness+rom+download, is identified as a malicious redirector, suggesting an attempt to lead users to malicious content or phishing sites. The document body, though heavily obfuscated, contains references to the game 'Pokemon XD Gale of Darkness' and the download keyword, reinforcing the lure.

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.cc/pify?keyword=pokemon+xd+gale+of+darkness+rom+download
    • http://gabifuzi.6224marketing.com/uploads/1/3/1/0/131069934/9954312.pdf
    • http://files.americascoresseattle.org/uploads/1/3/1/3/131379343/4a2d177d0d.pdf
    • http://ripovud.timsguitar.net/uploads/1/3/1/3/131378898/gamus-sedexopusomuzap.pdf
    • http://lixefeb.teresasthriftytreasures.com/uploads/1/3/1/4/131405927/1105c50baab62.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdf
    • https://cdn.shopify.com/s/files/1/0437/7772/0469/files/new_wanderers_stadium_johannesburg_weather_report_today.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/wood_carving_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/sharp_el-1197piii_instruction_manual.pdf
    • https://cdn.shopify.com/s/files/1/0460/1774/0967/files/81766898104.pdf
    • https://cdn.shopify.com/s/files/1/0435/4274/1143/files/87873010389.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/levod.pdf
    • https://cdn.shopify.com/s/files/1/0434/6354/0902/files/last_week_weather_report_in_sri_lanka.pdf
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/ruwidokegerojaki.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/derapagusu.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aeb.bin
fea5144a59f62981c22570a73e05402513ea01e2e2cf115f9a44193cdbb22d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEB 5452 bytes
font_01_sfnt_off00005d74.bin
37d86c449f2de4667235a23a0bc11109e0118e18ce83f0808fb7667a11de14f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D74 9636 bytes

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