Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d9e1c0409601ee8…

MALICIOUS

PDF

45.6 KB Created: 2020-08-04 14:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b5b8b1382184673b8d43f0aeb0086dd SHA-1: 0820a11d542de6440c6e20c15baf19c687fe0ec8 SHA-256: 7d9e1c0409601ee8931325b7686a260ab8f7fc4122a5cd061fc39148fd8c3457
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or redirection scheme. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=appareillage+schneider+odace+pdf'. The document body, though heavily obfuscated, contains text related to 'Appareillage schneider odace pdf', likely a lure to encourage clicks on the embedded malicious links.

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=appareillage+schneider+odace+pdf
    • http://madelat.hotmesshighvibes.com/uploads/1/3/1/1/131163590/3140257.pdf
    • http://files.boloker.com/uploads/1/3/0/8/130873718/lolugibevigas_wabikapezafasa_datogitotene_kolujibadosutik.pdf
    • http://files.inspiringrolejewelry.com/uploads/1/3/1/4/131453897/rutefev.pdf
    • http://files.jmr-art.com/uploads/1/3/0/9/130969801/ae380f.pdf
    • http://files.totsandco.org/uploads/1/3/0/8/130874066/gesobitodarakog-fetosi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/8779/7160/files/github_initial_commit.pdf
    • https://cdn.shopify.com/s/files/1/0432/3852/3047/files/wogakaxuxawurorokilen.pdf
    • https://cdn.shopify.com/s/files/1/0432/0880/2466/files/21627101840.pdf
    • https://cdn.shopify.com/s/files/1/0428/5949/5590/files/75079169549.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1070/files/mozome.pdf
    • https://cdn.shopify.com/s/files/1/0431/5768/4385/files/11835853414.pdf
    • https://cdn.shopify.com/s/files/1/0434/0593/4757/files/max_hp_5e.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/gadodotekisoxetem.pdf
    • https://cdn.shopify.com/s/files/1/0433/5996/1237/files/gomaragufumadadavi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6580/2903/files/72679440836.pdf
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/dmv_ca_release_of_liability.pdf
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/67870898694.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fb8.bin
2926fede43bdd333d4771a81a32771d491db381a80d84f789b45fe4d9942784b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB8 5408 bytes
font_01_sfnt_off00008216.bin
25f169c41e67bd951cf49668ae82a5edda86dac0f96672a7de74627645f9acd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8216 11336 bytes

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