Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e8ebafb0699ba03…

MALICIOUS

PDF

41.0 KB Created: 2020-08-18 19:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe7f192028b978faf3f30a720e06aa20 SHA-1: 2627bbe39236fd36fc2d8bf59bd6d330d8b3bf18 SHA-256: 6e8ebafb0699ba0325ab41445b9cb4199e01509d7aa7ce5868da5c087554c691
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'free marketing plan template', aligning with phishing tactics. The presence of a link farm and a malicious redirector indicates an attempt to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=free+marketing+plan+template+for+small+business
    • http://mogofe.dragonfly-els.org/uploads/1/3/0/7/130776031/limalabo_movamaw_kitanuxujiz_viwijixafize.pdf
    • http://damerelag.sheppardinternational.net/uploads/1/3/0/8/130874431/72dbaa59.pdf
    • http://files.gastroenterologist.london/uploads/1/3/0/9/130969322/sarapagekefilig-zodagowigo-vokiremin.pdf
    • http://files.morningstar-arts.com/uploads/1/3/1/4/131437018/a32dfb0f38f792.pdf
    • http://files.agealive.org/uploads/1/3/0/7/130739892/6430228.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/how_to_convert_to_word_adobe_pro.pdf
    • https://cdn.shopify.com/s/files/1/0438/5413/5456/files/tisuvugujikefaxow.pdf
    • https://cdn.shopify.com/s/files/1/0440/6562/0118/files/82826280546.pdf
    • https://cdn.shopify.com/s/files/1/0448/2940/9442/files/the_count_of_monte_cristo_abridged_version.pdf
    • https://cdn.shopify.com/s/files/1/0440/1269/9798/files/40923772292.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/48155152556.pdf
    • https://cdn.shopify.com/s/files/1/0439/4565/6488/files/lakere.pdf
    • https://cdn.shopify.com/s/files/1/0438/2582/3904/files/gitlab_ci_artifacts_reports_junit.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/dimub.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_off00006262.bin
469516d9e597f386adc9098853510c86ab3a9d1c1d57f4976451e239d6e673ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6262 5380 bytes
font_01_sfnt_off00007498.bin
845ee6575cc3d97d5162d7794c75d5c76af975288f3bc3aa8c30a983274b9a54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7498 10096 bytes

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