Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d458bba95270998…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 15:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ef576e248b559d260d632c8aa1499b0b SHA-1: 6bcfa5357b5dc8b407bedf717b4f641c61838dec SHA-256: 6d458bba9527099819b24944f694ab45dbd0787fa84e84f6111b062fe15718d5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes the URL https://ttraff.cc/pify?keyword=beauty+and+the+beast+junior+script+pdf, which is flagged as malicious. This suggests the document's primary purpose is to redirect users to harmful content.

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=beauty+and+the+beast+junior+script+pdf
    • http://files.agirlandhergoldfish.com/uploads/1/3/0/7/130740323/f585d10d.pdf
    • http://files.nurismailphotography.com/uploads/1/3/0/7/130740033/zijifuserulorol.pdf
    • http://files.massagetherapyat.com/uploads/1/3/1/4/131406749/pejepireja_zajimobuvoga_xodala.pdf
    • http://files.johnbrittonbuttrill.com/uploads/1/3/1/3/131380175/2347135.pdf
    • http://files.betsabedelpilar.com/uploads/1/3/0/7/130775405/tetis_funadiniri_buguxuvejewox_lodewajiw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/uber_brand_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/judy_bartkowiak.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/13255509213.pdf
    • https://cdn.shopify.com/s/files/1/0452/2960/5024/files/19250455599.pdf
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/advanced_engineering_mathematics_by_rk_jain_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1234/1412/files/59512793692.pdf
    • https://cdn.shopify.com/s/files/1/0432/9996/3044/files/sexapejilukekisa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6876/5861/files/zewuretakogeluwilebaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/muzubi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8861/7378/files/xadarinebufalebamug.pdf
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/bejowopukol.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_off00006387.bin
21520433dbeb8a1e0e5d9ca2e5de288edcfd3a8fbcf22c57a3c68eaf5f800ae9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6387 5576 bytes
font_01_sfnt_off00007677.bin
f17fa6f527d76b99b0c8a04017e72d8efbddd11d1eca5e5551970d1bd25c1ffd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7677 10192 bytes

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