Malicious PDF — malware analysis report

Static analysis result for SHA-256 60c08a8495e2b622…

MALICIOUS

PDF

42.1 KB Created: 2020-08-27 21:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b8d50807ef40bedcdd6a24ce031c5ce SHA-1: e833c55efdb06fda1a13c5ca3aaeeca19201f87d SHA-256: 60c08a8495e2b6228e5ca6d77d6d994bb9b802a1ccbf5287f69f659a62a9c07b
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=paypal+money+adder+2017+no+human+ver', is flagged as a malicious redirector. The document body also contains this URL and other PDF links, suggesting a link farm or redirection tactic. The ML classifier strongly indicated maliciousness, supporting the attack pattern of luring users to malicious sites.

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.com/pify?keyword=paypal+money+adder+2017+no+human+ver
    • http://mugowazi.betreatedwell.com/uploads/1/3/2/7/132740748/4910032.pdf
    • http://ravedasor.edistoclemsonclub.com/uploads/1/3/0/7/130775997/noximokopevow_zexuv.pdf
    • http://files.lynnespaintings.com/uploads/1/3/1/6/131637150/9607447.pdf
    • http://files.racheltepfercopeland.com/uploads/1/3/0/7/130739598/535ecdee6aa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0461/9658/8695/files/atividade_sobre_adjetivo_biforme_e_uniforme.pdf
    • https://cdn.shopify.com/s/files/1/0430/6557/3537/files/46939593633.pdf
    • https://cdn.shopify.com/s/files/1/0433/4331/5102/files/6251987731.pdf
    • https://cdn.shopify.com/s/files/1/0429/2221/3542/files/somuwesagawuxemewupiro.pdf
    • https://cdn.shopify.com/s/files/1/0430/1409/5001/files/adizes_corporate_lifecycle.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdf
    • https://cdn.shopify.com/s/files/1/0431/6610/5759/files/lil_wayne_mirrors_download.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_off00006549.bin
0a4fa708ac554722002dff6b393c86941c6c4000aeb690c40ad0f5e73cc28eff
pdf-font-stream PDF embedded font (sfnt) at offset 0x6549 5588 bytes
font_01_sfnt_off00007831.bin
bf749c95f7037a1758a8ff22a3f459658839aecc0d04e6b04b1a41e4ca18c702
pdf-font-stream PDF embedded font (sfnt) at offset 0x7831 10328 bytes