Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33a5e7cf684ede8…

MALICIOUS

PDF

45.0 KB Created: 2020-08-17 00:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abebb5c6726037814172e78bab4d2701 SHA-1: 56756f1d2ae67f0a9d06695c58966765000770f3 SHA-256: d33a5e7cf684ede871beb78206a0510c13f7253955fdd2d92d9074bb7e3dc9b0
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.cc/pify?keyword=shazam+movie+soundtrack' is identified as a malicious redirector, likely leading to a phishing or malware site. The document body, though heavily obfuscated, contains this URL and other links pointing to Shopify domains, which are likely part of a link farm to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=shazam+movie+soundtrack In PDF document text
    • http://files.osteostrongtriad.com/uploads/1/3/0/9/130969545/dobedovufitawa-lusuv-lukovuf.pdfIn PDF document text
    • http://files.kcgtransport.com/uploads/1/3/1/4/131453665/tabekonuwoje.pdfIn PDF document text
    • http://tijexum.scsualumnibandassociation.com/uploads/1/3/0/7/130775181/816605c5f4d7383.pdfIn PDF document text
    • http://files.purrfectfriendsforadoption.org/uploads/1/3/1/8/131856271/butugutonevero_likexuzorulu_kulopa_podunageto.pdfIn PDF document text
    • http://files.britishamericanpublishing.com/uploads/1/3/1/6/131606619/e83a9eb71005536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6566/files/wake_up_little_susie_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30812088679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/12653040575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4607/6565/files/pidenezigutiforuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/lojutebizedebiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5092/5223/files/biochemistry_mcq_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/sosonefituwadezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/zosesilop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7571/4723/files/3821792355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/mathematical_induction_divisibility_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8554/4089/files/approximation_algorithms_for_np_hard_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/wubulapuk.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006520.bin
2ae5d6f6a290626444f22de75b8a6cfaa89ba0b57092c92c48bcbaffab595c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6520 5304 bytes
font_01_sfnt_off0000770a.bin
0cbb16703a16cc81ba20d5deef681d70879a5ad4e4d97b8feba0d52ec9d1e815		 pdf-font-stream PDF embedded font (sfnt) at offset 0x770A 9980 bytes
font_02_sfnt_off0000992a.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x992A 4324 bytes

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