Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be2f9b285fd5b51…

MALICIOUS

PDF

42.1 KB Created: 2020-08-14 22:18:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73e376ebcead3c943e5d42ad764011ea SHA-1: fa0a350319bf586a9277fc834b3e9c0c9e71c749 SHA-256: 4be2f9b285fd5b5196e602f8e9950311673326328740f296b2a82b1f5cc62e75
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many pointing to Shopify domains, designed to appear as legitimate content but ultimately redirecting to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=internet+booster+app+free, which is flagged as a malicious redirector. This suggests a phishing or scam campaign aiming to lure users with a fake offer.

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.ru/pify?keyword=internet+booster+app+free
    • http://files.wymanpministries.com/uploads/1/3/0/9/130968950/bca3b7.pdf
    • http://voxor.philipestrada.org/uploads/1/3/2/8/132814930/mefumo_wazalor_sikaboloxi_zinurujew.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/desuruxafede.pdf
    • https://cdn.shopify.com/s/files/1/0437/6110/7105/files/maths_puzzle_questions_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/25859689901.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/dosakutafike.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/bofimovezumerivadab.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/fe_civil_review_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/lightning_thief_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/9028/7517/files/cervical_screening_australia.pdf
    • https://cdn.shopify.com/s/files/1/0437/3060/0090/files/system_analyst_responsibilities.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068fb.bin
76ce3239acec82fc8506a0c09a59eac778adbacd6317d2078c5f8d0ad36a5812		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68FB 4940 bytes
font_01_sfnt_off000079cf.bin
f4363b787ab8f6ca52426e7decfed2687d8edbe8106fe2fb62677148887f4b42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79CF 10048 bytes

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