Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc30970635eb2da…

MALICIOUS

PDF

71.1 KB Created: 2020-08-22 16:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae8fdfa583358072ea246d7242c66b00 SHA-1: c5d2b606bf261c455c4ef1d9a21761b282efb48a SHA-256: 3bc30970635eb2da1e8155cc6c6976d59ad01814a95895a5addc8cbc2d2a99f8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=anne+of+green+gables+pdf, which is part of a network of links designed to lure users to malicious content. The document body contains garbled text but also includes the malicious URL, reinforcing its purpose as a lure.

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.ru/pify?keyword=anne+of+green+gables+pdf
    • http://files.opmetoc.com/uploads/1/3/2/8/132814086/zulotimadebiga.pdf
    • http://files.morganofriverton.com/uploads/1/3/0/8/130874010/dilususatoku.pdf
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/bayesian_linear_regression.pdf
    • https://cdn.shopify.com/s/files/1/0437/9734/8514/files/asma_pdpi.pdf
    • https://cdn.shopify.com/s/files/1/0449/3407/0440/files/bloons_td_5_mod_unlimited_money.pdf
    • https://cdn.shopify.com/s/files/1/0431/3514/0007/files/14044020201.pdf
    • https://cdn.shopify.com/s/files/1/0431/6338/6017/files/62839458555.pdf
    • https://cdn.shopify.com/s/files/1/0440/8056/2326/files/24811223954.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/xefexilu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/poverty_alleviation_programmes_in_karnataka.pdf
    • https://cdn.shopify.com/s/files/1/0435/7062/6723/files/tumusofixugulidozirenose.pdf
    • https://cdn.shopify.com/s/files/1/0434/0930/9848/files/51633048051.pdf
    • https://cdn.shopify.com/s/files/1/0437/9312/1442/files/pukarapadokagawelogis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc60.bin
79d3f1c7b1bafa68553b6a2d96fe9423a4b3875e8f646631ac9c5a4accb50d7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC60 8744 bytes
font_01_sfnt_off0000d97a.bin
a632dbc080275e8a7893d44ed947c46b47d47119c92e6d1716aef7f978d7002c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD97A 5336 bytes
font_02_sfnt_off0000eba9.bin
8d57cb64cc50ef6736e10b863f5a9bb99be0e2694920e10d8757346c323ffb8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA9 10524 bytes

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