Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d05dbd51a361364…

MALICIOUS

PDF

51.4 KB Created: 2020-08-19 08:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a64f8a756045a443012f2b25ed726b1f SHA-1: 6e2e8a6025c7e12628b190e6f4de450b295526f9 SHA-256: 3d05dbd51a361364d8d91242b2471f73820065caaaee80faf365a8b132f0469a
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the text 'Minority report movie parents guide' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the link farm heuristic. The primary malicious IOC is the redirector URL.

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=minority+report+movie+parents+guide
    • http://files.allthingsartstudio.com/uploads/1/3/2/7/132741211/60b7555b38a0.pdf
    • http://marosiv.mspark.org/uploads/1/3/1/0/131070382/jeloxominekeziwokod.pdf
    • http://gigowox.justneighborsvt.org/uploads/1/3/1/8/131856877/volutovagoker_wesufufakoxun_kaxoxefoju_vakel.pdf
    • http://files.cashflow3.com/uploads/1/3/1/8/131871704/wikafemugixa.pdf
    • http://files.gobarespaonline.com/uploads/1/3/0/8/130814680/e948eb4a8f88983.pdf
    • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/jivibikin.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/raptor_hide_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8954/files/nupijovoziku.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/good_manufacturing_practice_guidelines_eu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/sales_promotion_techniques_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/0697/6422/files/riwakodu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0243/5483/files/lesanigigaju.pdf
    • https://cdn.shopify.com/s/files/1/0434/1176/7448/files/30411790574.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/436420179.pdf
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/7618074638.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/galibep.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_off00008aa0.bin
2be0d61f9dbb6719ca6f964308796ab316b54ae54da8625164602dfe73604827
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA0 5412 bytes
font_01_sfnt_off00009d05.bin
c1aa93248cfaef0c617bf6a655652b1b18fbd3329f6e2cc4cae06a7814568630
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D05 10332 bytes