Malicious PDF — malware analysis report

Static analysis result for SHA-256 200c6eef35dc803d…

MALICIOUS

PDF

66.8 KB Created: 2020-08-18 17:21:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6125d8cf1c345962ed588ad26bdeae9 SHA-1: 102b526b62cafb05da36eba4ac17eb770144f2d4 SHA-256: 200c6eef35dc803d276a76073fb4be0de690bf0fb872116c5b0ea1c4d0ab2782
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, one of which leads to a Shopify domain. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to a potentially malicious site disguised as movie-related 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.ru/pify?keyword=a+padam+tamil+movie
    • http://files.vmplf.com/uploads/1/3/1/6/131606818/aef02d7.pdf
    • http://files.globalexplorertravel.com/uploads/1/3/0/7/130775071/mapigubiwevimoz.pdf
    • http://files.triciavanoostveen.com/uploads/1/3/0/8/130814783/kivewivuki_fivomubujewemes.pdf
    • http://files.novacheer.org/uploads/1/3/1/4/131483138/5706089.pdf
    • http://files.whimsyoaklamanchas.com/uploads/1/3/2/8/132814967/mikevupula.pdf
    • https://cdn.shopify.com/s/files/1/0432/5143/3627/files/motley_fool_investment_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/15322209439.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/95035420881.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/mathematical_physics_by_ab_gupta.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/ruviwojuvagebed.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/43727596049.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/74993422059.pdf
    • https://cdn.shopify.com/s/files/1/0439/1672/2344/files/52486253679.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdf
    • https://cdn.shopify.com/s/files/1/0434/3188/6998/files/87243966673.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8701/files/giredowegonejinafo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/87877814590.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a662.bin
add60bfa850210a0e902bb32119c7e9cd71f4d9ced370cdded26422e1c587ccf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA662 4560 bytes
font_01_sfnt_off0000b5eb.bin
92f1b471be103e5d1ecfd906d5999f193f54cf7d33eddbcfd64d49f9f35582d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5EB 10636 bytes
font_02_sfnt_off0000da63.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA63 16164 bytes
font_03_sfnt_off0000ef78.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF78 4324 bytes

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