Malicious PDF — malware analysis report

Static analysis result for SHA-256 e324cb49d1f200f5…

MALICIOUS

PDF

45.9 KB Created: 2020-08-02 13:24:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 636db1b618d71d8a8dd94deeb1148dd2 SHA-1: 69a67502447cd53112be6db41ac05e23f7e497e1 SHA-256: e324cb49d1f200f5aa96328c7aab8f8d9e92584a36d764c0a44d6199ca4f58df
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=fallout3+ps3+walkthrough'. The document body, though heavily obfuscated, also contains this URL and references to other PDF files hosted on Shopify. This indicates a likely attempt to lure users to malicious content through a link farm strategy.

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.com/pify?keyword=fallout3+ps3+walkthrough
    • http://files.stbrigidstaugustinepartnership.org/uploads/1/3/1/4/131437889/lajarodusipa.pdf
    • http://files.vincekral.com/uploads/1/3/2/7/132740241/9909373.pdf
    • http://files.soul-sunshine.com/uploads/1/3/1/3/131380618/5416459.pdf
    • http://files.thewomenslockerroomfoundation.org/uploads/1/3/0/7/130738806/1329716.pdf
    • https://cdn.shopify.com/s/files/1/0431/6879/2732/files/wigelesobovez.pdf
    • https://cdn.shopify.com/s/files/1/0432/2413/7890/files/38251754168.pdf
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/85354143824.pdf
    • https://cdn.shopify.com/s/files/1/0434/2258/0886/files/58259514062.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/42493170823.pdf
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/jeppesen_airframe_textbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/29820518266.pdf
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/missoula_weather_15_day.pdf
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/reflected_in_you_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1167/files/keruwawaxogasitineloxal.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_off000074db.bin
38a8d4fec66b4fb6f7a0b7b4799a6a097a4c96e6ff9aca741087e70041365ac1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74DB 5356 bytes
font_01_sfnt_off00008725.bin
2bdb98a3b8b2a63048dcfcadc59e361d93321f277e8df86aa9940ffa9ca50de6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8725 10684 bytes

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