Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ad48fe4f4bc784…

MALICIOUS

PDF

41.2 KB Created: 2020-08-21 02:05:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47793abafdc86bdaa1120cd759218051 SHA-1: ab513a7a7831d54ab2a8ef8b437ae8fda12d58f9 SHA-256: b1ad48fe4f4bc784f3541f6394daf990ac3cd47192c9aef62ea835b82d2c3d5c
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains references to a game and the URLs suggest a link farm designed to attract traffic. The primary intent appears to be directing users to malicious or scam-related content through these embedded links.

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=pokemon+blazed+glazed+game
    • http://files.stedbigrednation.com/uploads/1/3/1/3/131398308/4163145.pdf
    • http://files.wesleyantheology.com/uploads/1/3/0/7/130775853/dosoxewokitizi-gosolibonef-dabej.pdf
    • http://files.bjinteriorarchitect.com/uploads/1/3/2/6/132682882/mebedimal.pdf
    • http://files.newhavenfirebirds.com/uploads/1/3/2/6/132696171/renekare_wetejumo_jukew.pdf
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/tonanexedafeseruwewezevaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/xevakepome.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
    • https://cdn.shopify.com/s/files/1/0434/5833/0786/files/53771394255.pdf
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/newogupakevet.pdf
    • https://cdn.shopify.com/s/files/1/0429/5422/7871/files/89129462540.pdf
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/dixesux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fokadexowigexavutezirero.pdf
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/79646545335.pdf
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/google_screensaver_images.pdf
    • https://cdn.shopify.com/s/files/1/0432/9563/7659/files/33153798117.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/wubepijofajizul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40035930655.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_off00006085.bin
bb07e80c0d04f7bf0c4ca9f496df623f9bc1509a2ab85e72f150dcb598959f27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6085 5128 bytes
font_01_sfnt_off000071ea.bin
0fa9935cb0888816337c6ed93b500baa4c55bcd09eb80076f3720686dab933dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EA 10736 bytes

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