Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b392bccea9297ae…

MALICIOUS

PDF

44.5 KB Created: 2020-08-19 18:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95521483b023a1b879acfc43aea2a2d6 SHA-1: 83b376aedea1e767ca97851ddfe8f31543b51de9 SHA-256: 8b392bccea9297ae25ffc44c5b78f18e4e5a41d9812884515ecba779821c4d1e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to a known malicious redirector. The document body and embedded URLs also point to a link farm hosted on Shopify, with the primary malicious URL being 'https://ttraff.com/pify?keyword=liquidation+reporting+requirements'. This suggests the document's purpose is to redirect users to malicious content, likely for phishing or malware distribution.

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=liquidation+reporting+requirements
    • http://files.daretobesuccessful.com/uploads/1/3/1/3/131383483/lusomunomejixeb.pdf
    • http://files.hollylinkmn.com/uploads/1/3/2/6/132682607/karofapewi.pdf
    • http://files.the-poppery.com/uploads/1/3/0/7/130739831/sogonekovotop-jototetubo.pdf
    • http://files.jobolyn.com/uploads/1/3/1/6/131637385/tenal_fofepewepukave_sobotozezosaxev_kosotatap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/41955636568.pdf
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/cessna_310_pilot_operating_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0432/4337/2699/files/18162847801.pdf
    • https://cdn.shopify.com/s/files/1/0437/4419/8805/files/pumoxanukunimoguz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9029/7503/files/46210143278.pdf
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/sakej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/82449201305.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/dabuvusugogoxevudabebuji.pdf
    • https://cdn.shopify.com/s/files/1/0433/8866/6017/files/the_autobiography_of_benjamin_franklin_dover_thrift_edition.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_off0000624c.bin
0d885932a80fc3a527e181f5c446c5e215f55091091e2e70bee40f09146b8b86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x624C 5196 bytes
font_01_sfnt_off000073d0.bin
8e071d896b430e0e787dc35ed70f5c569300aff878ef709f0483670492a88bd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D0 10276 bytes
font_02_sfnt_off000096e8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96E8 4324 bytes

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