Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1b82992454c0ac1…

MALICIOUS

PDF

51.4 KB Created: 2020-09-01 03:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7290fc8da188e051c4e0702e769bcda5 SHA-1: db836080215924b33e67dfd2d8d361409d2d217a SHA-256: c1b82992454c0ac1f65639bcec18b2512d9247a20731f5b39c8c2a2f1a9d4c0c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Transformers prime bulkhead vs dreadwing', aiming to entice users to click the malicious link. The PDF_SEO_LINK_FARM heuristic also indicates the presence of numerous external links, suggesting a broader campaign to distribute malicious content.

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/wix?keyword=transformers+prime+bulkhead+vs+dreadwing
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/setivel.pdf
    • https://cdn.shopify.com/s/files/1/0430/6678/5953/files/3946232276.pdf
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/anthology_of_short_stories_icse.pdf
    • https://static.usrfiles.com/ugd/b8c837_3107dfe9b730412ba74a3e62a761ee0c.pdf
    • https://static.usrfiles.com/ugd/de3d83_d02cf056b31e4c84b97ab2d985ff181a.pdf
    • https://static.usrfiles.com/ugd/09c3c7_a9564e2a5f7746528e25e02396b8d124.pdf
    • https://static.usrfiles.com/ugd/07e02c_e364cf4956b44b1fadf794e02cab4df1.pdf
    • https://static.usrfiles.com/ugd/ae059d_0ac4bf4813714dd684a7540297aa45d3.pdf
    • https://cdn.shopify.com/s/files/1/0446/7120/5529/files/mastering_algorithms_with_c_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/2391/6443/files/mathematics_project_models.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47184882359.pdf
    • https://cdn.shopify.com/s/files/1/0431/1757/6354/files/credit_card_authorization_form_aviva.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_off00007a6e.bin
a9076734d6c23fa65effe40d81319103ba42302698c21fc0d97c361cba3e12d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6E 4560 bytes
font_01_sfnt_off00008a34.bin
47e8835f7f07538edac2f9d1ee7ab244c174c1a165ae783d3e8325756dd5158c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A34 5760 bytes
font_02_sfnt_off00009da9.bin
64be4bd55a17f2c7aab78797422ea02cc3d663c7584a9917ec9d3ba59edd6243		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA9 10060 bytes

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