Malicious PDF — malware analysis report

Static analysis result for SHA-256 32cbc4beb7ef1058…

MALICIOUS

PDF

39.6 KB Created: 2020-08-01 08:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 597e4ce5c18059a22386326c96c6e87c SHA-1: 05edbad0981616e01d45cf6c8a96a149163497dd SHA-256: 32cbc4beb7ef1058784ee25f4a72b46ef848dec31cd531b7167e0575e448e0db
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary link redirects to 'ttraff.cc', a known malicious domain, and is presented in a way that suggests a document download. The document body, though heavily garbled, contains text related to a PDF title and the authoring application, reinforcing the lure. No scripts were extracted from this sample.

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/pify?keyword=fundamentals+of+applied+electromagnetics+pdf
    • http://files.drjglisson.com/uploads/1/3/0/8/130813063/15d667.pdf
    • http://files.goyneselementary.com/uploads/1/3/1/0/131070842/vovonuwejajifi.pdf
    • http://files.stayinplace.org/uploads/1/3/0/9/130969904/8816889.pdf
    • https://cdn.shopify.com/s/files/1/0430/3503/3757/files/27382537955.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/pozupimobabagoru.pdf
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/bidowavapokabugexesuze.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/janewetas.pdf
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/14917253151.pdf
    • https://cdn.shopify.com/s/files/1/0432/7532/1499/files/sasol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zutowujovepenatugipo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/wubeguzubewuzumuri.pdf
    • https://cdn.shopify.com/s/files/1/0440/0267/2798/files/gaxekibegaku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdf
    • https://cdn.shopify.com/s/files/1/0440/5103/8358/files/dilevemirodofunenod.pdf
    • https://cdn.shopify.com/s/files/1/0428/5205/7244/files/re_your_brains_lyrics.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_off00005c72.bin
fae82a3b55d95d6be0cfb97428d9ff5b0070e655b7455bf3536d0f162a53dba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C72 5432 bytes
font_01_sfnt_off00006ed8.bin
5fe9b83084253c96e69127fe2b56988371801b22414331c8c16623247787c858		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED8 10112 bytes

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