Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d791c7ed8266e9a…

MALICIOUS

PDF

68.9 KB Created: 2020-08-30 21:14:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86bf2c6a977fb43adb434c5fedcfbd8e SHA-1: bedeee55bd2a6c5e89d65d1afaf30d8cb687152c SHA-256: 8d791c7ed8266e9a4e98b382cba4623ae5797d2981540f56aa9c643e5b4d3da6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is part of an advance-fee scam lure. The document body, though heavily obfuscated, contains the same URL. The heuristic SE_ADVANCE_FEE_SCAM_LURE confirms the document's intent to defraud the user by promising a prize or funds contingent on some action, likely clicking the malicious link.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/wix?keyword=vault+monsters+bl3
    • https://static.usrfiles.com/ugd/4c1554_0dbb79cd321449d29fd9d65d0ddcd38b.pdf
    • https://static.usrfiles.com/ugd/906e9f_163c530f6c4c40a6835ff58ecb2f1def.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d49632ee9294ca1a27a9e31d8779245.pdf
    • https://static.usrfiles.com/ugd/b8c837_7044fa1985aa484a947f36886fe0554c.pdf
    • https://static.usrfiles.com/ugd/fbccce_3117219ad6d44c86af9e05f065a7b877.pdf
    • https://static.usrfiles.com/ugd/e3834b_54800d67a5b2466c96b744372ed16d06.pdf
    • https://static.usrfiles.com/ugd/b8c837_5acd9ac1fd20458884f93b90043b3982.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0269/files/surat_ar_rahman_dan_terjemahannya.pdf
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/ketijefebab.pdf
    • https://cdn.shopify.com/s/files/1/0432/3567/2219/files/vapeborumid.pdf
    • https://static.usrfiles.com/ugd/a467d2_c78a3f5f7594441ea77fc38054e30528.pdf
    • https://static.usrfiles.com/ugd/93c935_67942ca24ddb407e93a9825b75e16143.pdf
    • https://static.usrfiles.com/ugd/d01287_997febb2aa4049f3bb627bebc4236efc.pdf
    • https://static.usrfiles.com/ugd/b8c837_3cefc7238c4540a884b66f684e1a503d.pdf
    • https://static.usrfiles.com/ugd/b8c837_595645a606b9452192fa9041e802d36b.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_off0000cfa5.bin
39ea91a14600cb1c3ba5ae5208f4881d28732879477f5af56fe466a820e8ccfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA5 5100 bytes
font_01_sfnt_off0000e0e6.bin
8d01a1c25fc8a930b8ccdb07d618e0a0ec2d6e2d0913074b022e942582d6d017		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E6 10708 bytes

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