Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ac53086dcd14ab3…

MALICIOUS

PDF

41.4 KB Created: 2020-09-18 08:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00e02e50fbf6ac193dcb564cad559683 SHA-1: f4855468e38d0fe1da2a6d381992ef30527ba317 SHA-256: 3ac53086dcd14ab3d303cc44510480c8e0bea958d14692da2d9dcb927fafcf7f
128 Risk Score

Malware Insights

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

The PDF contains a lure for a free manual download, which is a common social engineering tactic. The document embeds numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or malware delivery.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=2002+suzuki+gsx750f+manual+free+download
    • http://miwagi.eventhampton.com/uploads/1/3/0/8/130873843/6735177.pdf
    • http://bivovim.elimpetaluma.org/uploads/1/3/1/6/131606228/zopewivisulapepito.pdf
    • http://tefef.jdbscholarship.com/uploads/1/3/0/9/130969744/416827.pdf
    • http://wigaforu.rivervalleytcf.com/uploads/1/3/1/8/131857445/vubuwo.pdf
    • https://520b49a0-2a5c-4d11-9ee8-bfd2953c013b.filesusr.com/ugd/7a359d_ecb584b6a12449e7b7fbaf70602c5f50.pdf?index=true
    • https://d126c9cc-8383-4d79-9706-81b291f9c130.filesusr.com/ugd/7e84b7_d89c57bedcfd40c7ab34711793901367.pdf?index=true
    • https://c6f9ce5d-a32c-4a75-a325-ba53e932ba0d.filesusr.com/ugd/930050_af55e2cc5b254c56b5388f506e858a7b.pdf?index=true
    • https://db648a54-d9b8-4bed-b03a-cca0d7822b32.filesusr.com/ugd/95bb70_e0e9f2bc9fe94bbe9c98bf957634ef89.pdf?index=true
    • https://81e79ea6-b50b-449a-aede-b573c3ccb0f3.filesusr.com/ugd/95ea6b_4ef341dd201e44aa8e51747fa6987ca4.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/xedozilitajopir.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/40707594408.pdf
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/34671951856.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_off000058ae.bin
e66c8553813ac623aaa1f591003e37b12ea39225b0031843f3c8a08ccd719810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58AE 5884 bytes
font_01_sfnt_off00006cd5.bin
b8c8c3005f31aae0dbbd60cff6d7e036584c2bada597a8144eba2057c095ac4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD5 14000 bytes

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