Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde6003d8588c3b9…

MALICIOUS

PDF

45.7 KB Created: 2020-08-24 21:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 935cafe0a35a57002c25db0598807490 SHA-1: 236dc1a01f5626b87a0fd26236002e0d48da15e6 SHA-256: cde6003d8588c3b9a92651f12bc1299bce205cc6de8e0903a60f222c1d78bd19
128 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a known malicious domain, disguised with a lure related to '3d adventure games for android offline'. This indicates a social engineering attempt to trick the user into visiting a potentially harmful site. The PDF also contains a large number of embedded links, many pointing to Shopify, which is characteristic of SEO link farm abuse to obscure malicious redirects.

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.com/pify?keyword=3d+adventure+games+for+android+offline
    • http://files.dearconjunction-paris-theatre.com/uploads/1/3/1/4/131437174/bubuvomurep.pdf
    • http://files.glenridgetkd.com/uploads/1/3/1/3/131384401/8190971.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/fiwenatumogazusawoleladez.pdf
    • https://cdn.shopify.com/s/files/1/0439/7550/8126/files/blank_statutory_declaration_qld_form_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/broadcast_significado_informatica.pdf
    • https://cdn.shopify.com/s/files/1/0433/8050/6773/files/kinsey_report_band_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/genumabeganuzez.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/libupo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0608/9640/files/saxefibiwavowine.pdf
    • https://cdn.shopify.com/s/files/1/0434/3762/1404/files/gunimi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9142/files/how_to_get_youtube_url.pdf
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/10768037470.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/92427209596.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_off000074b6.bin
9ac87055f9fb29fe7f3b3a0616ad0ac534816c94a84c14a4621c4c07f0803cda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B6 5356 bytes
font_01_sfnt_off000086d3.bin
01e15af32829d16c3f663978157c14d9bcff6dd27f30f3671d23bc5257cd213b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86D3 10252 bytes

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