Malicious PDF — malware analysis report

Static analysis result for SHA-256 afba72f646e1f693…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 05:56:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7589c8830b63bb1d312ec0dd7efd1717 SHA-1: ebcc1e39cd929f9d27a038d3354325b3abd31407 SHA-256: afba72f646e1f693359ad22577e509b975f96aace1f2bccc51e30632f9e0874c
128 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a link farm. The document body, though heavily obfuscated, contains a URL that is also flagged as malicious. The presence of a 'download button' lure further supports a phishing or social engineering attack pattern. The primary malicious URL is https://ttraff.cc/pify?keyword=synaptics+ps%252F+2+port+touchpad++windows+10, which redirects the user to potentially harmful content.

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.cc/pify?keyword=synaptics+ps%252F+2+port+touchpad++windows+10
    • http://vumivof.finstofeatherstaxidermy.com/uploads/1/3/0/7/130739275/ae2933ec624.pdf
    • http://files.everydayevents.us/uploads/1/3/0/8/130874010/pebonurisoza.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8535/files/21707238392.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/1131745341.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/29544499473.pdf
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/35372866831.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/gebobovufesawurokewum.pdf
    • https://cdn.shopify.com/s/files/1/0432/7407/6315/files/95302122013.pdf
    • https://cdn.shopify.com/s/files/1/0430/7451/9201/files/68589927355.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/37687758373.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/desekajurolede.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_off00006c78.bin
c129f611bec68cf840a55212ec48c7fb1cfd61d2599a0f4b4b4ccd8090954b8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C78 5788 bytes
font_01_sfnt_off0000803d.bin
f98bd51bf3f0ad8ddfbdac996fd71b74b9c45bcdff7dbe7b8ca03696b48a6b6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x803D 15316 bytes

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