Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cf18e89af6d3be5…

MALICIOUS

PDF

82.7 KB Created: 2020-07-28 05:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01c712ca936348e950f8afec0b05994f SHA-1: 5c74236d141ad7879dd3f0220cfb52a24bce6798 SHA-256: 9cf18e89af6d3be5dc7c2652c4cba8605abec04b6b05c971e699f27adcd217a1
128 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with 30 links identified as part of a link farm. One of these links, 'https://ttraff.com/pify?keyword=bicycle+race+queen', points to a known malicious redirector. The document's structure and the presence of numerous external links suggest an attempt to drive traffic to malicious infrastructure, possibly for SEO abuse or to host further malicious 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bicycle+race+queen
    • http://files.texasfinesse.com/uploads/1/3/1/4/131455956/wupiwowopasu_bepukugijisegil.pdf
    • http://files.costacalidapropertybroker.com/uploads/1/3/0/9/130969525/ae4636c3ced.pdf
    • http://files.isetteconi.com/uploads/1/3/1/0/131070529/0648b1373.pdf
    • http://files.jonathanlumsden.com/uploads/1/3/2/6/132696483/felixujomujawe_guruwobivosa.pdf
    • http://files.suracipaintingllc.com/uploads/1/3/2/6/132681351/mixufapelurab_vipapuxukevudi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/xagero.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0769/files/sugejow.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/vozenetixiwuxivejuzo.pdf
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/52590643886.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/24444004646.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/tumugeku.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/segokisovetoma.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/91085877335.pdf
    • https://cdn.shopify.com/s/files/1/0429/9220/5978/files/kivekaxomowilisujegeboro.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/dubamaka.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdf
    • https://cdn.shopify.com/s/files/1/0432/1289/8461/files/wutenabalonalimega.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/filibu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008048.bin
fd83d82b9f1cc6bc1c78d56ddefb957e6e068b94edb2e4cfe82c8310fbb51cd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8048 34976 bytes
font_01_sfnt_off0000ebe2.bin
31dfa066f5b22460cf2c9781da6a5f43bbb8825a635f4333ec89c48b3169f427		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE2 4584 bytes
font_02_sfnt_off0000fb76.bin
c9916770e8a3f4b5341b7f8c96e891478cdbdb324da051c233265179422216c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB76 13624 bytes
font_03_sfnt_off00012778.bin
9fc63ec66482e66516849721d4dfff17d3b0c4d9cff13ed6b62117b587128c66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12778 16240 bytes

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