Malicious PDF — malware analysis report

Static analysis result for SHA-256 c894b73d1020adfd…

MALICIOUS

PDF

53.7 KB Created: 2020-07-10 16:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3faa7b5aaf0b5be42b08f23a7d635ce SHA-1: 0a400179b7580f94a99ced78e52cc7b5dc5fbdeb SHA-256: c894b73d1020adfd5fe1a04d2c76a75768a8983fe166e3a4eedf50c7ec590ded
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a price list, which is designed to lure users to external, potentially harmful content. The document also hosts a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of a visual download button and the malicious redirector strongly indicate a phishing or content-luring attack.

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/wb?keyword=vestige%20products%20new%20price%20list%202018%20pdf
    • http://files.bellefitnesslifestyle.com/uploads/1/3/0/9/130969879/5278596.pdf
    • http://files.bikkiebox.com.au/uploads/1/3/0/7/130738806/zutabolipoj.pdf
    • http://files.icak.com/uploads/1/3/2/6/132695836/vizomo.pdf
    • http://files.crackwisemag.com/uploads/1/3/1/3/131380482/3747266.pdf
    • http://files.thickandthintheatreproductions.com/uploads/1/3/0/7/130740180/vowiro_degazufojepe_redunutudubufob_geten.pdf
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdf
    • http://files.n947rv.com/uploads/1/3/2/7/132740618/f6c87150ec7e.pdf
    • http://files.unidadepastoral.com/uploads/1/3/0/7/130738830/viboven.pdf
    • http://files.sidleystandup.com/uploads/1/3/0/7/130775942/3089407.pdf
    • https://gelogod.files.wordpress.com/2020/07/pifojemu.pdf
    • https://jogufufi610947214.files.wordpress.com/2020/07/tazixul.pdf
    • https://gipesoginofu.files.wordpress.com/2020/07/kakoweziwodogiribatin.pdf
    • https://lanajefewi.files.wordpress.com/2020/07/96812880182.pdf
    • https://semezaxabe.files.wordpress.com/2020/07/27352696444.pdf
    • https://pevejexud.files.wordpress.com/2020/07/30726843465.pdf
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/6458498706.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86526592296.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/45295443254.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9009713252.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073db.bin
9cf0f4eb87f45223f7874d82686749a0a967e1d625e14f5c2f02b33b928e2b1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73DB 5572 bytes
font_01_sfnt_off0000870b.bin
67b2ed6217c28f2829cab0e9f7596e1a843bb96a73abb6acab7416db27d94974		 pdf-font-stream PDF embedded font (sfnt) at offset 0x870B 15232 bytes
font_02_sfnt_off0000b621.bin
8253cebf8a962771242595785e02ad38f00e2c478ec171386c75626153209000		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB621 5160 bytes

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