Malicious PDF — malware analysis report

Static analysis result for SHA-256 47741795d7a75574…

MALICIOUS

PDF

125.0 KB Created: 2020-04-05 06:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 62b3fb1496281025e263a0dd1853e6ca SHA-1: 20f5e81e31a64e0cc6af9c656e37a7b3f15d8929 SHA-256: 47741795d7a75574ba4599ea739ab86c665b25ef1d60d9ad1b1c03a9df85757c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many pointing to domains with numeric or generic slugs, indicative of a link farm or SEO spam tactic. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, with 'fucktard.xyz' being a dominant host among the linked domains. The document body, though heavily obfuscated, contains a URL that mirrors one of the extracted links, suggesting a deliberate attempt to redirect users. The primary attack pattern appears to be social engineering through deceptive links within the PDF.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://my-iei.com/uploads/1/3/0/7/130739117/130739117.html#fundamentals+of+data+structure+by+ellis+horowitz+pdf
    • http://fucktard.xyz/uploads/1/3/0/6/130620163/kokabowinorefu-kerenek-fitiwemu.pdf
    • http://malandrew.net/uploads/1/3/0/7/130776386/6800956.pdf
    • http://dogtrainingbylindseydowning.com/uploads/1/3/0/5/130551518/tepixogixusem.pdf
    • http://mail.knox-graceec.org/uploads/1/3/0/6/130640006/25128c.pdf
    • http://mvbabysitting.com/uploads/1/3/0/4/130489572/fijoxibaw.pdf
    • http://goefinancialservices.com/uploads/1/3/0/4/130436093/8320308.pdf
    • http://pbandkcreations.com/uploads/1/3/0/4/130435524/xumag_lavidudodopuwap.pdf
    • http://oblo.com/uploads/1/3/1/4/131453989/fubaxazo.pdf
    • http://modeparjane.com/uploads/1/3/0/7/130775308/1715581.pdf
    • http://hanfklaus.com/uploads/1/3/0/8/130873927/pupakekojeb-tidoputulat.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c578.bin
7147cc3f1b3330864d613c3a367fbbb57b59642ea2755154d9ff734191332135		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C578 8784 bytes

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