Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3010e291beddf88…

MALICIOUS

PDF

36.2 KB Authoring application: PDF Studio
MD5: 59250793553ce0f581b5e42ee9cddb93 SHA-1: 2d01cbe00e360e275c33e0c4e1beece38a9444a4 SHA-256: e3010e291beddf88a4b41825061aeca021ec9fbd69460c3d3dad7938627886fc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which is indicative of SEO spam or a redirection scheme. The ClamAV detection further supports its malicious nature. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure. The primary attack pattern involves leveraging numerous external URLs for malicious redirection.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://watershed.one/uploads/1/3/0/5/130588150/7832435.pdf
    • http://ziya.net/uploads/1/3/0/7/130776350/lazedafo.pdf
    • http://mielikkishots.com/uploads/1/3/0/8/130874102/nozinulepexiki.pdf
    • http://ethansanderlin.com/uploads/1/3/0/6/130620438/ketisilovujesawu.pdf
    • http://royalorleansresort.com/uploads/1/3/0/6/130604656/561eaacd660.pdf
    • http://gncseattle.com/uploads/1/3/0/7/130738706/natebini.pdf
    • http://www.playtennissf.com/uploads/1/3/0/4/130476066/lukumorudesufali.pdf
    • http://louisvillepsychiatry.com/uploads/1/3/0/7/130739475/5026531.pdf
    • http://hotwinedeals.com/uploads/1/3/0/5/130590507/c85719ab.pdf
    • http://lolque.com/uploads/1/3/0/4/130435589/1844572.pdf
    • http://myallscent.com/uploads/1/3/0/3/130379412/riwumazumizegira.pdf
    • http://northmeats.com/uploads/1/3/0/6/130604226/roretenitoj.pdf
    • http://gnsi7.bpmtc.com/uploads/1/3/0/6/130640018/130640018.html#how+to+play+just+another+day+in+paradise+on+guitar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c53.bin
d5f9703aa333f4d07eee832e2a2aa5ab0bd07eb6daa1a0d5a0ad35018c67a1b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C53 8364 bytes

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