Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f44e00933dd11c6…

MALICIOUS

PDF

36.5 KB Created: 2020-04-14 11:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 57d03b296c6ecba64d127b14657850f7 SHA-1: b9b9d734182d6c714867a811679440fdaef25d88 SHA-256: 2f44e00933dd11c65e9cfc63fac38757fa2daea714cfa80213db43aa100d0d9a
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common tactic for SEO poisoning or directing users to malicious sites. The document body, though heavily obfuscated, contains a URL that points to a website likely used for distributing further malicious content. The presence of numerous PDF links suggests an attempt to manipulate search engine results or create a link farm. No scripts were extracted from this sample.

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://sugarmamasconfections.com/uploads/1/3/0/4/130489123/130489123.html#quarter+half+past+time+worksheets
    • http://w2os.org/uploads/1/3/0/6/130639373/1453787.pdf
    • http://realmisterketo.com/uploads/1/3/0/6/130639251/4878311.pdf
    • http://oilmensgolfassoc.com/uploads/1/3/1/4/131483083/viwatozidavef.pdf
    • http://charmingnailsandspa-humble-tx.com/uploads/1/3/0/6/130639270/bixowovizigazaletu.pdf
    • http://markzellenrath.com/uploads/1/3/0/8/130815013/cbd23d10f58d38.pdf
    • http://muellerdermagier.de/uploads/1/3/1/3/131380087/wepawurixejarir-ziguguta.pdf
    • http://kpedgltd.com/uploads/1/3/1/4/131454396/5784961.pdf
    • http://blueheroncounseling.com/uploads/1/3/0/7/130738948/cfabc945.pdf
    • http://monarchteachernetworkmanitoba.com/uploads/1/3/0/6/130621836/fizopulaketuniwujoju.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_off0000672b.bin
9288f0da77af47b77a0a4079cd3500030766443104e2935c5c65732813fb33b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x672B 8264 bytes

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