Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a1a05366fa621c3…

MALICIOUS

PDF

41.2 KB Created: 2020-04-01 18:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4be3348911dfa0a26636f3e8cbeddfe1 SHA-1: 014e4fa1197e94da9e1d123bf746eae7f719d1e6 SHA-256: 4a1a05366fa621c30d7089e331279848fb0f7382b718d03a032d23ee501a246b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to other PDFs hosted on various domains. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to malicious or low-quality content. The document body itself is largely garbled but contains a reference to a coloring book, likely a lure. 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://deloserve.com/uploads/1/3/0/3/130323139/130323139.html#boca+animada+para+colorear
    • http://pellipandiri.com/uploads/1/3/0/7/130739362/vusazat.pdf
    • http://hostmaster.honeypotcreativecafe.com/uploads/1/3/0/4/130477009/2648440.pdf
    • http://dominicdormouse.com/uploads/1/3/0/5/130588617/wirazagak_fatovi_sinamujubo.pdf
    • http://mylibruldad.com/uploads/1/3/0/2/130289675/tudufabafopawotutipa.pdf
    • http://darijaradic.com/uploads/1/3/0/3/130379169/1770776.pdf
    • http://englishinsights.com/uploads/1/3/1/4/131453512/8852215.pdf
    • http://africanconservationhub.com/uploads/1/3/0/4/130488741/wesinew_tumak_taxezorepoke.pdf
    • http://retrayno.com/uploads/1/3/0/5/130589114/2d136711.pdf
    • http://jewelry-fragrance.com/uploads/1/3/1/4/131406453/barufot.pdf
    • http://mantrafarm.com/uploads/1/3/0/8/130814960/vizudi.pdf
    • http://ariseandshinephotos.com/uploads/1/3/0/3/130323936/gobijimiwejememos.pdf
    • http://theguardian.academy/uploads/1/3/0/2/130272955/kifexonedowonusana.pdf
    • http://vernalinzey.com/uploads/1/3/0/8/130813582/bc18e6aedd.pdf
    • http://tinakuhncommunication.net/uploads/1/3/0/7/130739264/4741731.pdf
    • http://geekygiftbaskets.com/uploads/1/3/0/5/130540296/3176828.pdf
    • http://mydiamondmakers.com/uploads/1/3/0/5/130550867/beluw.pdf
    • http://natureofthebody.com/uploads/1/3/0/8/130874469/wigadutekojupifi.pdf
    • http://mhsptsa.org/uploads/1/3/0/2/130270776/xofavupid.pdf
    • http://laurensimkins.com/uploads/1/3/0/7/130740462/tejozujaf_lupoguboro.pdf
    • http://arkansashorizon.com/uploads/1/3/0/7/130776334/garux.pdf
    • http://platform-solutions.net/uploads/1/3/0/8/130874422/rojun_zesozav_xabul.pdf
    • http://ralyvas.store/uploads/1/3/0/6/130604877/dexapodizodisiwodalu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a24.bin
1e5b07cf266325f4eccba833a090f2deb0d8b3ce36c682e6ae304c3d1c341104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A24 8344 bytes
font_01_sfnt_off000087cc.bin
89d4582d1f83965f42e23c0e6626d7ada7c01c22518cd1944fd4a7be269fea4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87CC 6068 bytes

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