Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd617cdd7da1ea15…

MALICIOUS

PDF

41.7 KB Created: 2020-04-02 07:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3c47255793e77ff78d7df9c1d449ad59 SHA-1: c4c982119ee0fac56f855c8e698593b47c31b50a SHA-256: dd617cdd7da1ea15d0727db7e896626ebb4ac996f977ef54cc4f26b3ee351262
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a method to distribute malicious content under the guise of legitimate documents. The primary heuristic, PDF_SEO_LINK_FARM, strongly suggests this intent. No scripts were extracted, limiting further analysis of direct payload delivery.

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://qualitycareafh.com/uploads/1/3/1/1/131164266/131164266.html#whiskey+before+breakfast+guitar+tabs
    • http://jeffersongalleries.com/uploads/1/3/0/6/130604805/4244674.pdf
    • http://yourbreakthroughcode.com/uploads/1/3/0/6/130605346/siruvomavopigade.pdf
    • http://laurentraviseverett.com/uploads/1/3/1/3/131383854/6988090.pdf
    • http://katclarebeauty.com/uploads/1/3/0/8/130873741/9735751.pdf
    • http://purchase-good.com/uploads/1/3/0/6/130639956/sekasu.pdf
    • http://alpurpletaxi.com/uploads/1/3/1/4/131437089/lofadikez.pdf
    • http://llluxeevents.com/uploads/1/3/0/4/130476074/8f5f2898580.pdf
    • http://averob.com/uploads/1/3/1/4/131438098/2947cfc9836dac8.pdf
    • http://monaconsultingservices.com/uploads/1/3/0/5/130588499/jidafebomu.pdf
    • http://nadozcafe.com/uploads/1/3/0/4/130483041/luvedexifokulivig.pdf
    • http://blackdawn.media/uploads/1/3/0/7/130739578/5861113.pdf
    • http://skladbudowlany-otwock.pl/uploads/1/3/0/8/130874212/d0192b.pdf
    • http://jaredpawloski.com/uploads/1/3/1/4/131437161/2d691fc.pdf
    • http://organicscoops.org/uploads/1/3/0/5/130588693/radiv.pdf
    • http://willersdorf.com/uploads/1/3/0/4/130476104/wixinovu.pdf
    • http://andrewleviston.com/uploads/1/3/0/4/130483765/zerurad_koteserejom_xejulesu.pdf
    • http://jacquelinehyra.com/uploads/1/3/1/4/131437709/515350.pdf
    • http://bestsoundonly.com/uploads/1/3/0/6/130640006/7eee3c85b.pdf
    • http://proteamshops.com/uploads/1/3/0/7/130775098/2184334.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_off0000785f.bin
7618996c774e487322e32034e080502cd28924f5b496abd955ac8e0604a61622		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785F 8572 bytes

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