Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69ef4014808b840…

MALICIOUS

PDF

30.5 KB Created: 2020-03-29 13:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 678cbef5f0fb0cc3cb052e0c757a8ffb SHA-1: 46754f6db51e4ec3850d6a4bba4847491ce1f40a SHA-256: c69ef4014808b840220a116e2569b83b184e090763709bec0036fb84be13b1fa
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve as a link farm to distribute traffic to various potentially malicious sites. The document body contains garbled text and what appears to be metadata from the wkhtmltopdf tool, suggesting it was programmatically generated rather than user-authored content. 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://richter-family.rominastiebenphotography.com/uploads/1/3/1/1/131164257/131164257.html#abcya+parts+of+speech+quest+4
    • http://rubberbumperplaterepairkit.com/uploads/1/3/0/7/130740140/topozumozozida-fowisurosefase-sifazebopigize-bibixutir.pdf
    • http://themamagut.com/uploads/1/3/0/5/130588263/nawavezixaru.pdf
    • http://barbies-boutique.com/uploads/1/3/0/5/130538922/lirulefodo_zogitevuvotaj_lonugef_luwixetafemepox.pdf
    • http://coastalbodyrepairs.com/uploads/1/3/0/7/130776699/ab2da04922adacf.pdf
    • http://adaassurance.net/uploads/1/3/0/4/130483682/bd8c6e0189b975.pdf
    • http://homeinspectionrepairservice.net/uploads/1/3/0/7/130738661/7738263.pdf
    • http://counsellingservicesnelson.com/uploads/1/3/0/4/130476339/ganevixifulakoxepoz.pdf
    • http://jrkproperties.org/uploads/1/3/0/8/130874530/jemuvajipede_gujesof_wamitinum_gonoberawagelug.pdf
    • http://www.deborah-lindholm.com/uploads/1/3/0/7/130740138/gafumu.pdf
    • http://hnccleaning.co.nz/uploads/1/3/0/4/130476014/madokiw.pdf
    • http://laurakraftowitz.com/uploads/1/3/0/3/130313383/ff00a8329.pdf
    • http://melindachickering.com/uploads/1/3/0/5/130542983/1591542.pdf
    • http://northdiamondcapital.ca/uploads/1/3/1/3/131381135/wobuzorasinowulov.pdf
    • http://daddychill.com/uploads/1/3/0/6/130621721/fekesofeb-xesiva.pdf
    • http://optronics.us/uploads/1/3/0/6/130604808/899137.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_off00005455.bin
545144811dd0807b01ef033d5dd05f601bad8e756b18f8807a125f3b928a77c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5455 6184 bytes

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