Malicious PDF — malware analysis report

Static analysis result for SHA-256 c280ef7e0997c38f…

MALICIOUS

PDF

38.5 KB Created: 2020-03-10 13:26:38 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 007fc45965529bcab208aa51d2d437ed SHA-1: 8f5c4ba2c37385b60e5a663614531805b4dc3d6a SHA-256: c280ef7e0997c38f6a829176d0fb330da537c90944ea189f7349a3299ccda249
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDF files on unrelated domains. This behavior is characteristic of SEO spam or a phishing campaign designed to drive traffic to malicious or deceptive content. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://craniosacralnashville.com/uploads/1/3/0/6/130605403/130605403.html#akai+professional+lpk25+editor
    • http://mail02.celestecorp.com/uploads/1/3/0/8/130813496/karuvemiw_wuluwaxe.pdf
    • http://igniteyoga.org/uploads/1/3/0/4/130436224/nuratufizo-mewijepowiren-wegitafepuv.pdf
    • http://binarysv.com/uploads/1/3/0/3/130379612/kifitadube_tawipusuwefiwuw_jowonukowawota.pdf
    • http://panicroomrichmond.com/uploads/1/3/0/7/130776712/ed191.pdf
    • http://nataliezinawalschots.net/uploads/1/3/0/6/130620538/9baab.pdf
    • http://www.merrillsoccer.org/uploads/1/3/0/3/130323659/buberodufojavat-vokesuketeni-satuge.pdf
    • http://almajednetwork.com/uploads/1/3/0/6/130621819/fudalif.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/2/130271219/d7e02b4139aa24.pdf
    • http://tapitngo.com/uploads/1/3/0/3/130323535/rajolulejore_wagijovorivoguz_jatogenesibizet.pdf
    • http://constructoramv.net/uploads/1/3/0/8/130874510/cb1e8a5.pdf
    • http://www.amethystchirurgie.ch/uploads/1/3/0/4/130476481/624915.pdf
    • http://dcmserviceinc.com/uploads/1/3/0/6/130604735/rivaziwitan_bovotiko_sutowupipul.pdf
    • http://dashielllaw.com/uploads/1/3/0/7/130776169/saxuv_nasarevojiju.pdf
    • http://mx.artpotters.com/uploads/1/3/0/3/130379150/1a049b.pdf
    • http://www.dixie-district-outfitters.com/uploads/1/3/0/6/130620431/rejisulenire_gixalefole_bibejedizodom_jageli.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_off00006d9c.bin
d1135ce21ec4b214cd14f90b65692f4eefa404057e0e0a394993b0a63b26015b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9C 8012 bytes

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