Malicious PDF — malware analysis report

Static analysis result for SHA-256 c146daf5423d24bb…

MALICIOUS

PDF

34.7 KB Created: 2020-03-10 02:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2021-05-17
MD5: 089ff7cb30c5573a1bc04c6e190d46c6 SHA-1: 0d2c8ceed940658554fda1c9f3bbc2e29cbcccfc SHA-256: c146daf5423d24bb2168bd9cdc149bfa0dd68cce5ec6818f901d2644f6b82edf
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://zvn.brdge.org/uploads/1/3/0/2/130291438/130291438.html#adobe+pdf+online+converter PDF link annotation
    • http://www.jayleneclark.com/uploads/1/3/0/2/130288316/ziromokopixuz_vomog.pdfIn PDF document text
    • http://weldingandrepairs.com/uploads/1/3/0/9/130968925/1ede600b36.pdfIn PDF document text
    • http://faithworks4us.com/uploads/1/3/0/4/130483114/6aa7ba.pdfIn PDF document text
    • http://missturquoisecircuit.com/uploads/1/3/0/6/130605203/9105259.pdfIn PDF document text
    • http://efmlufkintx.org/uploads/1/3/0/2/130291624/povudep_jezejupuxukup_kifalowu.pdfIn PDF document text
    • http://partyart12.com/uploads/1/3/0/6/130620690/paroguna.pdfIn PDF document text
    • http://golivebeautiful.com/uploads/1/3/0/8/130874248/310e01efede.pdfIn PDF document text
    • http://ppc-rainmaker.com/uploads/1/3/0/5/130539085/9366598.pdfIn PDF document text
    • http://scottystoybox.com/uploads/1/3/0/2/130272234/ef8b8e.pdfIn PDF document text
    • http://jewelrybyjimpluhar.com/uploads/1/3/0/4/130435721/4714002.pdfIn PDF document text
    • http://yasinrahim.com/uploads/1/3/0/2/130274267/tejebiz_lukesaki_xezijiloze_vokukusarajo.pdfIn PDF document text
    • http://underthebrolly.com/uploads/1/3/0/3/130313700/wekemidijawawez-limerutexaz-bamid-nugifu.pdfIn PDF document text
    • http://www.m4asanow.com/uploads/1/3/0/3/130379272/4284954.pdfIn PDF document text
    • http://drterris.com.au/uploads/1/3/0/4/130476390/2974d70a7d86.pdfIn PDF document text
    • http://robertahiming.com/uploads/1/3/0/6/130639785/sobaxazul.pdfIn PDF document text
    • http://www.twdental.pl/uploads/1/3/0/6/130639516/tubula-wujetulut.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB2 7736 bytes
SHA-256: 9520af41f7db05694f333de406a5670f6d58d9d0891f9523cd8ecd2645b3720e