Malicious PDF — malware analysis report

Static analysis result for SHA-256 90f3a730b7358a86…

MALICIOUS

PDF

78.1 KB Created: 2021-03-04 15:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e6da603ba6387e786088a8f377d8bbc SHA-1: 2ecdeaea90b942a606780a2fac2787c2e4c6cafc SHA-256: 90f3a730b7358a86f756d5deb00ea2cb787680397822d98728c8def144f8f201
98 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV scan did not complete info CLAMAV_SCAN_INCOMPLETE
    ClamAV scan on this file did not complete (ClamAV error (exit 2)); the verdict reflects only static heuristics. The result is not cached so a later submission will retry the scan.
  • 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 https://pelibifir.ru/strik?utm_term=poulan+2150+chainsaw
    • http://rodsfish.club/53875798830cycpc.pdf
    • https://wobajaxeme.weebly.com/uploads/1/3/4/3/134350369/raroletumuso.pdf
    • https://futikuvevu.weebly.com/uploads/1/3/5/3/135349420/e42b1875505e9d.pdf
    • https://lefizedut.weebly.com/uploads/1/3/2/6/132681647/1184174.pdf
    • https://muzafudopabebex.weebly.com/uploads/1/3/4/8/134865208/1210d6fd5ae8ee.pdf
    • http://mewajofoguwuz.iblogger.org/3517752193.pdf
    • http://teligelufinuv.iblogger.org/99871043808.pdf
    • https://lexilovomab.weebly.com/uploads/1/3/1/4/131452944/6509891.pdf
    • https://sofirutowik.weebly.com/uploads/1/3/1/3/131381411/2448355.pdf
    • https://bekodezu.weebly.com/uploads/1/3/1/8/131856725/7441541.pdf
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/desesufenowejibep.pdf
    • https://girosiwubu.weebly.com/uploads/1/3/0/7/130740458/bugolixexolob.pdf
    • http://sexesex.site/656346435387hk1r.pdf
    • http://winoraama.space/13998440357zckby.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rapuwovire.rf.gd/xafevubumutafozutopenil.pdf
    • http://vomogowejupilu.rf.gd/jafemabemapib.pdf
    • http://wolaniloko.epizy.com/sawuri.pdf
    • http://pizoxuwa.epizy.com/8864249941.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3b4.bin
f948787e34a6c40bffa27f695e801209fff853731b435b2054c15b8984a4bcc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B4 5336 bytes

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