Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ce27436b08b0ffb…

MALICIOUS

PDF

44.9 KB Created: 2020-03-29 04:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d162ccf14c325cfd9f22685bf247347a SHA-1: 651aa3eed0299a8e328ff1e9f1be8ccd99f553bc SHA-256: 1ce27436b08b0ffb8332f46be60bbd1748e145cd8e229ae0b56c1834186973e7
94 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The embedded URLs likely serve as a link farm for SEO manipulation or to redirect users to malicious content hosted on numerous domains.

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://kreativekidsworld.com/uploads/1/3/0/7/130775402/130775402.html#el+neoclasicismo+caracteristicas+literarias
    • http://designbedrift.no/uploads/1/3/0/4/130488621/8300580.pdf
    • http://www.groterzelfvertrouwen.com/uploads/1/3/0/7/130775375/faxagelupaxosil-lelol-jiruxenaguziw.pdf
    • http://mx.janinerosenberger.com/uploads/1/3/0/6/130603776/3486436.pdf
    • http://islandtreasuregifts.com/uploads/1/3/0/4/130488101/duwot_soxil.pdf
    • http://roserefrigeration.com/uploads/1/3/0/4/130483836/jegoxusi-lineneso.pdf
    • http://damouretdesucre.com/uploads/1/3/0/4/130488469/koxogekorovu-nikevasun-kotolixikifave-daxubutugu.pdf
    • http://nctawana.org/uploads/1/3/0/5/130539034/jelovik_pejunuvo_lepefevakew_kisaguvis.pdf
    • http://infinitysurfcharters.com/uploads/1/3/0/5/130588299/4836087.pdf
    • http://dappgen.com/uploads/1/3/0/4/130488580/0a722cf4273.pdf
    • http://atbpropertygroup.com/uploads/1/3/0/6/130640136/6531689.pdf
    • http://smqlimo.com/uploads/1/3/0/6/130605387/lasulepudadubex.pdf
    • http://www.bonificator.com/uploads/1/3/0/5/130545260/e27945136cbfb.pdf
    • http://travelhumira.com/uploads/1/3/0/7/130739198/kuvinuni-dudutoz-popagabi.pdf
    • http://rapidoutdoor.com/uploads/1/3/0/4/130435892/096b92384ca93.pdf
    • http://islavistabicycles.net/uploads/1/3/0/7/130776489/vuvimitav.pdf
    • http://shineupandrise.com/uploads/1/3/0/8/130874600/2964967.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_off0000827f.bin
1ab46e70eca8c48999be62171f70bf9798a70f982d21ab3b713768352c63fc06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x827F 9648 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.