Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa0948e34146854…

MALICIOUS

PDF

46.6 KB Created: 2020-03-29 08:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 630aa96a48ee0764d5779dd106f567f4 SHA-1: 0fe29e12f25c3025b0127a6f89dee2aadc696df9 SHA-256: cfa0948e34146854a44010df4abfb57670f7baad5cd74dc3a9156d27ce1881a0
96 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified as a PDF SEO link farm. The primary lure appears to be related to streaming a movie, as indicated by the document body text and the initial URL. The heuristic firings suggest the document is designed to redirect users to a network of malicious or SEO-abused websites, likely for further exploitation or content delivery.

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://hotelvic-phase2-ko.devsite-1.com/uploads/1/3/0/6/130639140/130639140.html#il+piccolo+principe+film+streaming+ita+gratis PDF link annotation
    • http://www.techforaholes.com/uploads/1/3/0/5/130550901/4928835.pdfIn PDF document text
    • http://bio-nutritional.com/uploads/1/3/0/4/130476816/5561978.pdfIn PDF document text
    • http://atlanticseasaltcompany.com/uploads/1/3/0/7/130738796/wafabojebipudazepa.pdfIn PDF document text
    • http://trmkeepclean.com/uploads/1/3/0/7/130740561/varosadofasizuxe.pdfIn PDF document text
    • http://nicholemannion.com/uploads/1/3/0/4/130483879/e189f1b903b.pdfIn PDF document text
    • http://unitedchurchofchristwa.org/uploads/1/3/0/5/130541904/5b35e0b5.pdfIn PDF document text
    • http://cornerstonemovement.com/uploads/1/3/0/8/130813652/666446.pdfIn PDF document text
    • http://spinoffligandrnd.com/uploads/1/3/0/4/130490410/fe379f16e.pdfIn PDF document text
    • http://mundaringadvancedskinstudio.com.au/uploads/1/3/0/5/130588290/6058658.pdfIn PDF document text
    • http://thethonyguyfoundation.com/uploads/1/3/0/4/130435688/2f0baf08c.pdfIn PDF document text
    • http://infinitepossibilitiesmass.com/uploads/1/3/0/4/130491932/40418.pdfIn PDF document text
    • http://patriotreport.us/uploads/1/3/0/4/130476579/5188221.pdfIn PDF document text
    • http://865ip.com/uploads/1/3/0/7/130740013/787880.pdfIn PDF document text
    • http://pricedestroyer.com/uploads/1/3/0/5/130551364/sisabiv-magez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E45 8996 bytes
SHA-256: c971af1176b5384e10fd2e645f3834c5a61937183ce5593c547e26ada9bac7f3
font_01_sfnt_off00008ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA2 2600 bytes
SHA-256: 63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c
font_02_sfnt_off000097ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CE 16036 bytes
SHA-256: ddc6c38a5929b263b215a5b0c7aa8b1a409f146866f06980111f9f21a6232bf4

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