Malicious PDF — malware analysis report

Static analysis result for SHA-256 a949f9f26e19652f…

MALICIOUS

PDF

47.8 KB Created: 2020-04-08 23:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 70eba95dc944d3106a0225e8af4d744d SHA-1: c31f3e90194642d27b4def5d43c3761f4d053a21 SHA-256: a949f9f26e19652f7194922476b6efb3e187cbcbc0e29aa7b7609f7247ab883b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this pattern, indicating a large number of generated links pointing to external domains. The document body, though partially corrupted, suggests a lure related to 'Louise hay pdf gratis', further supporting the idea of a deceptive download or content delivery mechanism.

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://tazzykaze.com/uploads/1/3/0/5/130588540/130588540.html#louise+hay+pdf+gratis PDF link annotation
    • http://suzukisingandplay.com/uploads/1/3/0/7/130740477/9496211.pdfIn PDF document text
    • http://prometheuseventsolutions.com/uploads/1/3/0/2/130289386/1cce1ab592c5d8.pdfIn PDF document text
    • http://glendalepress.com/uploads/1/3/0/6/130640028/noxokofow.pdfIn PDF document text
    • http://internationalchurchsantcugat.org/uploads/1/3/0/5/130546574/3416825.pdfIn PDF document text
    • http://daniellehall.com/uploads/1/3/1/4/131412713/4fd7b36dc811d1.pdfIn PDF document text
    • http://fitnowgal.com/uploads/1/3/0/5/130544447/kemuvogugu_nelididudagu_gabekere_luwuxojig.pdfIn PDF document text
    • http://frvoiceovers.com/uploads/1/3/0/6/130605075/b0b5c735683a.pdfIn PDF document text
    • http://yourbreakthroughcode.com/uploads/1/3/1/3/131381144/pekurugaxujo.pdfIn PDF document text
    • http://arcofbrowncounty.org/uploads/1/3/0/6/130620604/63399512a93e18.pdfIn PDF document text
    • http://trailchallengechampionships.com/uploads/1/3/1/4/131455158/xizibara.pdfIn PDF document text
    • http://runwildsanfrancisco.com/uploads/1/3/0/9/130969868/xijalugot.pdfIn PDF document text
    • http://lionfoundation.net/uploads/1/3/0/6/130640175/linitofufuraxi_murojab.pdfIn PDF document text
    • http://bounce4joyrentals.com/uploads/1/3/0/6/130620841/kusovone_risudipezaneso_zenatipux_zexapipamo.pdfIn PDF document text
    • http://pppelectro.net/uploads/1/3/0/6/130605254/muremunesoge.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
    • 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_off00007169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7169 7496 bytes
SHA-256: 9f06764ad2f036f0675a3ff64dd3011aff2d624c4fd1c16378a1b76a5bc4af9c
font_01_sfnt_off00008ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECD 2484 bytes
SHA-256: 0a74f62927e6506cf556ce04093ddaf717254a888a2313c4e0126ed6d6ed1ae5
font_02_sfnt_off00009857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9857 16780 bytes
SHA-256: 6f4a7244d5175fbc339cb7f4160b36b0a7c0603070555e3afc7379a40d4dec81

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