Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e7f4b136d34ef12…

MALICIOUS

PDF

82.5 KB Created: 2021-02-19 07:46:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33e9b84e96648550c58c34a4763d94d4 SHA-1: 63265fb96942fdb572669eefe59b6e079ef97d05 SHA-256: 9e7f4b136d34ef12a01386289c43ad903bcf2d82c266302c623a3b5331a1f811
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document employs a common phishing tactic by presenting a deceptive download button and SEO-optimized redirector link to lure users into downloading a file. The primary malicious URL identified is https://jacksth.ru/wix?keyword=ios+launcher+pro+apk+mod, which is flagged as a high-risk redirector. The ML classifier strongly indicates maliciousness, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 https://jacksth.ru/wix?keyword=ios+launcher+pro+apk+mod PDF link annotation
    • http://simcars.ru/sunshine_coast_tourist_mapftph6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wajibile/ruxuxuvewonajoxekoloti.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/5058743319.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/lujexewuposelo.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/4497711388.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/brochure_cover_design_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/gowejofalexefevu.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/star_wars_kotor_2_mira_influence_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/describe_the_qualitative_characteristics_of_accounting_information.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/gokelazizufedibo.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D3 5068 bytes
SHA-256: cc6ade60110ab4ad9d2902dc9e756d2ac90309f16a13c4d4ee6bb2873adbe943
font_01_sfnt_off0000e7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BC 3024 bytes
SHA-256: 85b3ebee3867e571d4ad065a8c6151e0aed3b29e31ca8c5b364b3b51e21f02a6
font_02_sfnt_off0000f2ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EE 10788 bytes
SHA-256: 770b3eac425b38a5c93df6d78547877af16f3c17a0f383aab5e5a2110d4ad654
font_03_sfnt_off0001180e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1180E 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67
font_04_sfnt_off00012cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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