Malicious PDF — malware analysis report

Static analysis result for SHA-256 847abd329434376d…

MALICIOUS

PDF

144.2 KB Created: 2020-11-04 12:09:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 1477b5f374f7888495869470e92c93f8 SHA-1: 1cf7d4f60516c73a6ed5b9653e67dfba59ad5bac SHA-256: 847abd329434376d77ce668fd0a3386f94f523ea5131048d454e4210ac8aaf95
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ggtraff.ru/123?keyword=call+of+duty+mobile+latest+hack+apk In PDF document text
    • https://s3.amazonaws.com/dogazisuze/dugenepigirakojev.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/bsc_physical_science_with_chemistry_syllabus_du.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/little_girls_blue.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/wawudumu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405208/normal_5fa033d4badcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403676/normal_5f9369d795e22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5f9b6bdf30c09.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/pdf_to_word_converter_free_nitro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411481/normal_5f99882ab4db2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368770/normal_5f89f6d60e915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5f88606f726f4.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0001c0df.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0001c0df.bin)
    • https://uploads.strikinglycdn.com/files/b7aec15d-470e-4b5f-8487-319380ea5741/animal_jam_hack_no_surveys.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 extracted file (stream_006_off0001feba.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off0001feba.bin)
    • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off0001c0df.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001feba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1FEBA 30680 bytes
SHA-256: aa05638fb1cb4b52b12d3fa4ca139ba36f2d3c237dd80f65173b636fd0b3541d
font_00_sfnt_off0001c0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C0DF 5508 bytes
SHA-256: 4097e74e86503abc37cbcf6d17b4f7a441bad1b2eba23143233177f989b2d133
font_01_sfnt_off0001d37e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D37E 12852 bytes
SHA-256: bbae0c9f485777087422c2638d83e47494c7499b7d853a7ea3227111628b21ff