Malicious PDF — malware analysis report

Static analysis result for SHA-256 550f1d6d190592fb…

MALICIOUS

PDF

41.2 KB Created: 2020-10-23 01:41:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: c3f5c36aab59d570b8c0b68e1de1311f SHA-1: 946a8906c347022e2d5304b107ee623d27bb2d6a SHA-256: 550f1d6d190592fb707486755dffa3dbdaa42a03d504c1889c21544a7c2e39bd
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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.
  • 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
  • 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://ttraff.com/123?keyword=guyon+waton+sebatas+teman+mp3+download+wapka In PDF document text
    • https://seririgikum.weebly.com/uploads/1/3/0/7/130739922/8811960.pdfIn PDF document text
    • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/7014605.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/8104796.pdfIn PDF document text
    • https://dujopoda.weebly.com/uploads/1/3/0/7/130739119/6367104.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/bovolaribobo.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/51374091367.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/datixinebigopupifebotap.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/fernando_pessoa_poems_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/xemopesadiju.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000527e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000527e.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00008927.bin)
    • https://cdn.shopify.com/s/files/1/0438/9447/2856/files/36732784362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7101/5578/files/flatten_layers_bluebeam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1671/2100/files/boss_gt-1_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2041/3860/files/bates_physical_examination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/chromatography_worksheet_ks3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/le_rhinocros_eugne_ionesco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9107/6283/files/cover_letter_purpose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6424/8470/files/fijapot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8158/9432/files/solstice_and_equinox_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7534/6847/files/espn_fantasy_football_app_android.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 extracted file (font_00_sfnt_off0000527e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000527e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527E 5436 bytes
SHA-256: 6a22ee4dbde1c86cd5b3196b6f4c96e6c87ef7addc41648c41b61bb51866cdef
font_01_sfnt_off00006505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6505 10692 bytes
SHA-256: 990baa64b60a127d819a5c76a52b63553cb21838a507db204d6e520e3078bf9c
font_02_sfnt_off00008927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8927 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e