Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea64e70aca6e81e0…

MALICIOUS

PDF

52.4 KB Created: 2020-07-25 07:47:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cb056e6f77cd466d876aad6a9005c30 SHA-1: d79c8bf9963cf1821fec097eb5d6d2d567e61a4c SHA-256: ea64e70aca6e81e00ed6e8c2fc854c899577f677396dd9f8b6376c70123ef0b8
202 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a redirector service. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to video downloads, suggesting a lure to entice clicks. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the idea of a deceptive call-to-action.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.ru/pify?keyword=vaste+full+video+song++3gp In PDF document text
    • http://files.fairlightfolk.com/uploads/1/3/2/6/132681587/eeb9a92f.pdfIn PDF document text
    • http://files.citystarhotelyangon.com/uploads/1/3/1/3/131380485/veguni-nibivofajata-wosar-xuwetumogutej.pdfIn PDF document text
    • http://files.mthermonministries.org/uploads/1/3/0/8/130813416/pewamevok.pdfIn PDF document text
    • http://files.prettylittlethings02066.com/uploads/1/3/1/0/131070918/2075142.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/68859452801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/95201173504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0490/3069/files/18734788765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9764/4449/files/bozavukuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/pokovusepibarenazux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/jujubobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/nadum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/97457822495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8436/files/91020847088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/38378383749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4045/6360/files/830252652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1303/5416/files/zuxevovidofewenavutavus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/lapifidar.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D89 5184 bytes
SHA-256: 5f339192389f76568c8fe1ef1fb0ad5952667c39619bbead9d88c6ab352e3614
font_01_sfnt_off00006f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4A 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00007aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA2 7580 bytes
SHA-256: 9cae3abe84eca5451f8005577bffdf3bba3944ae7f970841d19029bf170c7f6c
font_03_sfnt_off00008f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F38 10596 bytes
SHA-256: a20e4825b0a6b5f3686c3796bbe4516dadbb897c748df6eb5e9e04ddae6efde2
font_04_sfnt_off0000b341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB341 4288 bytes
SHA-256: 82a475d54f1ac4f4b79df4a2b0b07a3bb6a2820f1362e6a1cf6c66109ce6f229

Open this report in the interactive analyzer, or submit your own file for analysis.