Malicious PDF — malware analysis report

Static analysis result for SHA-256 f916205b9d1b88bd…

MALICIOUS

PDF

72.9 KB Created: 2020-12-04 05:08:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 25ba6685e69e718e2fd31f21a9d8a38d SHA-1: 42fdd1963736c9364f713276c4afb8e2a889a837 SHA-256: f916205b9d1b88bdb26e368321d80617956af24a9b631afd0f6e0785b63d5e6f
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://cctraff.ru/aws?utm_term=sherlock+holmes+season+5++with+subtitles In PDF document text
    • https://musufofijadora.weebly.com/uploads/1/3/4/8/134888277/desijilow_fuzugetibaveso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386074/normal_5f9c421001d01.pdfIn PDF document text
    • https://vatalinonabalix.weebly.com/uploads/1/3/4/2/134234662/5051091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376088/normal_5fbf484b7a81c.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
    • https://uploads.strikinglycdn.com/files/ea87cd6b-d487-4304-9bff-36bc61a0f92b/26785340453.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5359940f1034a5cc50b70/t/5fc971efcc00d445e1026fde/1607037424316/21767120319.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/bowers_and_wilkins_formation_bar_wall_mount.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/643c97c4-2b15-437b-acf7-63f43702a68d/zucchini_bread_paula_deen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb900037-6ec7-4fb6-a413-aa14c9b98dff/jigegawupodezomil.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4976fa04221c71166c8b/1606371703597/gaston_county_schools_virtual_academy.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/vudumirawe.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b80b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB80B 5560 bytes
SHA-256: 491db4108ba1fa4de9072deaccaccee6f094078643ea5395980711c7b4dca15f
font_01_sfnt_off0000cadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCADD 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000d635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD635 9528 bytes
SHA-256: 8ced161d5ef502e8f99c7dc1f8b814980de92cae143230f6a2896c7d7e917322
font_03_sfnt_off0000f110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF110 10824 bytes
SHA-256: f71d346efb0bc0783cf7e58be077165153027436f9e208ab8c1421a0aaa07ba2

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