Malicious PDF — malware analysis report

Static analysis result for SHA-256 e44e12d67fee6ac6…

MALICIOUS

PDF

275.4 KB Created: 2020-12-19 12:12:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 04d01344ab7df7e4e6820d1f6d311597 SHA-1: 8a9dd6292ddb900780adf6ed2fcaa6b12a3677a9 SHA-256: e44e12d67fee6ac6167920046169681249ed14165fc5d2949abd79acb0f9bda1
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_UTM_REDIRECTOR_LINK heuristics. The document body, though heavily obfuscated, suggests a lure related to 'Anker soundcore headphones manual', likely intended for phishing or malware distribution. The ML classifier and ClamAV detection further confirm its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 5

  • 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.
  • 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.
  • 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://traffine.ru/aws?utm_term=anker+soundcore+headphones+manual In PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/cc537b7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375890/normal_5f89b2289e74f.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/kovixu.pdfIn PDF document text
    • https://fitaveseraf.weebly.com/uploads/1/3/4/4/134448243/4a77d02.pdfIn PDF document text
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/5035536.pdfIn PDF document text
    • https://fezuxikazosulav.weebly.com/uploads/1/3/1/3/131398093/9928535.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421214/normal_5fbc2cb66ab40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473916/normal_5fb7618428a65.pdfIn PDF document text
    • https://saniruguroxi.weebly.com/uploads/1/3/4/5/134585545/e91ceb1d12475.pdfIn PDF document text
    • https://titumakusijuvap.weebly.com/uploads/1/3/4/3/134353199/778622.pdfIn PDF document text
    • https://tivaxuxilo.weebly.com/uploads/1/3/4/1/134131375/bf3ef315fb42.pdfIn PDF document text
    • https://sozivawar.weebly.com/uploads/1/3/4/5/134511290/nalokatetejukit.pdfIn PDF document text
    • https://bajusumuke.weebly.com/uploads/1/3/2/7/132741128/6891120.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D8E0 3180 bytes
SHA-256: e81f6e4b3ffe3090f9f4cedaa20fac18580cc05f02a78e506e35f6f62e0eb30c
font_01_sfnt_off0003e45d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E45D 5368 bytes
SHA-256: bf31489dcb555469cc0a3269fad3ccdb96e738410896da6239e421ead91b3b6c
font_02_sfnt_off0003f675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F675 27008 bytes
SHA-256: d54458e15aa078dcbcf119805e7fa14329f0afe7051f04f44c079e619f54eae6