Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce3b212282b23cf…

MALICIOUS

PDF

34.0 KB Created: 2020-11-05 09:05:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3467e4a460898309eea78869db07dd96 SHA-1: df3d5522faba459a5ea11c93fa60e87504a64437 SHA-256: 7ce3b212282b23cff1dcde92096105d1ab897bfe1516ff9563e379e24fa17546
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a common pattern for delivering malicious content or phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://gettraff.ru/aws?keyword=septa+r5+routes+map
    • https://wuxepufoz.weebly.com/uploads/1/3/4/3/134371519/jojadifegud.pdf
    • https://fekanefitogi.weebly.com/uploads/1/3/4/3/134340372/juwisusenulu.pdf
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/zonufuju.pdf
    • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/91c26abd5657b.pdf
    • https://cdn-cms.f-static.net/uploads/4367687/normal_5f98776b88c20.pdf
    • https://jazaxalik.weebly.com/uploads/1/3/4/4/134488577/3da0a2.pdf
    • https://cdn-cms.f-static.net/uploads/4393041/normal_5f9a2f09577fd.pdf
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/zanadutut_wexudafenatogun_jetomefoja.pdf
    • https://nubagusajol.weebly.com/uploads/1/3/4/2/134235051/lukedotatarug-mosovanabefuxe-letiwasijemos-volibexujetoso.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ff7f026f-2d6e-4199-aebb-05c42c8591c3/komagij.pdf
    • https://uploads.strikinglycdn.com/files/456ff1c7-9f49-4bd4-b8fa-78ed2b1b17d2/ferokupito.pdf
    • https://uploads.strikinglycdn.com/files/7cb447a0-52a9-4145-b9c3-d237419cbd09/31971948967.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004804.bin
ee149cdcfacbc627bc33da3ac2f562e2ff48671d539779e7c58cf510c26e6af8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4804 5160 bytes
font_01_sfnt_off00005977.bin
cd9c4a283b4261b708e6ed4383c2a57a50cc3406646d3c7e483bc4ee415a92f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5977 9916 bytes

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