Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3d760ac8e5e63f…

MALICIOUS

PDF

145.1 KB Created: 2020-10-28 19:56:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: acd632bbf82f7a8360ff7bdc82aba575 SHA-1: e26872d8db5bc1e67e35104dbde99fcc6fd86899 SHA-256: 0e3d760ac8e5e63f381c019bc6e5f22c7c96440dbf7613a1f31de540391084f6
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to a URL that appears to be part of a link farm. The document body, though heavily obfuscated, contains a URL that matches the redirector link. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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/123?keyword=leadership+in+the+senate+worksheet+answers In PDF document text
    • https://viziwebaf.weebly.com/uploads/1/3/3/9/133999863/ebe34.pdfIn PDF document text
    • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/dafine.pdfIn PDF document text
    • https://talowitutujuf.weebly.com/uploads/1/3/3/9/133999148/3797912.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/9152b872-100a-4cb3-9627-226606ec82eb/escape_40x_level_35.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/6571/3055/files/nenovudim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/thermo_king_v200_installation_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/772f7cf5-6c5b-46a3-9343-548fb19095d6/77817208107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1111/2601/files/tratado_metodico_de_magnetismo_personal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e455f42-7e66-423b-a26d-9a1f89558fbe/wugibujosofovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5976129f-b2e7-46e3-a68e-244c42386121/41203331471.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/alkaloids_extraction_from_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6163/5991/files/29597262172.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06ad41c4-f5dc-4ad8-a3d5-e4d4e3837250/76181755534.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8059ec47-b4be-4841-94d0-c726d7ec78fa/roxefake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20e169bf-d943-4b1e-b2b1-f909a819a62d/sobenot.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/decatur_county_schools_facebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a716fdf9-790b-4233-b478-cfa844548c32/nidawirinabakogalex.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/jefofavelagulosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3210/7937/files/70445708137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/4550/0065/files/10629573818.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/zujesarifikozifusuzodare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba41fc7f-a657-4646-8eda-e901527e2a2b/cbro_aimbot_script_2018.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001f1a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F1A3 4900 bytes
SHA-256: c395ac7b9423d7c264e55618ee7a8c0025edd424ba8b1c2f715a707655b17c7b
font_01_sfnt_off00020251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20251 11152 bytes
SHA-256: 200e19eadadffa94ecabd40195c9083597938e97011425783727cc683173bee7
font_02_sfnt_off000227b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x227B4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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