Malicious PDF — malware analysis report

Static analysis result for SHA-256 9585086fc0170f62…

MALICIOUS

PDF

78.4 KB Created: 2020-12-27 15:29:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e00241a1d2a13c398320fab34b19439e SHA-1: 165874997852f576fb3072fe47876fc20bcc7cfa SHA-256: 9585086fc0170f62694bdc0eeda81fc61a7d9f9dca870d1dab093be628ef05f6
156 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/aws?utm_term=the+future+of+jobs+report+2018+summary PDF link annotation
    • https://wesoxiworikezux.weebly.com/uploads/1/3/1/3/131380467/vuvasitifofopozeji.pdfIn PDF document text
    • https://darojavanobize.weebly.com/uploads/1/3/4/8/134889586/modupamap_zasutukorumep_tutagi_zazulujiruteb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462694/normal_5fb6caf56fb76.pdfIn PDF document text
    • https://zeteparikimifol.weebly.com/uploads/1/3/1/6/131637109/aebbe664bb.pdfIn PDF document text
    • https://pepesavujol.weebly.com/uploads/1/3/1/0/131071240/1e20f483fe1990.pdfIn PDF document text
    • https://dabatipiregu.weebly.com/uploads/1/3/4/4/134435287/wodewuko_tesiwaroj_jubinemimofejek_zokalapizasatu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0a553ec-8698-4720-8dc9-7e5f6c0faea1/lumix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5845d8f4-f691-4af6-924c-4f812fe92dee/dikam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d6ea450-59fc-41f0-89e9-d41742a81113/94435479204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f712c8d9-1948-4e5a-84ab-160bc4c0fa39/14611638245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f476f63a-301f-47b9-bf31-14405f4e6a07/madagascar_i_like_to_move_it_instrumental.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a00f31eb-0b86-4200-a306-3bcc807cc5aa/ect2000_short_open_circuit_detector.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF372 5896 bytes
SHA-256: 368679bbabbd4b54b71d6b9865627c9f632b08e4d675b88b94b19beb63942597
font_01_sfnt_off00010765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10765 11028 bytes
SHA-256: 55af2b5508a7cf3e5fdcf9ec3de5ee60d868d4446cac56f589d389bfe20729f9

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