Malicious PDF — malware analysis report

Static analysis result for SHA-256 d69462287b763cc6…

MALICIOUS

PDF

45.8 KB Created: 2020-10-29 16:30:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a9df5bf0b2b0c709778f6e5e343e9d3e SHA-1: d6d92123eef9b51a37015d0103b3e8c64a9b11f4 SHA-256: d69462287b763cc62195a28e2b9d25cca97f7dd4d2a172e3a79d9ff5cd28e598
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and 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 1.0000

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.club/123?keyword=what+is+a+swap+space+operating+system In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367312/normal_5f94cd704f924.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/rozin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f8d37331c6d4.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/livefoze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f876412b21b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_5f88421df2281.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/78017249-4c1e-48a3-8664-42db445ab495/tv_furniture_design_catalogue.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/angels_in_america_tony_kushner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/946b25c5-269e-45c6-a877-f3f10d17c898/45945434498.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/22757920130.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/viroxurarozawexafipajasa.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/vixeromagimir.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunoje/pathfinder_drow_noble.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/46259469345.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_off000067c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C6 5312 bytes
SHA-256: ba00220d4b4363b6b54c7ab3aef55ca8315c216ef88a875f273e518680aa6d73
font_01_sfnt_off000079bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BD 10104 bytes
SHA-256: 424c4165ed211d9562641f541c433505fa078a27141846f209dc2b603996c52c
font_02_sfnt_off00009c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C54 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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