Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9790d8d7f9e8327…

MALICIOUS

PDF

69.8 KB Created: 2020-12-23 01:09:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e372eeabc1102e917abe40a944b303b0 SHA-1: 4c41942b657bb3d01c6d0340ff33e5fdb98b1633 SHA-256: f9790d8d7f9e8327047163483b974253f41303a2e0cdfe4320c95cee7b81b335
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 0.9998

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://traffking.ru/aws?utm_term=set+default+parameter+value+in+crystal+report PDF link annotation
    • https://zazafiwizodizi.weebly.com/uploads/1/3/4/0/134041258/5da9bcad128.pdfIn PDF document text
    • https://wesotapaxo.weebly.com/uploads/1/3/4/4/134488604/7526305.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473056/normal_5fa9cba217e3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381980/normal_5fbe91ec1ec12.pdfIn PDF document text
    • https://vatedubajepe.weebly.com/uploads/1/3/4/3/134371970/kiliwog_pifetusag_vimegigowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446930/normal_5fc002e21977e.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
    • https://karawabinu.weebly.com/uploads/1/3/1/4/131453718/1533964.pdfIn PDF document text
    • https://pakezumada.weebly.com/uploads/1/3/4/3/134368128/25f7123d3c3c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489054/normal_5fd84ed4ecfe4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zesotat/kejiguresazoxabogupo.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/talazilod.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/apache_hadoop_linux.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/wovuzafeben.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/fuzejazifefa.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/free_conference_room_schedule_template.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_off0000d0fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0FE 5564 bytes
SHA-256: 6a7af173667df4410c44930aafa95ed4714889c7627586715958f6c8a0a3b1e8
font_01_sfnt_off0000e3e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E8 11272 bytes
SHA-256: 9bb03ca4a5cc0718ec7bbfc1f6199ef73f67fe2e266ea0b0e50eea89193dd24c

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