Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd49d2282af0724c…

MALICIOUS

PDF

70.0 KB Created: 2020-12-09 18:39:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d1b68e6462c0bce6790227a7b5966c6a SHA-1: 9815734561349a628f27ef7be713018e21d9a4c4 SHA-256: bd49d2282af0724c6db5031752499a128a72bb1739426c5b8a9599128c4c3c32
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/123?utm_term=houston+texas+gang+tattoos PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470391/normal_5fae38cf68a40.pdfIn PDF document text
    • https://gefetejumifigo.weebly.com/uploads/1/3/4/6/134688955/200d107b9.pdfIn PDF document text
    • https://nasoluludeg.weebly.com/uploads/1/3/4/4/134435301/nubuki-xukubikifowem-latujefok-wiwezemarozo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390684/normal_5fa82c9cbb077.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/e786208a-f761-4dd9-9eda-c7b1a93d2527/dd_3.5_dragonlance_campaign_setting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ff8c304-1691-4673-9471-59f757455a7e/27017942627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c895b0f-4de2-4e25-b6f7-0ef24e35c3a5/woladamejulomifow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e58e4eb3-e39b-49e4-adfb-d1069041fd47/yugioh_sacred_cards_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/767ac919-5a3a-404c-bed8-963b616de903/20786496944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/919c5be1-c25e-4754-b913-912d821f9692/5807412583.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53e62314-58ca-4f86-a91e-263dd51e887a/pokemon_silver_gameshark_codes_shiny.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d32b85a-d7e3-45a0-a47e-5afb072687ce/pocket_minecraft_how_to_breed_chickens.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/62804294800.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_off0000d52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52B 4756 bytes
SHA-256: 9e8d86d3d8367de0c88dfd73441cdc0e279494039ec045dbb5a6ea41b05a0dfc
font_01_sfnt_off0000e56f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56F 11188 bytes
SHA-256: 3dea19d712e3d5da585966e77fa759bbf9b633eaa345378d4289d7d1510aa875

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