Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc9185ae9c869b7…

MALICIOUS

PDF

72.5 KB Created: 2021-03-17 21:03:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 073578c420970363097bde36634cfae9 SHA-1: c39cf3e92748964a8d5b1b89a042ef65b88d57ea SHA-256: 9cc9185ae9c869b78864ccc1a55825666a848956f818b2bde3cdf6e58ae13e06
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable or suspicious domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are characteristic of phishing lures designed to redirect users to malicious sites.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/wix?keyword=guide+gear+portable+folding+hammock PDF link annotation
    • https://cdn.sqhk.co/wejagamewo/gignRdZ/zebuderovijel.pdfIn PDF document text
    • https://cdn.sqhk.co/kawabewiwof/WBhjpaf/toy_of_war_game_download_for_android_ppsspp.pdfIn PDF document text
    • http://ladunosim.sportsontheweb.net/58608997829.pdfIn PDF document text
    • https://tafakonedazi.weebly.com/uploads/1/3/4/8/134896847/a8e79254606a.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/the_practice_of_statistics_5th_edition_chapter_7.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/3008899.pdfIn PDF document text
    • http://wamipivifubape.sportsontheweb.net/whirlpool_french_door_refrigerator_not_cooling_properly.pdfIn PDF document text
    • https://bilugiwunifi.weebly.com/uploads/1/3/1/4/131408415/4385763.pdfIn PDF document text
    • https://cdn.sqhk.co/fezajuwu/erviigi/50932783272.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/thallus_organisation_in_bryophytes.pdfIn PDF document text
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/453647.pdfIn PDF document text
    • https://cdn.sqhk.co/wogebebaruro/ibCeRKD/lafomubobukax.pdfIn PDF document text
    • https://kemumapuvepuvi.weebly.com/uploads/1/3/4/3/134311950/jejaxebokiwud.pdfIn PDF document text
    • https://mijezuri.weebly.com/uploads/1/3/0/9/130969422/rodevug.pdfIn PDF document text
    • http://durebemidiges.getenjoyment.net/fajokekakoboxifopabirubul.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/sasufufa/how_do_i_reset_my_samsung_galaxy_tab_4_to_factory_settings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6004a9fb-d71f-4e91-a265-51eaea18b8a1/what_is_inclusion_in_a_childcare_setting.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/best_macd_settings_for_swing_trading.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6af5bd52-caf6-4954-8ae6-0875980eeae5/can_you_order_a_new_remote_for_a_roku_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97aa1d32-e8c2-4094-9852-7ceb36c681de/paper_mario_origami_king_how_to_make_fire.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB7 5628 bytes
SHA-256: 86ddb89dfb747e06de4856f512e0abc7659d1cbe5ec9394ec18b1c921d85af16
font_01_sfnt_off0000efb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB1 10348 bytes
SHA-256: 8466a08b5bf538a1ddde59222a060d3f03e0638e86c1ea8f3331bd0c9745895e

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