Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba29dcffa02b6591…

MALICIOUS

PDF

73.1 KB Created: 2021-03-20 16:56:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 93ad7091be1c20f5bcc3f6329ac6f2f0 SHA-1: efb778564aa65bf5169f0c636988d283bcbc0132 SHA-256: ba29dcffa02b6591406ac7e9f7668927f411572c4a8e1593e9ed6549f831e3e9
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external links, with a primary link pointing to 'https://mezovuduw.ru/wix?keyword=force+diagram+worksheet+answer+key', suggesting a phishing or content-luring attack. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, further supporting the malicious nature of the document.

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://mezovuduw.ru/wix?keyword=force+diagram+worksheet+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381766/normal_601f738dcff73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408596/normal_60259c1ce1571.pdfIn PDF document text
    • https://donurufeto.weebly.com/uploads/1/3/4/8/134898164/junafade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487888/normal_6048538db3b6e.pdfIn PDF document text
    • https://jasenumuruj.weebly.com/uploads/1/3/5/3/135309327/xaxiramoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392660/normal_600caa000c1f4.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/rimejiguvif/due_to_factor_on_balance_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c330e5a5-6f26-4866-9632-83b205cbc51b/complete_fighters_handbook_3.5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01c69c5b-6084-452c-89af-e740f04fd9ac/tonegadikutis.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/soundcloud_er_android_2015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b53786f7-9442-4665-a0a1-305e097a48f2/romeo_juliet_full_movie_tamil_hd_print.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/sefagezifevubozibaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e11bd68f-04ca-468e-a05f-64256d0eaad3/thule_venture_3-bike_trunk_vehicle_rack_suv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc3d6e4e-0eca-4f5a-b9d0-075538ec4e4d/what_is_computer_class_11.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f90d72f0-bb07-453b-b9ad-10acde0a0c68/wogugezexuduk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfdbda77-e884-4639-85f9-d6815da76daa/bosezatukane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e372eda-8734-4865-8e99-174e6aa8d363/caloric_gas_stove_replacement_knobs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11847284-2a73-4784-81f5-740ab3f5e850/book_of_secrets_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b824a9a2-76f1-4e4e-a6f1-d7ed335672e8/diwetiwefusizatuwome.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_off0000dedc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEDC 5532 bytes
SHA-256: 85c44bd4c6aebb8476c7445da081c09a1c324368bcbf960a08cc6861b23af609
font_01_sfnt_off0000f19f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19F 10952 bytes
SHA-256: 6475c455d644b2efafb70df5a372b9a89c2141e37c075d3f5b04858159c2feba

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