Malicious PDF — malware analysis report

Static analysis result for SHA-256 17474c323375059d…

MALICIOUS

PDF

85.2 KB Created: 2021-01-26 21:05:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 2d48deb6bd79c4f050b552eeb247b2f2 SHA-1: b9e481fa1290c7ca3ce1354eefc741596bf99d65 SHA-256: 17474c323375059d0800defe38c2fbb52df140a3ab79e6a1e14cfbd802a6fc1d
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to disposable domains, which is characteristic of SEO link farms or phishing lures. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • 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://druttle.ru/123?utm_term=field+and+stream+rut+report+apple PDF link annotation
    • https://zuwukozoxuwiged.weebly.com/uploads/1/3/4/7/134713444/kodenewimejigawol.pdfIn PDF document text
    • https://kumupesefutevun.weebly.com/uploads/1/3/4/4/134463509/c646061976a7.pdfIn PDF document text
    • https://cdn.sqhk.co/gobonuzuwif/YKMuQhi/jerorekilus.pdfIn PDF document text
    • https://velalozelo.weebly.com/uploads/1/3/4/4/134498802/19a3673.pdfIn PDF document text
    • http://palejep.22web.org/49776731179.pdfIn PDF document text
    • https://zuwexonoporij.weebly.com/uploads/1/3/5/3/135317719/3c85da0e2c23.pdfIn PDF document text
    • https://zazatetapez.weebly.com/uploads/1/3/0/7/130739704/9308606.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/ie2ifid/2_player_co_op_games_ps4_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/dapubebireba/hhJxNgd/vanity_planet_aera_ionic_facial_steamer_amazon.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/perrines_literature_structure_sound_and_sense_downloadcxv25.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/sefipa/subject_and_predicate_sentences_with_answers.pdfIn PDF document text
    • http://janofegiwene.epizy.com/zegigameguxizekuveko.pdfIn PDF document text
    • http://salivokeru.epizy.com/audiobook_not_ing_iphone.pdfIn PDF document text
    • http://zabesawafusoxa.rf.gd/final_countdown_orchestra_sheet_music.pdfIn PDF document text
    • http://bedekopezedegej.rf.gd/cat_voice_song_video.pdfIn PDF document text
    • http://volopupe.rf.gd/occupational_hazards_in_dentistry.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/betugoni.pdfIn PDF document text
    • http://xukenefurirog.epizy.com/urticaria_causas.pdfIn PDF document text
    • http://favekagopu.epizy.com/nc_durable_power_of_attorney_long_form.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_off000111cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111CC 5060 bytes
SHA-256: 698915fdb50e8f51e98ce0918532f7d8bb9d2b1cef9c7c58d3891b385439c2aa
font_01_sfnt_off000122e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122E8 10592 bytes
SHA-256: caf412c6f1f336a5dd041a014a84a10f0f7479abaf9761fa4748d2a3d868559a

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