Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d0577195e98a593…

MALICIOUS

PDF

94.9 KB Created: 2021-05-16 00:21:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: a707a03f61885a1f8d0132ef571d9f13 SHA-1: 9c79dd65232f9426f3337016b1a3dcb8aff6cf04 SHA-256: 9d0577195e98a593132f7fabab335c96524b5e374733f0cb88ad3208e1ff66c6
184 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8153

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.
  • 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
  • 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://kuzutuzo.ru/strik?utm_term=ejercicios+resueltos+de+estadistica+para+secundaria+pdf PDF link annotation
    • http://cadenalia.com/guide_for_ice_scream_horror_scaryrl01t.pdfIn PDF document text
    • http://yachts-4-sale.com/how_to_rehab_ac_joint_separation6tw5j.pdfIn PDF document text
    • http://lusuwivaw.medianewsonline.com/48232688524.pdfIn PDF document text
    • http://mail-autoscout24.net/80479435709ky7z6.pdfIn PDF document text
    • http://budokudepa.scienceontheweb.net/bushnell_neo_xs_golfuhr_update.pdfIn PDF document text
    • http://confirmationhelpcenter.com/what_is_philosophy_of_realismnqymh.pdfIn PDF document text
    • http://sportplays.ru/siminorogegatupol29mfl.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/347bed3d-9c0e-4c1b-8dc1-fbd1afa39eef/how_many_flat_stanley_chapter_books_are_there.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e9d8464-757c-45f7-b99c-7cce5b7d7bb2/what_is_the_best_pool_heater_for_inground_pools.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc88c320-bb0f-4f16-b164-a8ba5d010781/sony_str-dh750_iphone_app.pdfIn PDF document text
    • https://c1e70603-6ca1-47bc-880b-b60d7d434995.filesusr.com/ugd/df625d_a5c307a49fc7432aa2d705b29ccff4dc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3c0ae67-bc95-4144-9ecd-16779b55e9b6/where_is_the_garbage_disposal_reset_button_located.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/48428374631.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/nelly_dilemma_audiomack.pdfIn PDF document text
    • http://tonavisuma.onlinewebshop.net/boer_goat_farming_business_plan.pdfIn PDF document text
    • https://6cbe2f5c-748b-4bc6-b691-25a968a47885.filesusr.com/ugd/d6b5da_15619582393c48ea963c0466f0f2890c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e434543-c07f-47ab-8505-c96f356ce925/gekoseti.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/dodazegitavul.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/chainsmokers_songs_free_pagalworld.pdfIn PDF document text
    • https://592908bf-dd96-48cc-88d9-ffebbdd10d84.filesusr.com/ugd/f34823_678e994f8fb540cda36acd50ca4081b7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/landforms_printable_worksheets_for_kindergarten.pdfIn PDF document text
    • https://27475d5a-2981-497d-8cd5-0c310ef10f8b.filesusr.com/ugd/9cb927_8c1182e9b4584f4cb71f12755a9d11e5.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001368b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1368B 1648 bytes
SHA-256: 5dd67d50d5f82c6a4396cc2c4f535bff9b7bb2931f69234bba48d77275ef921a
font_01_sfnt_off00013ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ECC 5180 bytes
SHA-256: 657d13887b6aa7e345999782f96d0771a514cbe19266f8750e7bea73662db63e
font_02_sfnt_off00015080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15080 12276 bytes
SHA-256: f03d43bf25d0b27a1a86dbb47b33032f7349ebd8e397abdd9360f2a74d2aca91

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