Malicious PDF — malware analysis report

Static analysis result for SHA-256 558a3b3d017d9a48…

MALICIOUS

PDF

83.2 KB Created: 2021-04-07 02:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 35701faf4157e62a8c35447f4db1c90b SHA-1: 66e418dd9880d057840853898325c23a8b244d3f SHA-256: 558a3b3d017d9a48b0ead688f97e9db78cbddfe7576a074023b362173cd6c41c
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/123?utm_term=mitsubishi+alternator+repair+manual PDF link annotation
    • http://bit7.top/pedukilerejavubumm59r2.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/Ajjhib7/dovalizedajudazefavol.pdfIn PDF document text
    • http://thrivewebs.com/design_patterns_in_java_course6tabp.pdfIn PDF document text
    • https://cdn.sqhk.co/pepupiribojo/chdDian/avg_pro_apk_mirror.pdfIn PDF document text
    • http://meetchat.space/what_does_rout_demons_meanqctu3.pdfIn PDF document text
    • https://cdn.sqhk.co/pasovevutuvi/igejbjc/smurf_village_game_online_play_free.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/hfH7AP4/meaning_in_webster_dictionary.pdfIn PDF document text
    • http://ryukzak.digital/nordictrack_a2105_manual227xs.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/eTibmM4/wild_bloody_marys.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/b7dc1250-0eca-4233-97de-e1391b4e2f7e/mepoxemopako.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/85343491116.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/11625955883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12110f54-2edc-48f4-9116-72b48a9e5d95/tesomaxuramadobonuseve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7148678f-8c10-4756-afeb-664a8c2a1029/trigonometric_identities_quiz_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30367a44-a714-4b3b-a161-d2f37e757393/ge_monogram_fridge_ice_maker_not_working.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6e54818-cc4c-4c47-b345-443e35949291/history_of_modern_art_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b727c4b7-06a1-4f04-8122-b70c32d213a3/46125587112.pdfIn PDF document text
    • https://s3.amazonaws.com/popilo/aditya_music_songs_free_temper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb9633b8-ec71-45e1-b648-04df2db717dd/69128304857.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/descubre_1_workbook_page_24_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b138aa02-e8d0-4984-81c1-c2dafb44a2e9/battlefield_of_the_mind_devotional_joyce_meyer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ef5c272-bc3b-48ac-84e5-aaf6f0bba290/mudegox.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_off000109e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E2 5204 bytes
SHA-256: 53eee6bb9ba22c6272467a0319b6a43edf40735e6ae3fbe6e2d775602ad21caf
font_01_sfnt_off00011b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B6C 10620 bytes
SHA-256: 2e553d012388b0ef9ae8a1fe09ff8cc47837e2fb81a4ee555bcc24baf5272d5a

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