Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b57646745b3c7c…

MALICIOUS

PDF

81.7 KB Created: 2021-03-15 07:28:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 04c5ed984cc136e7ad21fbec0f3c0a6c SHA-1: f26a1c0d706b715286e12e046c711ab2cdf79d4a SHA-256: 12b57646745b3c7c226dca8279f4d6aafdf4c211b01b4462505238d48a418385
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a primary focus on 'soxebez.ru', suggesting a redirection to malicious content or phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and URL patterns are consistent with malware distribution or phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/wix?keyword=ff14+chocobo+feeding+guide PDF link annotation
    • http://xagowawusik.66ghz.com/malaysia_tourist_map_guide.pdfIn PDF document text
    • http://tinaxugamonow.22web.org/46823893418.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/Pjgf1gj/84650410696.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/ihyDbid/tabletop_simulator_workshop_games.pdfIn PDF document text
    • https://cdn.sqhk.co/nabixisaf/Gjjjesq/54073780549.pdfIn PDF document text
    • https://cdn.sqhk.co/dawadetugas/MhaUB73/s_letter_happy_birthday_status.pdfIn PDF document text
    • https://cdn.sqhk.co/vigamodijek/gSvhwie/logo_quiz_game_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/neruxojus/ighCAib/stickman_dismounting_hack_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/joxusozomilo/hawoQ8m/81538953948.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/Egjfrjc/dave_banking_for_humans_stock_price.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/fupanabivote/pujiborogofifule.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/40688562455.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/whatsapp_plus_apk_v6._50_latest_version.pdfIn PDF document text
    • http://kaguwetu.epizy.com/girinasigupitusawaxawipa.pdfIn PDF document text
    • http://nataxos.epizy.com/85298313840.pdfIn PDF document text
    • http://memanor.epizy.com/what_apps_do_tattoo_artists_use.pdfIn PDF document text
    • http://zovewopot.epizy.com/bengali_dj_nonstop_song.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/42536782615.pdfIn PDF document text
    • http://benifolagalat.epizy.com/aayi_milan_ki_raat_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/5142602142.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4D 5004 bytes
SHA-256: 76d6b23654ffcd70e690b08873072f224993ebd20a342a1476ec9ca59d069158
font_01_sfnt_off0000fb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB61 11668 bytes
SHA-256: 1571774c5f044a938207d856b407a2db46a6e925dd44ff6d7f893ddfad414b7e
font_02_sfnt_off0001226c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1226C 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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