Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a715e00d812ab75…

MALICIOUS

PDF

93.5 KB Created: 2021-03-21 03:18:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3a9e38e9fafaf62149b0a5da693f8460 SHA-1: c6430b0062e2d984f36a92628b39f7639f2662bc SHA-256: 8a715e00d812ab75115a54eaf1bf7432f926cce4fd0d4bef4a767d23f3f14760
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains metadata suggesting it's a generated PDF, likely designed to redirect users to malicious sites.

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://golowaki.ru/award?keyword=asterix+e+obelix+italiano+pdf PDF link annotation
    • http://podarokinsta.online/patuman9rt0s.pdfIn PDF document text
    • http://raisinshq.club/tijosav0tcdg.pdfIn PDF document text
    • http://tixshopclub.space/forevededevi5iup8.pdfIn PDF document text
    • http://jowakemanek.iblogger.org/zarutavaxumanakaka.pdfIn PDF document text
    • http://websporizle3.com/195738007255rw5j.pdfIn PDF document text
    • http://mapukapol.iblogger.org/bruchrechnen_mit_klammern_bungen.pdfIn PDF document text
    • http://raisinsapp.pro/663510823011bolw.pdfIn PDF document text
    • http://lunamawel.22web.org/wixax.pdfIn PDF document text
    • http://nunesop.scienceontheweb.net/words_meaning_in_english_to_urdu.pdfIn PDF document text
    • http://organicnu.info/bazatejakotutegl2jo.pdfIn PDF document text
    • http://deflecfcvy.best/82771656673b3q9x.pdfIn PDF document text
    • http://aycotoro5.xyz/best_planet_fitness_locations_nycfslyp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zekakodususebu.epizy.com/94880166205.pdfIn PDF document text
    • http://jatugeset.atwebpages.com/bojuragamavel.pdfIn PDF document text
    • http://tarusuja.epizy.com/what_is_the_textbooks_definition_of_mass_media.pdfIn PDF document text
    • http://gigivixegaxun.epizy.com/yooka_laylee_impossible_lair_achievement_guide.pdfIn PDF document text
    • http://fokelele.epizy.com/brinkmann_smoker_gas_grill_combo.pdfIn PDF document text
    • http://duxepivol.myartsonline.com/biscuit_cookie_and_cracker_production.pdfIn PDF document text
    • http://nonosolagosev.epizy.com/nujasiresofizive.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C8A 5020 bytes
SHA-256: a545e33f4c908d21d803e3b186dce69e0c588587f384ca4033ec01d8fd5d336e
font_01_sfnt_off00012d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D9A 14000 bytes
SHA-256: c1f16c8276dd36ab770bd634cf56aa4c7d2a0ad9da43a1f23fb23592888bdeef
font_02_sfnt_off000158c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158C0 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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