Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9e0db5645d27b71…

MALICIOUS

PDF

77.7 KB Created: 2021-02-08 20:13:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 1880d2e3056506afb5221667133e50ad SHA-1: e8341f8463f313ede40642a6278f1b2f7a20348b SHA-256: a9e0db5645d27b71866ed6408429816990ac39f73c406e365289c241cdfee196
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable domains and are associated with link farms, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'Midsommar free online watch', likely a lure to entice users to click the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/123?utm_term=midsommar+free+online+watch PDF link annotation
    • https://cdn.sqhk.co/xubupigegi/hcOqvja/kong_arcade_free.pdfIn PDF document text
    • http://reduslimitalia.website/naxeninolovelebutuvunixtj5x.pdfIn PDF document text
    • http://sawotawigusewon.22web.org/prompt_noun_form.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/a9122af56f21f33.pdfIn PDF document text
    • http://reduslim-shop.site/shoot_down_meaning_phrasal_verbpotha.pdfIn PDF document text
    • http://mishgen.com/absolute_rc_heli_simulator_unlock_all_apkoi7km.pdfIn PDF document text
    • http://rusakova.space/kifajokotixuralcg649.pdfIn PDF document text
    • https://cdn.sqhk.co/gupimupiset/Ufhcia5/nigijil.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/megabex.pdfIn PDF document text
    • http://wonnaturila.space/60867038485yer9y.pdfIn PDF document text
    • http://allieshouseofhope.com/bizufajajajapisajejezu0bygu.pdfIn PDF document text
    • https://zowololo.weebly.com/uploads/1/3/5/2/135294949/furufima.pdfIn PDF document text
    • https://vadutebo.weebly.com/uploads/1/3/4/8/134889136/6471197.pdfIn PDF document text
    • https://cdn.sqhk.co/zubuwebofe/egjliaX/action_hero_biju_malayalam_movie_online_free.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/bambukat_full_movie_mp4_hd.pdfIn PDF document text
    • http://wadopipojadali.iblogger.org/10909063275.pdfIn PDF document text
    • http://zoneeuro.pro/52618865304gqv1r.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://pazatirademe.rf.gd/linen_sheet_set_bed_bath_and_beyond.pdfIn PDF document text
    • http://tuwafexom.epizy.com/cambridge_ielts_6_test_3_answer_key.pdfIn PDF document text
    • http://dutagewenurodub.epizy.com/bomgar_admin_guide.pdfIn PDF document text
    • http://zijipowatik.epizy.com/76746319095.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E3 5148 bytes
SHA-256: d6e9ba40e63d145980db4efbf698cb4d03ebb003179c56c16a32e4c9c7a5e378
font_01_sfnt_off0000f545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF545 11760 bytes
SHA-256: 550ab767575476890590f0f21e173fb0ac30e9fe64aef5e3ac3abdeaf3cc7dd9
font_02_sfnt_off00011b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B9C 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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