Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e68ab9e2ebe2d8c…

MALICIOUS

PDF

76.5 KB Created: 2021-02-16 14:04:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: da2d087830a888052ac48b4833792202 SHA-1: 362ba7eddb8050a060767e61a414c480d81dbc5f SHA-256: 8e68ab9e2ebe2d8ce50a1e12351a84e64076d47c4d5f99f1cdf942f3b51193fa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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
  • 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://leonvi.ru/aws?utm_term=husqvarna+240+price PDF link annotation
    • https://nexuragero.weebly.com/uploads/1/3/4/7/134751893/703120.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/fmhjEja/92780678608.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/eajigeF/31917525321.pdfIn PDF document text
    • https://gitujibexilen.weebly.com/uploads/1/3/1/4/131406430/wakagi.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/ejiIbjc/rock_hill_mountain_bike_race.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500877/normal_600e24dcf34eb.pdfIn PDF document text
    • https://cdn.sqhk.co/bomoxale/jnhfie3/among_us_wallpaper_innersloth_iphone.pdfIn PDF document text
    • https://disadaniti.weebly.com/uploads/1/3/4/4/134463451/1100306.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/MBagchd/influencer_marketing_jobs_chicago.pdfIn PDF document text
    • https://cdn.sqhk.co/wifepodilojo/jgjapWH/carpet_bombing_2_final_assault.pdfIn PDF document text
    • https://wiselorasen.weebly.com/uploads/1/3/0/7/130739143/7872425.pdfIn PDF document text
    • https://vufoduvetuf.weebly.com/uploads/1/3/5/3/135302170/wewasi_lefopuja_fumelufa.pdfIn PDF document text
    • https://cdn.sqhk.co/lodikorep/RVgdZmm/sisters_movie_songs_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409798/normal_5fc7ec242a7f0.pdfIn PDF document text
    • https://cdn.sqhk.co/lojavowi/2yhgqgD/777_casino_schweiz.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/kokesatodixon/bobuxoridexutagexiwigipe.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/zukotisipexipibaladazo.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/judosegoxozezijadaxapup.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_off0000ec47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC47 5404 bytes
SHA-256: b965a3ed2513a842c3c78f4e957ad57871453b2ebca5be3e438f4404ad79171c
font_01_sfnt_off0000fec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC9 11348 bytes
SHA-256: 9ff36f2d3bc6f46e427a840ba76b1bd841106f42a2b2b56ba6d1fd9693c5a363