Malicious PDF — malware analysis report

Static analysis result for SHA-256 68fb3b7a18320e4d…

MALICIOUS

PDF

70.3 KB Created: 2021-01-29 14:18:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 90bc5c02ffc8c970226366b254ac6e46 SHA-1: cb82891af316710b68470a2dcdd654d89c67443c SHA-256: 68fb3b7a18320e4dd213ef4eab3f36a188793fe8a008cdaf11ffdee6ecd3e1c0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://druttle.ru/aws?utm_term=o2+tv+movie PDF link annotation
    • https://xelewutoritawi.weebly.com/uploads/1/3/1/0/131070131/zinigu-rokipojuxow-pomorowumitiji.pdfIn PDF document text
    • http://vir-tus.com/igo_primo_maps_europe_freel12k1.pdfIn PDF document text
    • http://padlamadla.site/54463646380fjp3b.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/Xjjgirl/horizon_lite_driveaway.pdfIn PDF document text
    • https://bufodenoziro.weebly.com/uploads/1/3/4/5/134585066/b4f7e86fbf68.pdfIn PDF document text
    • http://stavki.link/happy_face_daycare_jersey_city_njqqoqi.pdfIn PDF document text
    • https://xitapazutirubej.weebly.com/uploads/1/3/4/8/134882608/292b3f728516.pdfIn PDF document text
    • https://bivufinemena.weebly.com/uploads/1/3/1/3/131380184/f49c1046c3ef0bf.pdfIn PDF document text
    • https://kekoweditolig.weebly.com/uploads/1/3/2/6/132683085/4033960.pdfIn PDF document text
    • http://dektesheff.xyz/test_de_canales_de_aprendizaje_para_nios6ysq8.pdfIn PDF document text
    • https://cdn.sqhk.co/pinebiven/Rihhcgg/robot_boxing_robots_fight_ring_battles.pdfIn PDF document text
    • http://sun-italy.space/guvinimojimifurcsq1v.pdfIn PDF document text
    • http://tiktokfrance.fun/fortnite_galaxy_skin_costumed16ng.pdfIn PDF document text
    • https://nebuxegakox.weebly.com/uploads/1/3/4/4/134404726/6311792.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepezip.epizy.com/caladium_bulbs_planting_guide.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_off0000daec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAEC 4532 bytes
SHA-256: 6c3326441604fb7dc12efc6a718bce0021770044830218ed1534ec5b6d2c9eb8
font_01_sfnt_off0000ea54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA54 10100 bytes
SHA-256: f3b33e6f16ae6caab09f5209deafbdb0d3bc9f6b00d006ac1e3be8be1c90c7fe