Malicious PDF — malware analysis report

Static analysis result for SHA-256 102c259a4c7cd643…

MALICIOUS

PDF

70.0 KB Created: 2021-03-05 06:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 128fbda83eb07e5b328c36ec678cda48 SHA-1: 1ff60c16a4bca9e0a949fc27373e21be107e7145 SHA-256: 102c259a4c7cd643e211d816f2f5391a6c1628d40eee9fac5b805dd05d4a9870
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://golowaki.ru/award?keyword=what+are+some+examples+of+codes+that+can+be+sent PDF link annotation
    • https://xisofapetuv.weebly.com/uploads/1/3/4/7/134747578/916e6c0.pdfIn PDF document text
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/bemawetule.pdfIn PDF document text
    • https://cdn.sqhk.co/nepasibuta/jgehdnK/pijoritopobufaw.pdfIn PDF document text
    • https://cdn.sqhk.co/letopoto/Shjf2YU/92386999820.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/Hhdic9u/bexaboxanod.pdfIn PDF document text
    • https://kekisuganuzab.weebly.com/uploads/1/3/4/7/134721312/d7f6d.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/Kjgghjc/tujarekivigisotidan.pdfIn PDF document text
    • https://cdn.sqhk.co/wutalididow/ijgijcq/29278511360.pdfIn PDF document text
    • https://cdn.sqhk.co/mivesumor/J9hex4p/microgolfoven_combi_krefel.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/ifChjgj/alien_shooter_game_online_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zubixola/jBRgckt/bokulilefebiri.pdfIn PDF document text
    • https://zuveravovizopow.weebly.com/uploads/1/3/0/9/130969477/zinelixe-memawipuda.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/uhg2Yhd/acer_4gb_dual_core_desktop_computer.pdfIn PDF document text
    • https://pakowojazawari.weebly.com/uploads/1/3/0/7/130775116/3631067.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/ribR4hh/dr_phil_soundboard_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e841ae1-200c-4145-8564-a6f5af60efb8/jojizajobarusuwejaf.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/army_commando_battleground_survival_game_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/prakruti_banavasi_english_books.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/assistant_commandant_upsc_syllabus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35e0bfc5-b16d-4695-a658-70bd5a90a9ef/novupodirufesolafiwawire.pdfIn PDF document text
    • https://700ceb37-22d2-47c5-9888-d858af679aee.filesusr.com/ugd/c345b0_8248130ae6c3407c89ff479db1952a5f.pdf?index=trueIn PDF document text
    • https://c6f55193-7475-4343-97dd-33cb3b141b6a.filesusr.com/ugd/808d8c_4f59d0f1264746c9b496239689a6cf63.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/11002297366.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4af73ad6-bcf5-4f80-a7f5-922c52a06883/gitudexed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57806ca6-5e4b-4b74-999d-a0ab6fa8affd/dan_brown_books.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_off0000d433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD433 5616 bytes
SHA-256: a56a469435404991783cffcf94ff9d1514f273dba92b6808395bf4f80599a1f8
font_01_sfnt_off0000e72b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72B 10280 bytes
SHA-256: ce91ae9d397a18a6d8a0057fe2118550b8b75112c817733fa49b1092e7e04276