Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f6863fa383d29d…

MALICIOUS

PDF

65.6 KB Created: 2021-03-07 19:25:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 755d98ba197455e1487e62bd9b42a4ef SHA-1: 7901d6e90fc72add7ad57585834af89ddd1fd64f SHA-256: 49f6863fa383d29d23b414f5f619c94cc556ff0552e4b72b941fe4df220dcafe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=how+to+change+alarm+code+vivint PDF link annotation
    • http://delinapod.mypressonline.com/vukuvozavupisajaxira.pdfIn PDF document text
    • https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/wajetagi_lusor_zabezenumov_tuxuloguje.pdfIn PDF document text
    • http://fifonugimexa.22web.org/32903768956.pdfIn PDF document text
    • https://xudowiwigikit.weebly.com/uploads/1/3/4/4/134462868/9d5b54a6e238d5a.pdfIn PDF document text
    • http://gimemuwet.mypressonline.com/death_in_family_out_of_office_message.pdfIn PDF document text
    • http://puliliraforuwu.22web.org/zuvavukemu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cc6d8859-fc08-4100-a073-55b48c5addfc.filesusr.com/ugd/238140_e380b9a588bc4000a11656659d63d061.pdf?index=trueIn PDF document text
    • https://c6f55193-7475-4343-97dd-33cb3b141b6a.filesusr.com/ugd/808d8c_26ff92ffc5d740538a3d8aa6a7047b0f.pdf?index=trueIn PDF document text
    • http://vizawog.epizy.com/rocket_propulsion_derivation_class_11.pdfIn PDF document text
    • http://nalirabagetovop.epizy.com/67900289933.pdfIn PDF document text
    • http://sinalowus.epizy.com/boss_baby_wallpapers_for_android.pdfIn PDF document text
    • https://ff743420-c5e2-4527-a456-70ddb2a1abd8.filesusr.com/ugd/5178f2_2f4fae5ca3704fb6828a7fdc9d9a11bc.pdf?index=trueIn PDF document text
    • http://junebipizazob.epizy.com/busawunububenimonos.pdfIn PDF document text
    • http://zinipuzotekum.rf.gd/gegixidosurifofirusuz.pdfIn PDF document text
    • http://vagilamiporaw.epizy.com/10460408213.pdfIn PDF document text
    • https://1e16f6d7-285b-4488-bf07-d3e24ac90e20.filesusr.com/ugd/417718_a79ce4afcef1424b9bafc78221ba302c.pdf?index=trueIn PDF document text
    • http://wikidupuzok.epizy.com/jemaxewadofi.pdfIn PDF document text
    • http://difiwawi.epizy.com/auxotrophic_mutants.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_off0000c50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC50B 5288 bytes
SHA-256: 254e3e76e8c407aef9fe8b6a26e449999011b98407d5d0fd8d9554d71ffefc56
font_01_sfnt_off0000d6f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F2 10148 bytes
SHA-256: 760cc2bf61405a52711d2805eb80000efcd2bc6b28598dddec50b1ff30ce24d3