Malicious PDF — malware analysis report

Static analysis result for SHA-256 f94c1ee99a3feec2…

MALICIOUS

PDF

70.1 KB Created: 2021-02-20 20:39:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 964c8c0c2579441c30058b4784da319b SHA-1: 115ee1746e2923fa91991b78baaa0e7d4090bc5e SHA-256: f94c1ee99a3feec20b8840fe58cdd204e9d306619c84105201a8bc3277b14252
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=parallelogram+worksheet+6th+grade PDF link annotation
    • http://xolululumaw.iblogger.org/78384761911.pdfIn PDF document text
    • https://cdn.sqhk.co/tosobulig/ggeVd1J/48330271909.pdfIn PDF document text
    • https://cdn.sqhk.co/pevizopubok/jgf4hfq/45466517873.pdfIn PDF document text
    • https://cdn.sqhk.co/sawapevodef/ijhjibC/image_editor_online_free_no_download.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/fdifhiT/xijuxozizigovefakaretase.pdfIn PDF document text
    • https://mibinataxufix.weebly.com/uploads/1/3/1/4/131438539/fuzepito-fapuviwajokabo-gutegapurozexaw-giduxunoxox.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/legipexadapif-nugisadivi-xuwisapakijud.pdfIn PDF document text
    • https://vedagoxa.weebly.com/uploads/1/3/4/4/134498973/905775.pdfIn PDF document text
    • https://sekojeti.weebly.com/uploads/1/3/4/5/134583019/pezudoxefoni.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/gQ9dsgj/hitman_3_locations.pdfIn PDF document text
    • https://cdn.sqhk.co/bagudivibi/NiejgG2/london_to_brighton_veteran_car_run_2019_photos.pdfIn PDF document text
    • https://cdn.sqhk.co/tibakekavero/fLihqRa/vefexenelopisub.pdfIn PDF document text
    • https://cdn.sqhk.co/mixenezir/gjicha8/garivojajodowil.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/jTuChiM/aspen_heights_resident_portal_murfreesboro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://muloluj.rf.gd/appium_capabilities_for_android_real_device.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/rusobutibokulapiniwizuri.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/62433527408.pdfIn PDF document text
    • http://jigojokupabulo.epizy.com/rixajonimepokumesufefam.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/gutanotumized.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/lerevijizoluxizilora.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/bulleya_song_sultan_karaoke.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_off0000d6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D9 5548 bytes
SHA-256: 8915d691f2a1839d484e7b2fd6a30f600168d1695574c9039d1db0710c95fe03
font_01_sfnt_off0000e99d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99D 9828 bytes
SHA-256: 7145b2ff93d85af06aef4e21651303bd029104943443a7cf89d441eb1de523e9