Malicious PDF — malware analysis report

Static analysis result for SHA-256 73c6126089156879…

MALICIOUS

PDF

66.5 KB Created: 2021-02-16 18:40:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d37e05e919be4a72036f077abe1755e3 SHA-1: 3147e927516f4b6e542cac214af2a1647c7786e3 SHA-256: 73c6126089156879ae2f041ed94b37ddb0417797ffc203f8ef07ef8ebaf40599
146 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=buy+here+pay+here+lancaster+ohio PDF link annotation
    • http://drilltech.info/bauman_amor_liquido_espaol8382d.pdfIn PDF document text
    • http://winoorama.site/tufelewuvitivajajopuma871mx.pdfIn PDF document text
    • http://lukosewikaj.22web.org/46768978737.pdfIn PDF document text
    • http://ampinternational.org/one_punch_man_season_2_blu_ray_vizwlyi6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407749/normal_60086002c4be3.pdfIn PDF document text
    • https://cdn.sqhk.co/kosifodalab/Rbohfhh/tyrion_becomes_lord_of_casterly_rock_fanfiction.pdfIn PDF document text
    • https://kenufipafalenar.weebly.com/uploads/1/3/4/6/134616414/4361689.pdfIn PDF document text
    • http://mini-cam2.club/zebuniwidozutugineseteth239p.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/gfhcngh/fox_sports_go_apple_tv_without_cable.pdfIn PDF document text
    • https://cdn.sqhk.co/bipokagiti/i8HMzgd/rulenimowemafajo.pdfIn PDF document text
    • https://cdn.sqhk.co/safubuguva/ic7hbif/41779480733.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/gjgi6H6/crash_test_dummy_video_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rarezutawuwelam.epizy.com/legetubotopifu.pdfIn PDF document text
    • http://setiwol.epizy.com/69255139930.pdfIn PDF document text
    • http://datasixiva.epizy.com/bl_blend_words_worksheets.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_off0000c7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D2 5172 bytes
SHA-256: 7f02b05141372c6bee691fb2b34e0ca097dfa45f1ccbe33d13bf89dc53eabf17
font_01_sfnt_off0000d96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96C 10556 bytes
SHA-256: 1dbf4c1a2ef47daa1db4bca1d37242a253803baa8e422a6fc34998187fbf2a50