Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac62620d6cec4c32…

MALICIOUS

PDF

72.9 KB Created: 2021-02-18 17:51:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c08cb0f56d7f56a2586690e257608f02 SHA-1: 705d3d661a0951a00333fc8e00499ddb6463376a SHA-256: ac62620d6cec4c32aedf70b8eb53cc9b1b3ca7176ab925a4765a912640da3aa3
146 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 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://jottigo.ru/wix?keyword=my+gba+apk+1.8.0 PDF link annotation
    • https://gufulesem.weebly.com/uploads/1/3/4/6/134698375/8991000.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502819/normal_6013b149c48d2.pdfIn PDF document text
    • https://xufuluzigi.weebly.com/uploads/1/3/4/2/134266078/xabulomutinu.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/AOhjhiz/mechanics_bank_auto_loan_phone_number.pdfIn PDF document text
    • https://wazaxilam.weebly.com/uploads/1/3/4/7/134726650/cee515a0e11bdfd.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/3fabe1ccfd5.pdfIn PDF document text
    • https://cdn.sqhk.co/mitejapeki/jfhhzgh/vivoku.pdfIn PDF document text
    • https://cdn.sqhk.co/waxigapo/iaDbRhj/64479532608.pdfIn PDF document text
    • https://cdn.sqhk.co/bujutinape/hs1Tg35/44940269821.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/njbNajg/bubble_fish_philly_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wurozuvejesubot.epizy.com/safotategus.pdfIn PDF document text
    • http://pafomotaxo.epizy.com/english_fonts_ttf_free.pdfIn PDF document text
    • http://gaxufaxurawago.epizy.com/36393078693.pdfIn PDF document text
    • http://gusalixofunek.epizy.com/pole_barn_sliding_door_guides.pdfIn PDF document text
    • http://jofanemapax.epizy.com/26683285373.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A8 4736 bytes
SHA-256: 030b655244aced72d0d6a800950a17b16d85484f5d2fdb9527cc9d6184e5faad
font_01_sfnt_off0000e5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CC 10268 bytes
SHA-256: 73ea61af6d48bd3918d2b3bca85191291bfeeb035863ca3dd7e740bde0fae6b9
font_02_sfnt_off000108fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108FC 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378