Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef68ee0c4e0f6d0…

MALICIOUS

PDF

71.0 KB Created: 2021-03-04 06:19:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4e57fea73e42864476176b179d7513a4 SHA-1: 65bd21c5e294966c8b08e867f036d0516e277983 SHA-256: 2ef68ee0c4e0f6d082f97e9c0d58a8e36213cb2c7ea92b645163e21b4bfdc62e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://xezojetit.ru/wix?keyword=apk+for+ios PDF link annotation
    • http://gratoraama.website/32086077444fwm8i.pdfIn PDF document text
    • https://fajuvupo.weebly.com/uploads/1/3/5/3/135310445/safebawifefog.pdfIn PDF document text
    • http://chunyoo.com/sezizaxusimebagaxauy4wm.pdfIn PDF document text
    • http://flipping-car.online/jarafidekanu8hfy.pdfIn PDF document text
    • http://losinglotterynumbers.com/manual_jupyter_notebookqefqe.pdfIn PDF document text
    • https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/fobevojurenu-majorode-sovutafuwe.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/3958496.pdfIn PDF document text
    • http://jilet2.club/galatians_bible_study_guidea3x0n.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://fizuxobitunoge.epizy.com/color_my_world_flute_sheet_music.pdfIn PDF document text
    • http://muzozilijef.epizy.com/anemia_de_falciforme_tem_cura.pdfIn PDF document text
    • http://xukomaro.epizy.com/zalenibuvosuda.pdfIn PDF document text
    • http://gedikoti.epizy.com/excel_vba_workbook_select_sheet.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_off0000d062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD062 4192 bytes
SHA-256: 87f6ee60f83e629a04f208bcb3fcb7dd6b2c6135e905eac8f8370fa5485b461c
font_01_sfnt_off0000de96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE96 10184 bytes
SHA-256: 64bc9391eb8654486c7b798c9df830e9d9a9731b5d2e93d7be8b1de0ee11c2d8
font_02_sfnt_off00010182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10182 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34