Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd18e3089291be4…

MALICIOUS

PDF

74.5 KB Created: 2021-02-28 07:26:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7b9cab8aefd3041b6229cf9811270460 SHA-1: a2862c6c6e298f223ec095eccec970126d6f48a8 SHA-256: 0fd18e3089291be4c3d190198d63da2da269b857b46b4e57bebbca9cd9d14907
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains multiple external URIs, with a primary focus on a URL related to a "coin generator" for the game "Pixel Gun 3D". This suggests a phishing or scam attempt to lure users to a potentially malicious website. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://gimoguvi.ru/wix?keyword=pixel+gun+3d+coin+generator+no+survey+no+download PDF link annotation
    • https://gowobokibisalo.weebly.com/uploads/1/3/0/9/130969305/6475949.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/T2je2ie/vawopawukokuxovekobuduxo.pdfIn PDF document text
    • https://cdn.sqhk.co/fajaleniwa/bK7f6Lw/hd_wallpaper_cruise_ships.pdfIn PDF document text
    • http://freedate18.xyz/capitalization_worksheets_with_answersj9myr.pdfIn PDF document text
    • https://xulazipilo.weebly.com/uploads/1/3/5/9/135958699/4008793.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/what_is_better_f_2.8_or_f4.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/9008332634.pdfIn PDF document text
    • http://favuloxodi.iblogger.org/creative_certificate_template_psd_free.pdfIn PDF document text
    • https://xefulexemifin.weebly.com/uploads/1/3/1/3/131398452/lefowipabudiji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wenares.myartsonline.com/where_can_i_get_breakfast_burritos.pdfIn PDF document text
    • http://wizigipixe.atwebpages.com/40674069727.pdfIn PDF document text
    • http://japusorusepex.rf.gd/85207883555.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_off0000e4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C2 5596 bytes
SHA-256: c6f81534508be7388eb7553f8978fc267b3d12e8bbda2760e5e669f46873f140
font_01_sfnt_off0000f7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F2 10808 bytes
SHA-256: 46b5064849c4f1961d6e62208f69e8e03e13b092a7838277d6a1cdeabf591b53

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