Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed7149a13411f400…

MALICIOUS

PDF

110.6 KB Created: 2021-02-28 01:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: dedb1ecc3f659e5b23e877b8610bc9a7 SHA-1: d01e10ee3fd6eab10b2a923a67d464431fad4f4a SHA-256: ed7149a13411f400547f23bf97f8e2675808c9280c054dd1f3228b8faf20f673
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many pointing to disposable hosting and forming a link farm, suggesting a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/wix?keyword=phoneme+apk+ksatria+online PDF link annotation
    • https://pafekirikigu.weebly.com/uploads/1/3/4/5/134590200/dezalasuxigo.pdfIn PDF document text
    • http://3bureaureport.info/despacito_song_ringtone_pagalworld98oe8.pdfIn PDF document text
    • https://sivubatololux.weebly.com/uploads/1/3/4/8/134850937/4944334.pdfIn PDF document text
    • http://wapadax.scienceontheweb.net/mijoteuse_crock_pot_smart_pot_instructions.pdfIn PDF document text
    • https://jovigazever.weebly.com/uploads/1/3/1/6/131637362/totinabawujozap.pdfIn PDF document text
    • http://all-system7.xyz/540271933720t3ty.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/4_types_of_informational_text_examples.pdfIn PDF document text
    • http://vnds-super.space/trench_warfare_in_world_war_23caxb.pdfIn PDF document text
    • https://wiwazojuxosupud.weebly.com/uploads/1/3/1/3/131379189/495d16abbe8d9.pdfIn PDF document text
    • http://idclick.cash/how_to_set_up_dymo_4xl_with_paypalfgdle.pdfIn PDF document text
    • https://cdn.sqhk.co/disonixures/PbVgeIn/pojiveninur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sidepojedava.myartsonline.com/likukixevuvisejepironuji.pdfIn PDF document text
    • http://kapirexazi.onlinewebshop.net/how_to_drain_a_sundance_hot_tub.pdfIn PDF document text
    • http://weparaxopulo.atwebpages.com/bogisugeg.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001452b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1452B 4828 bytes
SHA-256: db3746bfa8a7ee7f92d40ba714899d636cfd6fa9bfea1269c191150b5fc7797f
font_01_sfnt_off00015566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15566 5124 bytes
SHA-256: 85b3e9e504e3dda990a1ed0dcf8fa1c3a01012aa05988afabc039b5f1e1adf28
font_02_sfnt_off000166a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166A3 13680 bytes
SHA-256: 30524b8aacacdc9a3591a6d8e083da494aa160d2e92b6bc099e2c2e6ea93f958
font_03_sfnt_off000193ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x193AB 17112 bytes
SHA-256: a69634a565c16a081e56db42a11ec17f20fb515fe74cc36fbfa003023d515283

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