Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a68c07d24a19826…

MALICIOUS

PDF

78.3 KB Created: 2021-03-06 08:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0004dd73e700ccc3b915ca3c8bd843f5 SHA-1: 7f32305db7177c30def6b12aea41628cf909717f SHA-256: 2a68c07d24a19826abf49775560eb636551bce9b34fc63b06692b05553261620
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains numerous external links, with one prominent URL suggesting a phishing or SEO spam lure related to an 'iPhone 5 owners manual'. The presence of embedded PDF links and the overall structure point towards an attempt to redirect users to potentially harmful websites.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=iphone+5+owners+manual PDF link annotation
    • https://kupelaranix.weebly.com/uploads/1/3/4/7/134729830/03545.pdfIn PDF document text
    • http://soldatskaya6.ru/53238263828nuzue.pdfIn PDF document text
    • http://sollabs.xyz/doorking_1835_parts2susb.pdfIn PDF document text
    • http://questotzvezd.space/alter_ego_3_cd_audio_classesotyy.pdfIn PDF document text
    • https://vutavevivusupe.weebly.com/uploads/1/3/0/7/130776898/gopamatipefuj-gisegatugojedi-lobexow.pdfIn PDF document text
    • http://shopsmmv.site/sijapisuniwibowisofom93385.pdfIn PDF document text
    • http://idealica-ufficiale.site/bomb_jack_2_tam_ekran_oynawgv7z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5a98ae10-8c7e-48da-b83f-9bcbc644cfa3.filesusr.com/ugd/9a8764_ae9849b2d3784f8ab3669706c5147291.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vazisi/3836255021.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/how_to_identify_a_breed_of_dog.pdfIn PDF document text
    • https://469ee322-798e-4c1d-9571-af6764901f97.filesusr.com/ugd/57169b_ca8a0e5a4ec7483c9c142fdca738026e.pdf?index=trueIn PDF document text
    • https://bf23b77b-49a9-4bef-a898-a03cfb94aefa.filesusr.com/ugd/134172_e455b8d6dd264e4ebf1a33a6607fbc45.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/animated_sad_video_songs_free.pdfIn PDF document text
    • https://123949be-7110-4ba3-a240-a7df06fb38ce.filesusr.com/ugd/80fd5d_81653ab51310402388ee54795300a4a8.pdf?index=trueIn PDF document text
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_712e2efba69646e1ba8e8aeed1a5ef96.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/eulogy_templates_for_brother.pdfIn PDF document text
    • https://34e223d5-b18a-4f89-96b3-7c58aa965d90.filesusr.com/ugd/440e29_719797a1465c496bba6c5b8b318311dd.pdf?index=trueIn 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_off0000e972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE972 3724 bytes
SHA-256: 59701ab6f1a8c012dd8ec870d317e4651c2abf9fe53e1fa5cdcb5946a55c7908
font_01_sfnt_off0000f6af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AF 5212 bytes
SHA-256: 04760c57b0f719cc144d5e91c85dde1db4c6e75a69d9aa54296132470c5dcd9f
font_02_sfnt_off0001084f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1084F 10320 bytes
SHA-256: fc559b785ca8ad9379a9de12ce94e80e219126343cca20ac3bfdaaba13a591e2

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