Malicious PDF — malware analysis report

Static analysis result for SHA-256 c370054835b78396…

MALICIOUS

PDF

73.0 KB Created: 2021-02-19 13:37:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 0014b569fed260feb7f072300fd77f07 SHA-1: 32c6cbaa10d3c913ddf86840a8382dec2a9efc9c SHA-256: c370054835b783968aa8767aea0b308ec2dd5ed1fc862d3fdf07449291bf91fc
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to trick the user into visiting a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=kidz+theater+a+chorus+line PDF link annotation
    • http://mx50off.pro/30185830663panql.pdfIn PDF document text
    • https://cdn.sqhk.co/pofoxubo/vThclkh/jemuporavakenugi.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/jM7gfih/carrie_underwood_football_song_2017.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/jc2Nzif/wedding_cake_pics_ideas.pdfIn PDF document text
    • http://salet.store/how_many_carbs_are_in_a_matcha_lattei8dev.pdfIn PDF document text
    • https://cdn.sqhk.co/sesijisova/1c4hjCv/51206501721.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefaxeker/dhJiyhh/22196813109.pdfIn PDF document text
    • https://cdn.sqhk.co/filodomazora/aenD3jg/fighting_star_mod_apk_home.pdfIn PDF document text
    • http://spainwow.pro/aritmetik_dizi_formlleri_lysus9q7.pdfIn PDF document text
    • https://cdn.sqhk.co/koletexun/vecmgje/pupps_rash_not_on_stomach.pdfIn PDF document text
    • https://cdn.sqhk.co/mufipofunup/Vjdichc/tapitetabetamulegise.pdfIn PDF document text
    • https://cdn.sqhk.co/gotirawuz/l5ii5jj/dogs_are_talking_chords.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/project_stakeholder_communication_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/xidiloxodafu.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_off0000e156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE156 5048 bytes
SHA-256: 03c4760b903ae5b7baecdcfcb49a51660fab3856044baafbe3ae26829dff983f
font_01_sfnt_off0000f285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF285 10284 bytes
SHA-256: d161ba6907e548f4b7f76e5b6e3a588ae1f44825477675df33df56817229fb38