Malicious PDF — malware analysis report

Static analysis result for SHA-256 7577b43114610e97…

MALICIOUS

PDF

72.1 KB Created: 2021-02-25 13:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 2d47f8a42c05c5112e4ad4f653a43337 SHA-1: 1cabc47e725986fa842011e75866707ac15781ac SHA-256: 7577b43114610e975822853669e932544102ef4688971d1c80e6830c1ae66e43
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site or download a payload. The document body, though heavily obfuscated, appears to be a lure related to remote control programming, which is a common tactic for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=how+do+i+program+my+philips+universal+remote+to+my+sony+tv PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483856/normal_5fdea2976d59e.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/kipuxijagi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373770/normal_602afa80caf56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414491/normal_60054e88c5a80.pdfIn PDF document text
    • http://blue-tick-central.com/bemofobajdjlbf.pdfIn PDF document text
    • http://kyukty68.xyz/10406451570ggo5x.pdfIn PDF document text
    • http://gratoraama.website/liwutisukipirol895pk.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/a_long_obedience_in_the_same_direction_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379230/normal_5ff9184831dbc.pdfIn PDF document text
    • http://alisabor.design/definicion_de_horda_gens_clan_y_tribuc1hd7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466367/normal_5fc978c99c07c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459166/normal_5fc74d7f81e4a.pdfIn PDF document text
    • http://letekidela.iblogger.org/forixi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saxodanokijaj.atwebpages.com/how_much_should_i_charge_for_writing_a_500_word_article.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/mockingjay_part_2_release_date.pdfIn PDF document text
    • http://dizavinizekabos.rf.gd/magic_tricks_book_in_urdu_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/free_printable_symmetry_worksheets_grade_5.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_off0000dd9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9E 5588 bytes
SHA-256: 4ee8210c73f69770278498f4bd92000f1d5b4fc45fe88be03c901824e7f40ea6
font_01_sfnt_off0000f08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08A 9956 bytes
SHA-256: 4532272bba84e3b421ec698d9d6c272c1f43dc8cea699016ec01f98cb60308af

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