Malicious PDF — malware analysis report

Static analysis result for SHA-256 29527129cad905a8…

MALICIOUS

PDF

84.3 KB Created: 2021-04-05 10:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 0b944d941c6189626a5b9f63c5d79304 SHA-1: 2d886f1e1f8dcfe07ed7260cc68896d9ff80ae17 SHA-256: 29527129cad905a80e5bbf4747f8a4d1bec5f4a1c7354ac91c7d2854687593e1
96 Risk Score

Malware Insights

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

The file is a PDF containing obfuscated text and an embedded URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL likely serves as a lure for a phishing or malware download attempt, disguised as a game mod APK.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://seumenha.ru/wix?keyword=zgirls+3+mod+apk PDF link annotation
    • http://crysety.xyz/banyan_tree_information_in_tamilivgw9.pdfIn PDF document text
    • http://uose.xyz/567359066882on3.pdfIn PDF document text
    • http://deutschebank-meine.com/flowchart_symbols_and_meaning_pptlcfs5.pdfIn PDF document text
    • http://fitnesspack.net/putekowogewezisitokzd7h.pdfIn PDF document text
    • http://lipejilun.iblogger.org/platform_shoe_outfits.pdfIn PDF document text
    • http://teasmall.space/guidelines_contrast_induced_nephropathyrbs4t.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/low_income_subsidy_income_guidelines_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/14526059947.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b51214f9-d2cf-4995-b1d2-7a9e1fa27e41/what_do_spine_numbers_mean_on_arrows.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/major_battles_of_wwi_worksheet.pdfIn PDF document text
    • http://netozovozuze.rf.gd/mycbseguide_app_class_10.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/biochemistry_stryer_8th.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84dfb021-9c46-441e-80f6-68844562fab2/35376419590.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/blockchain_programming_tutorial_python.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/zuzivuduvenap.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/jelakedabis.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/33942020311.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/vubatozododu.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/wifi_hotspot_software_for_laptop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/ruzewanijatuma.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/tencel_sheets_for_eczema.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE13 2952 bytes
SHA-256: e211f2d6e0d1bf1fd17bd5150bc2724fb7c0f1d37b1c69b855d9dcad8de34ab0
font_01_sfnt_off0000f8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A1 5464 bytes
SHA-256: cf7a29ac0163e54d8c2a04f5cc82f6e3699450d7c7dcfb16696dface0a2809ae
font_02_sfnt_off00010b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B1E 5756 bytes
SHA-256: a926e53cf306cfbf84b7e56e2b664eda823dded13bc417f632ceb300b3af4571
font_03_sfnt_off0001198a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1198A 12764 bytes
SHA-256: 0efa9b3169013629ab48a2d51572b7b794f3bafdd6ac01c7246842176da9c95c

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