Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a729a53f1e29a3e…

MALICIOUS

PDF

236.8 KB Created: 2021-04-02 13:00:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2cf0bf61cdf5f13b66d5d36e20bee6a3 SHA-1: 65dc05c7c0f4559773d1f422971cf8af9e0b6c7a SHA-256: 6a729a53f1e29a3ef3a6ea2929c5b4738ce37596cdd1846ccef893a37cca0b48
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'dugedepap.ru', which is suspicious and likely serves as a lure for phishing or malware delivery. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it might be a crafted lure. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9847

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://dugedepap.ru/strik?utm_term=harry+potter+tome+8+date+de+sortie PDF link annotation
    • http://zovunegem.22web.org/sekojugigasabu.pdfIn PDF document text
    • https://roxowuvunesoneb.weebly.com/uploads/1/3/4/8/134889799/gunaka.pdfIn PDF document text
    • https://gebevomipo.weebly.com/uploads/1/3/0/7/130740462/2471171.pdfIn PDF document text
    • http://palovedu.22web.org/givupewulanaxudatixidufaf.pdfIn PDF document text
    • http://sutunir.22web.org/17687499000.pdfIn PDF document text
    • https://dixozetazexode.weebly.com/uploads/1/3/4/4/134472526/960749.pdfIn PDF document text
    • https://zonotilikoper.weebly.com/uploads/1/3/1/0/131071062/9535814.pdfIn PDF document text
    • https://vunisanege.weebly.com/uploads/1/3/0/8/130813420/14a2a560b4863f.pdfIn PDF document text
    • https://vemubofopelo.weebly.com/uploads/1/3/0/7/130776521/3033037.pdfIn PDF document text
    • https://wujibinofowe.weebly.com/uploads/1/3/1/3/131383737/26d36.pdfIn PDF document text
    • https://lumekagaxegi.weebly.com/uploads/1/3/2/7/132712489/vuvagale.pdfIn PDF document text
    • http://wilozobugo.iblogger.org/janaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/64622364-c3a8-47e9-8ec9-769167b202c0/honeywell_thermostat_display_not_working_after_battery_change.pdfIn PDF document text
    • http://midizigikeg.epizy.com/what_causes_phonological_processes.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/99309291925.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/85747266881.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/arua_chaula_duba_new_odia_song.pdfIn PDF document text
    • http://giwokekurodi.rf.gd/dolezofakavi.pdfIn PDF document text
    • http://zosuvupetod.epizy.com/merry_christmas_everyone_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/jomukonefupoxelukibuti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03a8367f-c6ed-439b-9750-98998b2fbb02/new_york_state_map_with_cities.pdfIn PDF document text
    • http://puredaw.rf.gd/applied_data_science_columbia.pdfIn PDF document text
    • http://limizepafut.epizy.com/98750368836.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c432d3f-f5b2-4634-ad2c-2afc3f49851b/breville_juice_fountain_elite_reviews.pdfIn PDF document text
    • http://pobalupusovejo.epizy.com/47363250893.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a0609f5-a9b1-4200-ac26-f740f587fb28/bosidasurixoxizo.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/79628873979.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_off00035beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35BEB 5332 bytes
SHA-256: 6bfd7b52b14e6d4933a9af7a7c543b636623327acc38be60b5937beceffc01ed
font_01_sfnt_off00036df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36DF8 17628 bytes
SHA-256: 0cef50c690bbda5bbe8cbe925739d25ee9a79f85e1c78f47b574bc15fd74b100

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