Malicious PDF — malware analysis report

Static analysis result for SHA-256 390ce18ceed892eb…

MALICIOUS

PDF

82.7 KB Created: 2021-03-30 07:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65a5418bfbdf871f9a068621fa4b2fed SHA-1: 519a8415e8eb7af6c678ed5773f1c8d596d82ec7 SHA-256: 390ce18ceed892eb6f58d4c2fa3e028641a74c1f8949122972c1a9d9ac236292
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. Heuristics indicate the presence of external URIs and a high likelihood of maliciousness based on ML classification and ClamAV detection. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Amparo davila arboles petrificados pdf', suggesting a phishing attempt to direct users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://dafemum.ru/award?keyword=amparo+davila+arboles+petrificados+pdf
    • https://cdn-cms.f-static.net/uploads/4407996/normal_603eb876db33f.pdf
    • http://vafenofu.22web.org/tafopubujakaguwebiboxuw.pdf
    • http://juvizex.sportsontheweb.net/curse_of_the_crimson_throne_interactive_maps.pdf
    • https://cdn-cms.f-static.net/uploads/4392647/normal_6039b9d3eb422.pdf
    • http://mofazenina.22web.org/rabegaredolagop.pdf
    • http://lozipazom.sportsontheweb.net/56422483562.pdf
    • https://cdn-cms.f-static.net/uploads/4370062/normal_604e7e38ae5b8.pdf
    • https://static.s123-cdn-static.com/uploads/4393883/normal_5fc6b824ddaa5.pdf
    • https://static.s123-cdn-static.com/uploads/4479446/normal_5fcad7103815f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/519b6d85-4fe2-4349-993d-8255f3a65460/how_to_write_a_really_good_rap_song_in_30_seconds.pdf
    • http://pekamidakoj.atwebpages.com/que_es_una_composicion_artistica_bidimensional.pdf
    • https://s3.amazonaws.com/lorugipopuxe/5638975093.pdf
    • https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_3de78cf8a7f44450ab2bf8a8cf453aa4.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5ae45e66-cd05-4f33-b7b9-2d17bd3f0afc/what_is_a_gap_and_go_strategy.pdf
    • https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_2a8214ec91d34571ac955b086b48f18f.pdf?index=true
    • https://s3.amazonaws.com/remufuzu/43880189406.pdf
    • https://uploads.strikinglycdn.com/files/79d28ebc-56b8-49d8-91b5-965585e9c544/mupajewozifexepuw.pdf
    • https://a8a2d6b8-6248-42a0-90a4-e25e421c2e59.filesusr.com/ugd/f63f29_e70aa2fe391f4d30bd468d595663b245.pdf?index=true
    • https://uploads.strikinglycdn.com/files/62eb937b-4344-48e1-8fae-e233908f7f0e/motu_ultralite_mk3_firewire_windows_10.pdf
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_d3f5d5a21e834291914a4fc14248c60d.pdf?index=true
    • https://0aa989e7-076c-475f-bc22-fff5ae310860.filesusr.com/ugd/b44be6_697f24044d194ecf82854494df04b512.pdf?index=true
    • http://bumunosusub.epizy.com/poe_blight_towers_guide.pdf
    • https://uploads.strikinglycdn.com/files/f5bf5bdf-1270-41b5-8875-d3ba0b2cc17e/rijobubaporoje.pdf
    • http://lofunadex.myartsonline.com/alveolitis_humeda.pdf
    • http://risitikavaj.rf.gd/xuzejawifagujokubadir.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f694.bin
2c718ccb1069d0aa98e7671f6c4968606af5efc5494f1cfca87e61b4f44dad17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF694 5172 bytes
font_01_sfnt_off00010824.bin
ba418e7c278f20ac71cf949646eceeac09ec720a8e23756fa4f1b406c1c70c66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10824 11468 bytes
font_02_sfnt_off00012d7a.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D7A 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.