Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd3dab7a5549a91…

MALICIOUS

PDF

87.0 KB Created: 2021-06-02 12:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c58ddd9bf27dd1e45e0ecc907db1c572 SHA-1: 7ca7ef8017c4af4cbb8e5557c486db89c76d176d SHA-256: 2fd3dab7a5549a91f4cf1f745927c7a7c8b64adf56051a9f4643ebd955a2005c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to urban art, attempting to disguise the malicious nature of the link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://garglob.ru/pbw?utm_term=defina+o+que+%25C3%25A9+stencil+na+arte+urbana
    • https://cdn-cms.f-static.net/uploads/4417526/normal_60216ca94a15f.pdf
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5fd105f5ddaf7.pdf
    • https://cdn-cms.f-static.net/uploads/4420587/normal_606018177ede8.pdf
    • https://cdn-cms.f-static.net/uploads/4480397/normal_604838d61c743.pdf
    • https://static.s123-cdn-static.com/uploads/4498345/normal_6005acc243f02.pdf
    • https://cdn-cms.f-static.net/uploads/4486193/normal_5fd33294234be.pdf
    • https://cdn-cms.f-static.net/uploads/4366055/normal_6043fba3cd19d.pdf
    • https://static.s123-cdn-static.com/uploads/4483608/normal_6004e9be243c8.pdf
    • https://cdn-cms.f-static.net/uploads/4420260/normal_600a28377ffea.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/03aee77c-b645-4af9-a330-03c211666065/can_dachshunds_have_blue_eyes.pdf
    • https://uploads.strikinglycdn.com/files/8997d94d-1931-4400-b5eb-3c5db7d30101/fopezoso.pdf
    • https://uploads.strikinglycdn.com/files/b3dcc0ec-2158-43ea-915c-8280271f40dd/33910045304.pdf
    • https://uploads.strikinglycdn.com/files/75f77b70-001c-4dfc-9153-a370e5a00446/turtle_beach_xp400_an_xbox_one_anschlieen.pdf
    • https://uploads.strikinglycdn.com/files/accce511-4ec0-4c66-b095-c38578fc22d7/71087013044.pdf
    • https://uploads.strikinglycdn.com/files/ed60dd86-0cea-4262-8a32-3599a2ff3a93/how_to_calculate_3_phase_kva_from_amps.pdf
    • https://uploads.strikinglycdn.com/files/d44ee634-759e-4bf6-bf29-1ca251c0fc5a/visual_basic.net_2019.pdf
    • https://uploads.strikinglycdn.com/files/c8e8d85c-8d39-4b4e-beb5-5c2b8777739f/how_much_does_the_navy_reserves_pay.pdf
    • https://uploads.strikinglycdn.com/files/bcc39a4b-ff7b-4f4e-95b4-b51484d80181/bidudabimadafofuvinuniza.pdf
    • https://uploads.strikinglycdn.com/files/50c48402-dd3e-4b8d-9b12-9cd750999dc6/realtek_audio_driver_for_windows_10_32_bit_filehippo.pdf
    • https://uploads.strikinglycdn.com/files/2bc346ab-d1cc-489e-838a-962df64adc70/best_digital_marketing_course_mumbai.pdf
    • https://uploads.strikinglycdn.com/files/4f3121f4-1e8f-4c71-997f-7cf2f6e598d0/41921708855.pdf
    • https://uploads.strikinglycdn.com/files/dce8ab33-89d0-498c-9ea9-0fe5ff697f57/feminist_theory_from_margin_to_center_by_bell_hooks.pdf
    • https://uploads.strikinglycdn.com/files/da90ab2d-b0d5-4c6d-b0f4-803b8f5ef9c1/teposeguda.pdf
    • https://uploads.strikinglycdn.com/files/67cbdfd2-e365-4f93-81ce-4b430a9aec57/dogecoin_price_chart_volume.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed5d.bin
3c3a918006a74f65f0d808a0aa6e7116837b6ee91ba9ad80f5649d7c52aa6d9e
pdf-font-stream PDF embedded font (sfnt) at offset 0xED5D 5280 bytes
font_01_sfnt_off0000ff1f.bin
a3237b2f567ae3d43571c4dd13c39bb363a3c8738ffe0b3264dc90022e118f02
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1F 4684 bytes
font_02_sfnt_off0001105c.bin
63335454e2a3efe3e73e222adf7e2d170f13256e178d0992a7960a2d7518b351
pdf-font-stream PDF embedded font (sfnt) at offset 0x1105C 11532 bytes
font_03_sfnt_off000135f8.bin
975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15
pdf-font-stream PDF embedded font (sfnt) at offset 0x135F8 16312 bytes