Malicious PDF — malware analysis report

Static analysis result for SHA-256 78894173982d738f…

MALICIOUS

PDF

80.1 KB Created: 2021-03-31 12:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9b94e9eee534c1174725d5a7c2c4747 SHA-1: 7fbffc284d349440d593a19de3f4a67a93b0418a SHA-256: 78894173982d738fc3e6bea2c29c22ae22ee6d327b0ca0afc7ee17e9ce3bb689
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to search results or document access.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=zoo+pals+utensils
    • https://navijaxilof.weebly.com/uploads/1/3/2/6/132696044/9587233.pdf
    • http://wewofif.scienceontheweb.net/80650316643.pdf
    • https://cdn-cms.f-static.net/uploads/4443354/normal_6010f78d4318d.pdf
    • https://cdn-cms.f-static.net/uploads/4426812/normal_601de10412b91.pdf
    • http://instapriz365.site/versa_lite_not_synchingbs6r4.pdf
    • https://cdn-cms.f-static.net/uploads/4367656/normal_6043bf69d0c02.pdf
    • https://cdn-cms.f-static.net/uploads/4489993/normal_601a74bb07db6.pdf
    • http://afracheat1.xyz/official_leave_application_formatxju3d.pdf
    • http://zoompol.xyz/jenogufuzitegifuzinuvgrnv1.pdf
    • https://cdn-cms.f-static.net/uploads/4369772/normal_605dccca9c7ec.pdf
    • http://garant-ritual.online/book_of_lamech_of_cainnjpwk.pdf
    • https://nigoriwidoke.weebly.com/uploads/1/3/5/2/135296580/58332a37ddaff.pdf
    • http://adminhalil.com/ninarewi2s832.pdf
    • http://idealslim-ordina.site/what_is_jumper_dresssexns.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vilumepidiwego.myartsonline.com/human_anatomy_and_physiology_lab_manual_13th_edition_free.pdf
    • https://uploads.strikinglycdn.com/files/57c231e1-a724-4fb8-885b-23b03bb90655/song_of_fire_and_ice_book_6_release_date.pdf
    • http://limoxukuk.atwebpages.com/2004_6.0_powerstroke_engine_wiring_harness_diagram.pdf
    • https://uploads.strikinglycdn.com/files/508eb52d-8e9d-46c2-84ec-449dfe4ea9d2/windows_rotate_display_hotkey.pdf
    • https://uploads.strikinglycdn.com/files/3c55cd89-dcdb-4454-a643-ec6469812707/perfume_book_brief_summary.pdf
    • http://gakilasefit.myartsonline.com/30819068234.pdf
    • https://uploads.strikinglycdn.com/files/76d059e7-ad9a-49a3-ac61-ca3bc5a880dd/97021350125.pdf
    • https://uploads.strikinglycdn.com/files/3a450393-b6ad-4e79-aa25-3ae82d9368f5/11090599540.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb10.bin
534df042e8aff3bfcff4ba97b735782f0a20d7bbde950251176533b9146b1830
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB10 4676 bytes
font_01_sfnt_off00010b0c.bin
c343cb0307d3aefc01ea851d4667d305224aba0f6d2d0871bc691f5fb6794539
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B0C 12332 bytes