Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd14a88e5414e91…

MALICIOUS

PDF

152.1 KB Created: 2021-06-14 07:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30fc6655a4231fbba50e9872745d8bb7 SHA-1: c242399e56784ac7e0b4a984f6b4e3b4a1e8e072 SHA-256: edd14a88e5414e91fb3cb8f8a2cdfbe1414401cf56bb6060518a79b162a2c908
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://oniceh.ru/pbw?utm_term=studying+the+new+testament+through+inscriptions
    • https://balixilime.weebly.com/uploads/1/3/1/3/131398392/8756067.pdf
    • https://pasironukid.weebly.com/uploads/1/3/0/8/130814081/4357017.pdf
    • https://cdn-cms.f-static.net/uploads/4473035/normal_600b8f5925fc7.pdf
    • https://cdn-cms.f-static.net/uploads/4384460/normal_6055f1c325d98.pdf
    • https://sijanobodebalu.weebly.com/uploads/1/3/4/6/134639398/b099a4e.pdf
    • https://cdn-cms.f-static.net/uploads/4454820/normal_60492f8c5f139.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wiliser.pbworks.com/w/file/fetch/144466383/10.snf_karmlarn_ayrlmas_test_sorular.pdf
    • https://uploads.strikinglycdn.com/files/57b67583-74b2-4ba0-bccb-a081250ff01c/the_motorcycle_diaries_streaming_vf.pdf
    • https://uploads.strikinglycdn.com/files/17ecf55e-b998-430b-bdd9-b7308f2da2ee/an_american_childhood_by_annie_dillard_p._241.pdf
    • http://xewubisil.pbworks.com/w/file/fetch/145284819/nile_valley_civilization.pdf
    • http://ravowibosu.pbworks.com/f/lon_capa_physics_mcmaster_answers.pdf
    • https://uploads.strikinglycdn.com/files/454661b9-b0be-4bfd-af78-f29211cd8e06/15492668525.pdf
    • http://noxiwako.pbworks.com/f/12636929559.pdf
    • https://uploads.strikinglycdn.com/files/c93c7d3b-3943-4445-bd26-1f65bc52e842/whitfield_pellet_stove_parts_diagram.pdf
    • https://uploads.strikinglycdn.com/files/ef7978c3-5fd2-486f-931d-350926330bcd/95957689117.pdf
    • http://jujirafamena.pbworks.com/f/the_whisper_destiny_2_mission.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_off00021799.bin
5258c5da1ec63deb52265327000fce649a3d06438aca508c902ac0ae67a922bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x21799 5752 bytes
font_01_sfnt_off00022b1b.bin
8fbf0a68e887fbbbb6731d82fb09cf75584b3e4f768502a557fce2e4379ee458
pdf-font-stream PDF embedded font (sfnt) at offset 0x22B1B 12044 bytes