Malicious PDF — malware analysis report

Static analysis result for SHA-256 8879489f547ef7f6…

MALICIOUS

PDF

204.7 KB Created: 2021-02-28 14:40:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8eed72e3bafbd0076c23814250f982e9 SHA-1: 901ad9f8d98159a46032333fcf1505864f3a1299 SHA-256: 8879489f547ef7f68c759d14fe353c7f932ebe0177e06f97750032c92f8ff4ba
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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/wix?keyword=angel+quiz+answers PDF link annotation
    • http://presentinsta.online/63356679260ks75u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389797/normal_5ff862ba13b43.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445735/normal_5fe20c61a16bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464083/normal_5ff4e12387cad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484122/normal_600a18a34740e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374024/normal_5fcc28c9f18f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462339/normal_5ff666aa2df52.pdfIn PDF document text
    • http://servempieza.site/nunagazametilodupisexxmck.pdfIn PDF document text
    • http://azalea.store/xavepomenemonotemea77au.pdfIn PDF document text
    • http://just-gopro.com/integrate_sin2x_cos_x_dxa507r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425229/normal_60201c5601c65.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485176/normal_5ff340cb95714.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371023/normal_60091e3932784.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/tesla_model_3_long_range_0-60_after_updateww4x3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_6035359cdec4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408993/normal_5fd33830ae4e8.pdfIn PDF document text
    • http://top-shop-store.website/ansible_tower_setupfpzdn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/debiwelof/24129443025.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/aosp_android_pie_rom.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/oak_laminate_veneer_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/gravol_davis_drug_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002df84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF84 4800 bytes
SHA-256: bf2aafbee7c321f6384594738b3c70728f559e819c8e33442a355156fb955b8b
font_01_sfnt_off0002efe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFE9 11328 bytes
SHA-256: c32659f4d891c768aaac63ff4679aea6fe39cbab2886b97e0dc73c6d37c92dbe
font_02_sfnt_off0003166e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3166E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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