Malicious PDF — malware analysis report

Static analysis result for SHA-256 8685582e179304c0…

MALICIOUS

PDF

69.0 KB Created: 2021-02-21 15:39:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6ae031637963f9814a2d0215bbc3fb2a SHA-1: b8a9850df5346b7d2c277163ec86c7a54bae763e SHA-256: 8685582e179304c093be0d40a6c1f1cbae82c8056fa819103953b2366a79385e
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 0.9998

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://jacksth.ru/wix?keyword=reader%2527s+digest+new+complete+guide+to+sewing PDF link annotation
    • https://cdn.sqhk.co/bepotedaxus/aiehehc/funny_clip_tik_tok_video.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456686/normal_5ff26d8f2ebc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380084/normal_5ff5bd9c2dd79.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/hjgbgd0/ez_pay_credit_card_processing_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/dofofoziga/jhjgjgd/funny_animation_movies_2018.pdfIn PDF document text
    • http://monogawuw.iblogger.org/baxebirebaxel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366949/normal_6010771c43a54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496404/normal_602e6e562d378.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/kesumasaka/43742616296.pdfIn PDF document text
    • http://pubatamelobu.rf.gd/wings_of_desire_english_subtitles.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/xumopi.pdfIn PDF document text
    • http://jepisaf.epizy.com/filehippo_compressor.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/gidoduxumaguvatefapulel.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/gif_facebook_app.pdfIn PDF document text
    • http://xobofob.rf.gd/role_of_chaperones_in_protein_folding.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/vobisadumimajod.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/hydroponics_and_aeroponics.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/20286885996.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC404 5408 bytes
SHA-256: 15e5df850cc365aaab8765a7f313892ad0acc381d586cd51bbb2c6b4e9f2c992
font_01_sfnt_off0000d66b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD66B 9884 bytes
SHA-256: 2d9d864d6ffb1fded247495a2d99fe1ced3149b9b9c524b3c4d94e3dae331cd4
font_02_sfnt_off0000f834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF834 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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