Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2722def984d1467…

MALICIOUS

PDF

111.5 KB Created: 2021-05-19 00:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 72c26a071f60a47ddf90742a67d05566 SHA-1: c16540df312944ef539d661dbb20621d38565e87 SHA-256: f2722def984d1467ead0b40ff0542ef3c91a45c9212483ca2b0bf121b55365a1
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 0.9995

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://crophysi.ru/strik?utm_term=printable+vinyl+paper+walmart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495846/normal_600213fcf41c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403683/normal_6046030ad8294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490264/normal_603ea860d01bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460042/normal_5ff85aced1a89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367281/normal_6013a19174bf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410447/normal_601ca8e2cf89d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491673/normal_5fdba1639a522.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374211/normal_5fe8cc5d57b72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5fda82814aa2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_602defbbaaa79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480149/normal_5ff14085162d8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/23c79c3e-b9e0-40e0-a630-ac61fd4fbf5f/86900203897.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/wiwumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0da8f3d7-5f2c-494b-9875-e4b0bfc91fba/xogiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e23f7ec-2959-47ff-ba11-0c0d841b7355/97381008760.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/xivodusejepefetolafitu.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/maplestory_training_guide_black_mage.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/alvar_aalto_second_nature.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/fijowowadizuti.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/6420422905.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/free_a-_z_handwriting_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/bed_sheet_manufacturer_in_sanganer_jaipur.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 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001749b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1749B 5180 bytes
SHA-256: df61e3731a3f622c334d1f0503887ed37547973805c23c604609679da8521bde
font_01_sfnt_off0001863c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1863C 12292 bytes
SHA-256: 514ef27a94246b27ad06136ccd1547844979224a35d0811d24acc81236b10d57

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