Malicious PDF — malware analysis report

Static analysis result for SHA-256 3353e9777dd54914…

MALICIOUS

PDF

67.2 KB Created: 2020-12-05 10:42:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ad8133525a91dad087bf428a06f85f0b SHA-1: 95f40ab1af1e6c1e53c4e5625bd725809ad03d4b SHA-256: 3353e9777dd54914f5151045378bafad2f9f6733edf2075e86aae0a2af5f49f4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI pointing to 'traffnew.ru' was extracted, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely related to luring users to the external URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/aws?utm_term=autonics+le4s+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405195/normal_5f98d9bc6f898.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410194/normal_5fb2bfe0e929e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dujepav/97457167879.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc66f49a13a450bab1a5f60/t/5fc69c32a97599144ee11a92/1606851635950/73438134878.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/13138182047.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd3cd46e7cdf75b9345dea/1606237399173/circle_theorem_proofs_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c3cd92c50b1a1e76da16/t/5fc54d977acac6192a70f34d/1606765975326/trouble_maker_kpop_song.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0c67848ba205d186e02/t/5fc10182e18c5c478e1f9230/1606484355623/penn_state_grading_scale_percentages.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/63363890473.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55ee89a9-ea18-4001-8f22-23746974c329/17388298269.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ca7740f1034a5ca83b63/t/5fc2822deaf37e3b64edabfa/1606582830237/camera_mod_apk.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0000b3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3FD 4928 bytes
SHA-256: 740999b8f3c13b0932e5d51901288e4d59ad525feea4cefa533819d8c9d679bc
font_01_sfnt_off0000c4b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B8 11192 bytes
SHA-256: fa92cd6b289be34061ce56ecce9cb721176bd65050cb2c5f9e25645476cedd0b
font_02_sfnt_off0000eb29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB29 16160 bytes
SHA-256: 7e63eb3bed9c4ceaf47e86587cf77a789dba98dd2b4db382f0c7f052a0aeb8ce

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