Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d53f770a4805abc…

MALICIOUS

PDF

69.8 KB Created: 2020-11-30 21:24:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f32a985ea2dfab12ddaa266f278f126d SHA-1: 989fe473106335d438a21b9384574340a510e419 SHA-256: 1d53f770a4805abc2e6c54b00c5dcb351bb3b0d394b6a951325faf365d17aae7
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://traffnew.ru/strik?utm_term=south+willow+canyon+grantsville+utah PDF link annotation
    • https://lufavipipoj.weebly.com/uploads/1/3/4/5/134580953/fewovinamak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420431/normal_5fa44aad98a04.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/lefexoserizemojogi.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/4588967.pdfIn PDF document text
    • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/5b7823edc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388818/normal_5f8e1da65520c.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/682c48ab-7190-4235-a9b5-8e7178773bbc/bimexonapibonebosesugire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f7c50b2-37c5-4c67-aa04-2141e8b1a749/8.2_detroit_diesel_specs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a167cd1e280355df4762/t/5fc3e7a39d79364840060bf0/1606674340892/79329290380.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9a6b907-34cd-498d-811b-f457f549df78/16237923437.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd21d6b08f4a0e85063d15/1606230487035/whats_the_plural_possessive_of_moose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b545a73-a450-48ad-a8e3-cc7f6720fa50/piagam_pbb.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf501761e25426e12f2f28/1606373399521/dinkey_creek_weather.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f6b191a-69d1-43b0-a4ef-f7d60fef08bc/westgate_travel_club_resorts.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd17e732780c533aab1118/1606227944046/juduzetogitede.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc19eb9f7cf8c75403006e8/t/5fc2d4243c6ccf69f3bc4004/1606603815743/wizusef.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD192 5420 bytes
SHA-256: 7b4699daa843bb685ef4e50ede90760f8f58cf0f1163ed75e6d175d59b4ad783
font_01_sfnt_off0000e41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41A 12080 bytes
SHA-256: 167390024057bad62aaee11177ca6824b3335b34b3345721a6b1c8593c414da9

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