Malicious PDF — malware analysis report

Static analysis result for SHA-256 3411bd5672390753…

MALICIOUS

PDF

69.4 KB Created: 2020-11-20 20:09:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d3b8f562c58ca3d15f9b337509df0b28 SHA-1: 8a68a24312b4afa0e55e9a3eaedd6d26bf71c03a SHA-256: 3411bd567239075374d7e9be97d3d6566f86ef564ca6628c6369a7804e3d05c4
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://trafffe.ru/123?utm_term=facebook+merge+pages+which+one+gets+deleted PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495065/normal_5faffcbde540f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417030/normal_5fa54d8043458.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/034a9e67-b074-46de-a9c5-f3044a1d9c86/febixera.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/10775654008.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50cf8218-a4f2-44cb-86fa-679d04441252/kifikara.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/lean_to_shed_plans_free_12x24.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d7a2179-e996-4c70-900f-2718c4c2146b/main_teri_ho_gayi_mp3_song_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/contabilidad_asientos_contables.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/ponuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ada4455-9bcf-4dee-8825-d9e12dbddb49/69077036083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/094e5766-ba91-405e-a01b-1e3432533bed/craftsman_riding_tractor_manuals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/feb79c23-ecd1-4d4c-83c3-18050ee451b7/93471545153.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/sample_letter_of_intent_to_purchase_land.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28535270-f316-42f1-a76e-22fac30c645d/black_and_decker_lithium_hand_vacuum_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ccf9f48-821b-4b41-87bc-d71dec362ee0/fowokenidesarageser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3b70eea-a557-4926-9a6b-af196ee54e32/new_apartments_in_atlanta.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 5

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_off0000d083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD083 5736 bytes
SHA-256: 898537ebb3270a78f131987bbae4a68b5435b1706159df29a3f77aebd0fbd30c
font_01_sfnt_off0000e3e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E9 10680 bytes
SHA-256: 2635506126d5efdf0cc16292d328cc34cfe7f216a351785207434ba65ed8bc78

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