Malicious PDF — malware analysis report

Static analysis result for SHA-256 e542d7bc2a28a674…

MALICIOUS

PDF

86.1 KB Created: 2021-01-06 02:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e2bac977eb096ceece35a73dcda9314a SHA-1: 3a9a2a96c780dff935707979d1e2c0b604d27ef5 SHA-256: e542d7bc2a28a67422335bc653fd76ab808a671d77b2264722811045b1ce83ad
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL pointing to a site offering game downloads, suggesting a phishing or malware distribution lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffking.ru/123?utm_term=grand+theft+auto+3+mobile+apk PDF link annotation
    • https://fejegexe.weebly.com/uploads/1/3/4/6/134617501/40eaba0a35c2.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/ie4Vge3/toolbox_organization_hacks.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/wazorixekunafob/butafasutawafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a745895a-4311-4f7f-a5ca-438216f5a10a/rijeguwofomulepobux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/829abbad-dc82-43fc-a140-ef2d4dc7315a/clep_2016_study_guide_american_government.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a051b455-a8a9-476c-b204-f9ab3654ce35/gary_and_mary_west_health_institute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebb50081-af03-4da5-ace6-0014b5b80c9c/35362244350.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/vetuperaxewivonubedapepor.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/tecnologias_de_la_informacion_ejemplos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b31ab21a-e957-4ad8-bbc6-49a853e2a32d/kalifepaguzibogedupuju.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BE 5384 bytes
SHA-256: d9a7c37902f6d17c39b3ddba0f675beb61ecdcfc9aef628ca8b43a10a946fac8
font_01_sfnt_off0000f9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D3 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00010261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10261 10636 bytes
SHA-256: a2201dd97186ab45cf8cf617fa90a07ac04f00c6684ab60dfe539b88f1b1681d
font_03_sfnt_off00012714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12714 16376 bytes
SHA-256: 684a3c196e802b4dc45ee85e0d12f41c83d6b6c6a55a83cec5fb8e332ee9aa36
font_04_sfnt_off00013cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CBC 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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