Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0a592006995ec4…

MALICIOUS

PDF

75.3 KB Created: 2021-06-09 07:05:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5ae5ed8be7e121098ecfc8567a027b96 SHA-1: 8030957ca3ce791a8da8fcf06f55630c9d07f59f SHA-256: ea0a592006995ec4f19004ebfb92693bd9658a658c62c3e67c0b4b6541b680c0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document body contains text related to downloading a song, and an embedded URI points to a URL that appears to be a redirector for a download. The presence of multiple links and disposable hosting suggests a link farm used for distributing malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://laborke.ru/pbw?utm_term=dooriyan+song+by+guri+mp3+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379984/normal_603c449681018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499283/normal_5fe8731f951d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487622/normal_6048c76f0537a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404500/normal_5fda849207fd2.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4404964/normal_60b1461b3d3cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_605de1d10ebd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465000/normal_5fec21b4a0a0d.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4471474/normal_60b7819c188c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405641/normal_6022361dc7f21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445864/normal_5fe74d40bfe3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bekivuxuga.pbworks.com/f/vobumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bdf1604-9d7d-40b8-a7df-30b410c3a246/pawovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da25d9f5-9b96-4c51-83bc-37e0e9835b13/panasonic_bread_machine_recipes_raisin_bread.pdfIn PDF document text
    • http://bowawesup.pbworks.com/w/file/fetch/144819774/bidinugodun.pdfIn PDF document text
    • http://gemometis.pbworks.com/w/file/fetch/144501813/ship_games_simulator_professional_v2._0_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93e9953d-2efb-4fe9-a8d1-8b065217826d/ff7_remake_game_guide_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c0399e4-e2d3-4d8a-a973-702de98746f8/24834902749.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b57ec25-2b03-4ad4-bad5-8b8f317967b6/26682505728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/732d4626-00ab-471d-ac37-cd1549c5015c/58369862071.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d26e24c-a173-40ca-a87f-ec38239df07b/12728718365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72d599c4-f923-4900-8225-dd57b05c17ff/21415583616.pdfIn PDF document text
    • http://zewalar.pbworks.com/f/citra_3ds_android_system_requirements.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_off0000e7e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E9 5776 bytes
SHA-256: 846a8cb9efabd0b234022bd9910e876813fb8a4deacfeda94647f1315668bb49
font_01_sfnt_off0000fb92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB92 10612 bytes
SHA-256: 65a8b8610e68795f359bc732aa0deb272c012d095e8422004af25551f270c0ca

Open this report in the interactive analyzer, or submit your own file for analysis.