Malicious PDF — malware analysis report

Static analysis result for SHA-256 62485667923e9bbb…

MALICIOUS

PDF

76.8 KB Created: 2021-04-14 18:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9f0d724cd62e80ebd43ef2a70f407f60 SHA-1: 5a9567cf6db043c5edd6774055d2293d73829cde SHA-256: 62485667923e9bbba2f5bc3f31ea68a09a83f48119c7d0c0b71f41b817cc59c0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/strik?utm_term=d+and+d+beyond+login PDF link annotation
    • https://cdn.sqhk.co/kinanekoxo/ie1hgh2/sawepomabixoginoxuduvoza.pdfIn PDF document text
    • http://lisolu.org/wakemoro2obrc.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/ghiV1Sj/funitija.pdfIn PDF document text
    • http://sk-anker.ru/alexander_henderson_ielts_reading_answersjoyf4.pdfIn PDF document text
    • https://cdn.sqhk.co/zatovafer/hbsXgcZ/3082889427.pdfIn PDF document text
    • http://kexagatedonekun.iblogger.org/how_to_open_ellipsis_tablet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501998/normal_5fe7a1be23ac7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421038/normal_6021a9cac7be0.pdfIn PDF document text
    • https://cdn.sqhk.co/ratosakip/r7k9idx/77243557163.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://7e6b698e-d56f-4a21-8c48-787e2f6d39f4.filesusr.com/ugd/7836c9_732e24fb1e52495c84ac56dc5650296e.pdf?index=trueIn PDF document text
    • http://vefofiben.rf.gd/69472170786.pdfIn PDF document text
    • https://6da1ed31-7a22-45b0-8bc5-463d376071ee.filesusr.com/ugd/29fbaf_e980923de9464aaca5d9939bd69a9ee0.pdf?index=trueIn PDF document text
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_eb60ddcc2ce846ceba3c3dded70865d8.pdf?index=trueIn PDF document text
    • https://f1fb087f-5d49-4061-aa02-230b108315d3.filesusr.com/ugd/645068_42a93fbe5bcb4e6db98d9be606057b65.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/gleam_conductor_sheet_folding_music_stand.pdfIn PDF document text
    • https://dba0ca6b-c979-46b3-87c9-041648dee063.filesusr.com/ugd/6f58fb_65845730a31b456cbb86db6175798de7.pdf?index=trueIn PDF document text
    • http://wibukosumasej.rf.gd/zoxobu.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/bully_anniversary_edition_mods_android.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/panchkula_charitable_trust_online_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/seth_thomas_mantle_clock_hands.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D6 4668 bytes
SHA-256: e6ef384aaaeda6f17edc1a50a94b01cb027213fa52a6bdfa39535ea8c51719c5
font_01_sfnt_off0000f2c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C2 10720 bytes
SHA-256: 85c6fa16e9a76b46648273ca90f67aaa8d7a9183841f03216a38405c2bad259b
font_02_sfnt_off00011779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11779 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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