Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d17925f7afaa13b…

MALICIOUS

PDF

72.9 KB Created: 2021-02-18 12:26:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 91ecbec2e337966d875c1f86038ebc16 SHA-1: 3e3d79d279664b25701789602ec73db19c77cb1e SHA-256: 2d17925f7afaa13beafe84286b236bffa676423d29b71d19f2a9a741a362ce62
126 Risk Score

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://maypoin.ru/wix?keyword=another+slice+of+ham+guide PDF link annotation
    • https://cdn.sqhk.co/bipuzojafa/ifjgggf/dosok.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/gdjhifT/fatal_raid_apk_obb_offline.pdfIn PDF document text
    • https://cdn.sqhk.co/mivufarowiwi/rmsWjfS/51206000635.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/hX0a0gc/bagamaxigesudinajipug.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/jjgeLhj/sibazufen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458833/normal_5fe63d7a800d9.pdfIn PDF document text
    • http://zirajalo.22web.org/xibevapufuximavonipepu.pdfIn PDF document text
    • https://cdn.sqhk.co/tolononof/hisYhhi/business_game_board_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojonujaj/gigePpz/82363357292.pdfIn PDF document text
    • http://gakekasabikav.22web.org/learn_agile_project_management_free.pdfIn PDF document text
    • http://hh666o.site/fibilexikamemunkwz6g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405420/normal_5feaed0d30455.pdfIn PDF document text
    • http://starkrobotics.org/lekawurezawojo3r9l4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384628/normal_5fecbc5584b89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425504/normal_6027662b4b5f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454420/normal_5fe10477ea159.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tosopipates.epizy.com/arsenal_match_report_guardian.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/tabla_periodica_blanco_y_negro.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_off0000e0b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B7 5424 bytes
SHA-256: b8c82875af1d310773adb18b556e24536a93812746447c23e3151d7575b59d50
font_01_sfnt_off0000f301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF301 10476 bytes
SHA-256: 6e8f79d55863896da4a23431c9b639163740ad787d066efa6675d7222b8ae8e6