Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5888b6230c18b5…

MALICIOUS

PDF

83.7 KB Created: 2021-04-20 22:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 62f3f5d29a1083a97f2990dfc9d6186c SHA-1: b099ac0ccf1f883179f51045f80b76b10692731c SHA-256: 7f5888b6230c18b513cb5f471bc567b6778fe8a06d1b7b3d41464eb40683da46
136 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for PDF_SEO_UTM_REDIRECTOR_LINK, indicating a phishing lure for a free download. The embedded URL https://golowaki.ru/strik?utm_term=ryobi+dp102l+laser is identified as a redirector to a phishing site. Although no scripts were explicitly extracted, the nature of the PDF and the redirector suggests an attempt to deliver a malicious payload or phish credentials.

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://golowaki.ru/strik?utm_term=ryobi+dp102l+laser PDF link annotation
    • http://wewogokuwidu.mywebcommunity.org/15797386564.pdfIn PDF document text
    • https://cdn.sqhk.co/vudupapuj/VhbOVgi/xubisususofejivuga.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/MibkmoU/67974501117.pdfIn PDF document text
    • https://cdn.sqhk.co/mekekomubun/fjer7ha/hello_kitty_nail_salon_game_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwoxegolewa/c6ggwjd/superhero_ninja_battle_spider_power_rescue_fight_sim.pdfIn PDF document text
    • http://lunagogafoxoj.sportsontheweb.net/dotumuz.pdfIn PDF document text
    • http://ponemofetu.scienceontheweb.net/95000168664.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/mivokozibu/eaton_13_speed_transmission_oil_type.pdfIn PDF document text
    • http://dotopaku.atwebpages.com/63408628573.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/windows_7_sp2_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/jumipenukabefit.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/adobe_flash_professional_bagas31.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/38277715262.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/tokuritisenal.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/amnion_is_formed_by_which_layer.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/69971876665.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/mewoketatexigebemojewef.pdfIn PDF document text
    • http://palexibibiw.atwebpages.com/linux_commands_list_with_examples_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/30994244120.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/biotechnology_and_drug_development.pdfIn PDF document text
    • http://niwimugosaz.onlinewebshop.net/zojuw.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A5 5128 bytes
SHA-256: 189c19f235a675d3a34faececf74bdf305ed02d12bc4d482d3166f0aacb76952
font_01_sfnt_off00010919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10919 11972 bytes
SHA-256: 0f81fd451acf5367836ebb0fb983c0cac9422574827fc0cd2dfd2162d428bc5b
font_02_sfnt_off000131e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131E6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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