Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a4a24314bad70f…

MALICIOUS

PDF

67.4 KB Created: 2021-03-07 00:17:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 26d6d8ef6a43abace56785a1ec2ecf7f SHA-1: dec5b88d4e3fa2f6ba189a53c27d318c4c7cda1d SHA-256: c3a4a24314bad70fb8abffdd59908f7f2d1d218707a9989b2a0fa353ddc6d715
126 Risk Score

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://seumenha.ru/wix?keyword=sadlier+connect+level+e+unit+2+antonyms+answers PDF link annotation
    • https://cdn.sqhk.co/wujamufaw/iiibPjc/31868780837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408001/normal_6039e4b7b8c31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495976/normal_5fd0b18b65a45.pdfIn PDF document text
    • http://mexuloxuxinona.iblogger.org/74933142082.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445550/normal_5fec75f37c5ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470523/normal_5fdd5ab4696a4.pdfIn PDF document text
    • https://cdn.sqhk.co/develezuwa/fgdiigf/minecraft_dungeons_switch_price.pdfIn PDF document text
    • http://manaluw.iblogger.org/grammar_and_beyond_essentials_3_answer_key.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxogubajo/WFuVvjc/music_for_ballet_class_dance_with_margot.pdfIn PDF document text
    • https://cdn.sqhk.co/lebexuzo/iThbjeg/mokavomiripijuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/zalopubid/3igMBnQ/phoenix_arizona_airport_address.pdfIn PDF document text
    • https://cdn.sqhk.co/nemanive/ijhQkhd/download_bet_plus_app_on_firestick.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5fd8a1b793ce7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f12ad2f-e765-4605-8e2d-27fab92bc306/does_comcast_offer_wireless_cable_boxes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ba88a36-cd98-4d93-8546-ec3c6226fd5f/pretty_little_liars_season_2_episode_13.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4c0be52-edee-41ec-a535-dd1ae162f75e/novopubifix.pdfIn PDF document text
    • http://xakireponamo.rf.gd/newborn_baby_pics_hd.pdfIn PDF document text
    • http://jiporiri.rf.gd/tamilrockers_2019_kutty_movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae8d308b-6fe4-4748-8bcb-359c44df3f8a/6.0_powerstroke_oil_cooler_update.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8d52f76-f816-4c74-90e5-ab9436ef78b6/91634666416.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47c63d35-630f-4bf8-b48c-b392fb6588e5/92897024735.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_off0000c9e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E9 5572 bytes
SHA-256: 0ee95a15aaa382bb0deaa6ffdc9996c91da9697b053689aa2244fd94d26b3eb8
font_01_sfnt_off0000dce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE1 10216 bytes
SHA-256: 74c84e64fd8754b13183eead39fa9363bf7e71af95156ac22da9dc3afeb5f36e

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