Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0abc3eed73d151…

MALICIOUS

PDF

71.5 KB Created: 2021-03-09 11:54:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c2a69e534136799ef7fe9f8ab6df3be0 SHA-1: 4d4be89144b56a4d41c0a9f5dbe192a65f15baa2 SHA-256: fa0abc3eed73d1515d3899ecfc22328b8c8ed4dc727c25c1c71c83813fc775fd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/award?keyword=advanced+public+finance+and+taxation+notes+pdf PDF link annotation
    • https://cdn.sqhk.co/xororofomed/hdVqm3E/25660206430.pdfIn PDF document text
    • https://cdn.sqhk.co/lepagesali/FihGY38/chess_endings_for_beginners_download_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443821/normal_5fd632b1cd448.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481663/normal_60021cf68a1b2.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/ehoibji/subway_princess_runner_apk_uptodown.pdfIn PDF document text
    • https://rewagafiwexufot.weebly.com/uploads/1/3/1/8/131856649/4585cedf07d69b.pdfIn PDF document text
    • https://nudegono.weebly.com/uploads/1/3/4/6/134682657/vofabet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495399/normal_5feb69219a2b9.pdfIn PDF document text
    • https://mepapezivodeno.weebly.com/uploads/1/3/0/9/130969154/boxoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393635/normal_603057539c985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448719/normal_6046d60437a23.pdfIn PDF document text
    • http://bonifacy.site/deserts_of_kharak_mission_guidetrxim.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/4lvhdxB/offline_mobile_games_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449184/normal_5fc5cefc40fde.pdfIn PDF document text
    • http://center-about.com/nexupulewifubizudidabolmyv.pdfIn PDF document text
    • http://salebox.shop/lotumydtm9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455883/normal_5fec226d549dc.pdfIn PDF document text
    • http://ecosbor.net/what_kind_of_battery_does_a_2012_chevy_equinox_takeludr8.pdfIn PDF document text
    • http://mixed-rootwork.com/ligakosezopi49y4.pdfIn PDF document text
    • https://pusurezifokuni.weebly.com/uploads/1/3/4/3/134317864/2692913.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471250/normal_5fd9f3e18b124.pdfIn PDF document text
    • https://falugasotemo.weebly.com/uploads/1/3/1/4/131410545/nonobumuwizemo.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
    • 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_off0000cb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB68 5192 bytes
SHA-256: 8ca3e8847c3899d89ad37983b7eaa38f15a875f281bef61fe669f63c22195f43
font_01_sfnt_off0000dd21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD21 10732 bytes
SHA-256: 52c8038f9225574396d51380dad6ba3b90867c79f06e789cfc78ef473feffdc3
font_02_sfnt_off000101f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101F1 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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