Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e24edbf21b974eb…

MALICIOUS

PDF

71.8 KB Created: 2021-02-20 01:51:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 121ecf6731a9be48d4fc733e45a26f75 SHA-1: 955e074e10e49916e4347f6ddb41ffe58a1ea171 SHA-256: 1e24edbf21b974eb518f080d2b986bb6d6c9975e123029f7997609a1feff138a
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://yafferge.ru/wix?keyword=fb+lite+apk+download+latest+version In PDF document text
    • https://lilalosemojuwo.weebly.com/uploads/1/3/0/8/130814601/8170043.pdfIn PDF document text
    • https://zodoxofavuzawa.weebly.com/uploads/1/3/1/4/131437464/gipetugilowafaviwu.pdfIn PDF document text
    • https://talogaxuzule.weebly.com/uploads/1/3/4/5/134596774/tazap-tover.pdfIn PDF document text
    • https://dudobafileziv.weebly.com/uploads/1/3/5/3/135331993/a85c41.pdfIn PDF document text
    • https://vuwapelenepaje.weebly.com/uploads/1/3/4/7/134705438/jutubipelim_lodure_wavut.pdfIn PDF document text
    • https://vobasonuniba.weebly.com/uploads/1/3/4/6/134668907/sibuxilikozejo.pdfIn PDF document text
    • https://mujunuduxur.weebly.com/uploads/1/3/5/3/135327440/3e0dc40bc6d970.pdfIn PDF document text
    • https://revasarubon.weebly.com/uploads/1/3/5/2/135295272/fenazafos.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/e0jiI0S/idle_food_restaurant_tycoon_mod_apk.pdfIn PDF document text
    • https://rebeluzibefu.weebly.com/uploads/1/3/4/6/134619862/7830021.pdfIn PDF document text
    • https://zebonusifok.weebly.com/uploads/1/3/4/5/134509505/giromunutogewog.pdfIn PDF document text
    • https://cdn.sqhk.co/bujerinalo/IGha5hf/sozalukes.pdfIn PDF document text
    • https://cdn.sqhk.co/midipijikami/UsAMjaX/designer_city_building_game_hile.pdfIn PDF document text
    • https://cdn.sqhk.co/xalurubizud/fKjbWgf/pogamo.pdfIn PDF document text
    • https://pakujefaf.weebly.com/uploads/1/3/0/7/130740244/wepitokuki.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://fabonek.rf.gd/70440219266.pdfIn PDF document text
    • http://bekabugi.epizy.com/dispute_credit_report_form.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/free_appointment_planner_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/work_rules_laszlo_bock_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/tafiwamakufetorefowofanu.pdfIn PDF document text
    • http://bozumux.epizy.com/27417261874.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_off0000cf76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF76 5052 bytes
SHA-256: e8c8b450ce6580cdf0acd0e3154f81e80d1c6641d8025331cf8e4b4d82eb2c8c
font_01_sfnt_off0000e0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B9 10296 bytes
SHA-256: 08676a7c96a99a3aadffbade031389149510e53fc90e094d5348f8651b2c8c8e
font_02_sfnt_off000103b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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