Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a362329f237fe57…

MALICIOUS

PDF

69.2 KB Created: 2021-02-17 07:20:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f3469f86c3d98be88beb0b87b87f3fad SHA-1: 86cc6ddfc09b53a2cb065446ca653deee3022531 SHA-256: 2a362329f237fe57b1662696e0ffc1651327d8fc280638904304699eb13a6553
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=maplestory+m+hyper+stats+guide PDF link annotation
    • http://xoxinusenavi.66ghz.com/osrs_demon_slayer_quest_guide.pdfIn PDF document text
    • https://gitodaxip.weebly.com/uploads/1/3/5/9/135960033/0ab0de33cba4.pdfIn PDF document text
    • https://wofexajolevesi.weebly.com/uploads/1/3/5/3/135302186/32c6b2da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376856/normal_60185003dd481.pdfIn PDF document text
    • https://sarejazaxixosib.weebly.com/uploads/1/3/4/6/134633098/7311f8c2ac.pdfIn PDF document text
    • http://gemajesubon.22web.org/laser_b2_student_s_book_answers_key.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/group_g_strep_treatment_guidelines.pdfIn PDF document text
    • http://kizarepopudoso.epizy.com/formato_cdr_para_jpg.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/bhai_punjabi_song.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/cnidaria_characteristics.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/33138670214.pdfIn PDF document text
    • http://nipixexit.rf.gd/nadewin.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_off0000d248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD248 5480 bytes
SHA-256: 87877f3d53819bb369dfc93971142b91e26bcea07e03283badea8ed86bf2fb87
font_01_sfnt_off0000e4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D6 10412 bytes
SHA-256: d6f48e94688799d3fc9dfa692c7c603daa5d2f9d3366da288f23d9148740775f