Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f0e043b2db601d…

MALICIOUS

PDF

68.8 KB Created: 2021-03-10 20:09:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 02c5ad0c5d989a8c91160e658b45d549 SHA-1: 5f01f795832b8f05ee96e6a6624aa7c305a3952c SHA-256: 30f0e043b2db601dbb406dec4f5a6deaffe7c26264266bc42229d8873a0dab0c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://nipisod.ru/award?keyword=alagappan+medicine+latest+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/limizolaxa/jyj6jaD/66704774506.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/tevulapinodo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377380/normal_5fc9440554b45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476443/normal_601510ce04666.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/dell_ultra_hd_4k_monitor_p2415q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413468/normal_60278ee5682a3.pdfIn PDF document text
    • https://cdn.sqhk.co/jipogidara/dgdTiay/sefepopin.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/cB8Zpt9/18485542151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_604140265f9f8.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/86548234393.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/hjOshbg/bagifepaleduk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zejibanunepi.myartsonline.com/how_did_the_amnesty_act_of_1872_influence_reconstruction_brainly.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/977a4412-2715-4b34-bc45-c79b19ce13fa/new_king_james_bible_buy_online.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/rufogakixixoxigidafi.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/actualiser_formule_excel_vba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f96659c-1f4b-4a63-8774-176ed72de21f/2997770607.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/164dd7e5-d89f-4a8e-a5cc-fd179433bde9/what_does_it_mean_when_the_bible_says_that_with_god_all_things_are_possible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d8c3667-0feb-4dd1-a3f1-73fdde35b5d9/49421536980.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/bucket_list_movie_marathi_720p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eb43f68-5bed-451d-bd17-b66eec57a6c7/easy_vegan_gluten_free_christmas_cookies.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/how_do_you_light_the_pilot_on_a_heat_and_glo_fireplace.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4399148f-0acc-4f12-a50c-fa69f94c4fbd/65585214436.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfb3041b-c6a6-4cb9-838d-40522231aa2e/dyson_dc25_hose_extension.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/lunawedagofegagodexejox.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_off0000d171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD171 5368 bytes
SHA-256: ecb64ebfa4a9836520196f202e524745e243b6a7302b357ff4268db1818ccf5e
font_01_sfnt_off0000e3aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AA 9928 bytes
SHA-256: e0c437ce47a18f04b52710d2f34e2e51a8ae3393508e083592cc93377bdecede

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