Malicious PDF — malware analysis report

Static analysis result for SHA-256 46368008345215bd…

MALICIOUS

PDF

86.7 KB Created: 2021-03-15 04:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e7bac7f7baa81426341a9ef33f9a0bfb SHA-1: c77f24530e80cf302ad1c96bde648a3dea2a94ab SHA-256: 46368008345215bdd4d112a91025436a70e55b3501dc2862eecff15bbb9ff233
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external links, with heuristics identifying it as a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The embedded URLs point to various domains, some of which are associated with potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://jumiwimov.ru/award?keyword=constitution+brazil+english+pdf PDF link annotation
    • https://cdn.sqhk.co/tukawezezo/hihbWBP/diet_breakfast_ideas_with_eggs.pdfIn PDF document text
    • https://vanufutalolu.weebly.com/uploads/1/3/1/1/131164160/6053b38586d02c.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/ehalqie/xarudopegasafoturuj.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/harry_potter_hogwarts_house_test_playbuzz.pdfIn PDF document text
    • https://bewodopogogubak.weebly.com/uploads/1/3/4/8/134886142/melidaz-vuveja.pdfIn PDF document text
    • http://pozezan.mygamesonline.org/debofiv.pdfIn PDF document text
    • https://cdn.sqhk.co/labojime/aheZhd2/21093937280.pdfIn PDF document text
    • https://jukawowirorab.weebly.com/uploads/1/3/4/6/134662443/6213712.pdfIn PDF document text
    • https://cdn.sqhk.co/digatamale/fIf2hbZ/drive_apple_usb.pdfIn PDF document text
    • http://ravigimojamel.mypressonline.com/is_it_easy_to_learn_hieroglyphics.pdfIn PDF document text
    • https://cdn.sqhk.co/wemerofada/cBOjd5Y/limotarilijorosivudonaw.pdfIn PDF document text
    • http://zesisoxesevi.22web.org/38492730507.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/jagux/netgear_ac1600_router_installation.pdfIn PDF document text
    • http://negavutagogo.epizy.com/42516103111.pdfIn PDF document text
    • http://rogomore.myartsonline.com/9598861295.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/can_i_search_google_using_a_picture.pdfIn PDF document text
    • https://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_9112958639cf4afa9414f39e0f08e73f.pdf?index=trueIn PDF document text
    • http://laxakufas.epizy.com/8345496408.pdfIn PDF document text
    • http://figedid.rf.gd/what_does_an_echocardiogram_show_that_a_stress_test_doesnt.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/whats_the_best_golf_gps_app_for_apple_watch.pdfIn PDF document text
    • https://5366dd3f-28a3-4342-b8e5-5bed86455aec.filesusr.com/ugd/a92322_cf5ae51846f749938b16ddcef1e87d51.pdf?index=trueIn PDF document text
    • https://3d3b31fc-6152-41c7-b1d4-a4af3afcce63.filesusr.com/ugd/3f8d85_6600ba1c092f46aaaeb183c0fc70361f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/patilawasu/maytag_bravos_xl_dryer_installation_manual.pdfIn PDF document text
    • https://8641c524-1fb5-4292-87ed-dd72f64d6c22.filesusr.com/ugd/9b7d8a_9b76daef1ac74503883f012c8125a657.pdf?index=trueIn PDF document text
    • http://wexipara.rf.gd/ruzogafiganirub.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/zulunoru.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_off000110f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110F6 5400 bytes
SHA-256: 6a61872ab8a2915be1ea144f17f5551737efbdbcb9d932c44ba49693fce26bff
font_01_sfnt_off00012347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12347 13840 bytes
SHA-256: 41a1186c0ffc6206e2074467021ccc80812a5820eba9e6c5a612e6f0fea22b07

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