Malicious PDF — malware analysis report

Static analysis result for SHA-256 5760352094e9a7d5…

MALICIOUS

PDF

70.8 KB Created: 2021-03-24 01:23:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2aba28537797190f933ba4a33dca7fa5 SHA-1: e8b4cf2a3121213b4a9db8e11ef9f5dc9aa2565c SHA-256: 5760352094e9a7d5c644eb7020b7542ecde608d3769b8ac342af3e1ff53c1938
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 0.9997

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://golowaki.ru/wix?keyword=breville+tea+maker+model+btm800xl+manual PDF link annotation
    • https://cdn.sqhk.co/kivipemo/Dvidgjl/android_nougat_32_bit.pdfIn PDF document text
    • https://cdn.sqhk.co/bedogipaxog/amW9jjv/38465754100.pdfIn PDF document text
    • http://rijexofugovu.medianewsonline.com/business_letter_for_quotation_request.pdfIn PDF document text
    • http://xefopuro.mypressonline.com/mamej.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/ape8ijb/b2b_sales_best_books.pdfIn PDF document text
    • https://cdn.sqhk.co/mozulunilex/nWgjjic/33376300617.pdfIn PDF document text
    • https://cdn.sqhk.co/nowonipewo/jgdhdjb/toolboxes_at_tractor_supply.pdfIn PDF document text
    • http://gopidap.scienceontheweb.net/la_fitness_cancellation_form_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/nejibija/CF2ifK3/best_free_antivirus_software_app_for_android.pdfIn PDF document text
    • http://tizadejaso.getenjoyment.net/ielts_ngc_bch.pdfIn PDF document text
    • http://volupixo.mygamesonline.org/enlace_puente_de_hidrogeno.pdfIn PDF document text
    • https://cdn.sqhk.co/vabilafibalu/n2TbmFe/14016094468.pdfIn PDF document text
    • https://cdn.sqhk.co/pikikunifav/EIZgjie/timelixunedatuwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/69fa675d-cc4f-4902-a24e-77ddf1891da8/wisejiwawin.pdfIn PDF document text
    • http://xobusifuj.epizy.com/92471705776.pdfIn PDF document text
    • http://kofodubelo.rf.gd/what_foods_naturally_kill_candida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2c0017-af71-442a-91d9-37697a555ab7/how_to_use_a_mandrel_tube_bender.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56742b3a-d6f2-4c25-82c9-d43a21985d6f/is_h2so3_a_strong_acid.pdfIn PDF document text
    • http://zajupulavofawi.myartsonline.com/what_medicine_is_used_for_coronary_heart_disease.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cbf8601-0687-4ce7-b577-9c7d1ebc9b96/flower_of_life_tattoo_pattern.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a02c7979-3907-4bf8-8613-e517c048839d/how_to_sign_up_for_staples_rewards.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_off0000d4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C1 5508 bytes
SHA-256: 6a2b3574848c691855bcd003ea3cd6021936671296e57a2bedccb785995cbc15
font_01_sfnt_off0000e76e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76E 10764 bytes
SHA-256: 7f649079205fc5eb5fb238f42da3b297cc73cc8e3531afbf94c94c103103838f

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