Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b168b3ed002792…

MALICIOUS

PDF

76.9 KB Created: 2021-04-05 14:01:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 59157cfae526cd7778bed43eeee52c27 SHA-1: ea9c1f4021a14d69356dd1a4a9556bf1bfccdba6 SHA-256: 46b168b3ed002792efe408e573724ad8941148b456ba067fc2bcb57650ec569b
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 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
  • 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.
  • 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://lozipotod.ru/wix?keyword=akita+puppies+for+sale+duluth+mn PDF link annotation
    • https://cdn.sqhk.co/josipinu/iigcgjf/how_can_fear_be_used_to_manipulate_essay.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/hcDUwnh/83778147994.pdfIn PDF document text
    • http://prazdnikprosto.ru/22683707871w9uw9.pdfIn PDF document text
    • https://mevavenepid.weebly.com/uploads/1/3/1/6/131637679/linokan.pdfIn PDF document text
    • https://cdn.sqhk.co/vixawutozama/5ibgigi/59776344523.pdfIn PDF document text
    • http://jsexj.fun/antithrombotic_drug_therapy_in_cardiovascular_diseasejnzbb.pdfIn PDF document text
    • https://woziwapimarezex.weebly.com/uploads/1/3/5/4/135400795/4392550.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/EpigjM3/rotator_cuff_muscles_insertion_and_origin.pdfIn PDF document text
    • https://xojakonokixamu.weebly.com/uploads/1/3/1/1/131164577/fidotivaluvexilip.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/accords_suspendus_guitare.pdfIn PDF document text
    • http://startbastar.online/kilasibikixiroretozaguitequ.pdfIn PDF document text
    • http://deflecfcvy.best/117938457713ce9h.pdfIn PDF document text
    • http://sq11mini.com/36195267500k1poh.pdfIn PDF document text
    • https://jawozararo.weebly.com/uploads/1/3/5/9/135964334/dibutodotoj.pdfIn PDF document text
    • https://cdn.sqhk.co/pevedapev/Y4Xje8y/74019264292.pdfIn PDF document text
    • http://idslim-italia.site/348592939507jqn8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duziroro.myartsonline.com/48114865363.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99f6fbae-e2fb-4df9-9544-f23d857299e5/self_clean_button_on_cuisinart_coffee_maker.pdfIn PDF document text
    • http://mojenuj.atwebpages.com/barron_s_sat_subject_test_math_level_2_13th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2de60fc0-484f-42d9-a7cc-b1392b344417/nujufarozo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD9 5336 bytes
SHA-256: ed525484ea10669c90fc770284d597b7ec96d810cd6c3083977ee62e15f1b975
font_01_sfnt_off0000ffd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD6 10820 bytes
SHA-256: f2ed914ec2e36575f1f58e26918a4d56ab9338d012e87f3b84fdf5678a093e24

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