Malicious PDF — malware analysis report

Static analysis result for SHA-256 37f2132a1f346546…

MALICIOUS

PDF

80.0 KB Created: 2021-05-22 15:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b5bcb0d223767b60e5f61df251a9b077 SHA-1: b58e120c98ab8f92371cb3bbd8bf3abdd52f5e86 SHA-256: 37f2132a1f3465464cd3b0e5f127db4b7c04877727d5b55a010136c0c2e34683
156 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 0.9993

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 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.
  • 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://gimoguvi.ru/strik?utm_term=spartan+bar+bending+machine+manual+pdf PDF link annotation
    • https://girenofozajete.weebly.com/uploads/1/3/4/4/134476001/9654284760c.pdfIn PDF document text
    • https://nogeduju.weebly.com/uploads/1/3/1/3/131398368/beruvurunefevoj.pdfIn PDF document text
    • https://tepukijamuboze.weebly.com/uploads/1/3/5/3/135301813/lobine.pdfIn PDF document text
    • https://vupebuxotilejo.weebly.com/uploads/1/3/0/8/130814562/vulaze.pdfIn PDF document text
    • https://pasorizafam.weebly.com/uploads/1/3/4/0/134096756/mobebe.pdfIn PDF document text
    • https://viferoxabuged.weebly.com/uploads/1/3/4/2/134235394/diliwusavo.pdfIn PDF document text
    • https://pejuloxekipural.weebly.com/uploads/1/3/4/4/134403187/nojijozejorij_lamudot_jamolo_tafadowup.pdfIn PDF document text
    • https://buxudirikebipur.weebly.com/uploads/1/3/1/1/131164004/fexajanotuba.pdfIn PDF document text
    • https://tidevaxapoled.weebly.com/uploads/1/3/5/9/135971763/3504521.pdfIn PDF document text
    • https://mixasokuxorizu.weebly.com/uploads/1/3/4/7/134742222/af7e51.pdfIn PDF document text
    • https://xidoteruredogon.weebly.com/uploads/1/3/1/4/131454367/877091.pdfIn PDF document text
    • https://doxazefeseremef.weebly.com/uploads/1/3/4/7/134764644/3683629.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/jalasilunaz/sensor_tower_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70a6902b-030f-471d-9dd4-6f2ee9e02f37/mobokigunofibabun.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/51006420130.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/minaz.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/mapudipazumifopusofodu.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/zufarejozoxip.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/fur_elise_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/bixebetutalefajinizafe.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/gopro_karma_spec_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f5d15a6-193a-43e7-bb45-f5508e89721a/2012_toyota_highlander_service_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e94aee58-8969-40a5-90d9-12a86cfd5013/how_to_check_a_business_through_the_better_business_bureau.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/pedirivo.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_off0000f769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF769 5632 bytes
SHA-256: 37b8cf1cb3f3ffc766879c0a3eb9746359bce5853b8aee658ea881108b01700a
font_01_sfnt_off00010a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A67 11704 bytes
SHA-256: da9a1aad9e7a00798ad23db47c830d619e2b64b98287254da8e2e6b25df81238

Open this report in the interactive analyzer, or submit your own file for analysis.