Malicious PDF — malware analysis report

Static analysis result for SHA-256 0409fe421b5768a3…

MALICIOUS

PDF

80.9 KB Created: 2021-03-06 12:57:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a2d369bb5cc620c5f0913d0e408f518b SHA-1: ed734d95be969550269e323953c71f65103e82dd SHA-256: 0409fe421b5768a3cec4dfdd10447d05574905a5de5617121087969dce3613af
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://jottigo.ru/strik?utm_term=kitchenaid+food+chopper+3.5+cup+review PDF link annotation
    • https://movefaka.weebly.com/uploads/1/3/5/3/135304133/2502288.pdfIn PDF document text
    • https://sawuwirepugasup.weebly.com/uploads/1/3/0/9/130969548/b606284add.pdfIn PDF document text
    • http://vivudanu.scienceontheweb.net/imax_b6_charger_review.pdfIn PDF document text
    • https://komibaxes.weebly.com/uploads/1/3/1/6/131606619/fed559afa1d9.pdfIn PDF document text
    • https://kunefenirubineb.weebly.com/uploads/1/3/0/7/130739500/e0d473ad9ee544e.pdfIn PDF document text
    • https://walipovagotil.weebly.com/uploads/1/3/6/0/136016519/mesexozotoz-bozizutid-juzegik.pdfIn PDF document text
    • https://fegovelusilefu.weebly.com/uploads/1/3/5/3/135330230/tagabinad.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/acer_laptop_charger_plugged_in_not_charging.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/34551845957.pdfIn PDF document text
    • https://zisatusomet.weebly.com/uploads/1/3/4/8/134872515/jirabewuri_javitu.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/f50630a9-6f0a-41ac-95f5-1964d404545c/is_a_sensory_processing_disorder_considered_a_disability.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/fatafogadedudagire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6fc3696-2fa6-4887-8519-95d20f92bcec/alpha_omega_car_seat_expiry_dates.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/bangla_live_channel.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/north_penn_reporter_obituaries_lansdale_pa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd9db3b8-6dab-4ebf-a0a1-ca20672b5186/nursing_theories.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/18108358815.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/93472939069.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/rinuludunotezukufadonugi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f47ab16-f53f-4892-850d-974b47dc8498/41225976922.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/asus_ac3100_firmware.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/3582245181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d42ea8c-4b2d-4cc4-ad86-5a0e60cc81d0/fuvedezep.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/nikon_p223_scope_rings.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/6542275258.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_off0000feed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEED 5476 bytes
SHA-256: 13f8e23d180fa7e3e577fb933ca7be5615343bba314591e1b6349d01ea121d3d
font_01_sfnt_off000111b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B3 10564 bytes
SHA-256: d0a4e36ebaf683bae092948d8b751f12165b76f0f9303103b1c90bbf0610187c

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