Malicious PDF — malware analysis report

Static analysis result for SHA-256 f47fe92e8c9623d7…

MALICIOUS

PDF

72.3 KB Created: 2021-04-08 07:10:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: f0dae61ecaa89243940bdef2f7eeec5a SHA-1: 58d519960217e6f72a789ea3c25c8a502c3ad5ce SHA-256: f47fe92e8c9623d7ed6ac39427d9bf1a13a757129d444aa2e6c18cc23938c669
134 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/wix?keyword=pollution+and+recycling+quizlet PDF link annotation
    • https://basopuseg.weebly.com/uploads/1/3/4/7/134703880/ponirejino.pdfIn PDF document text
    • http://momentshop.space/15497907974jj30t.pdfIn PDF document text
    • https://cdn.sqhk.co/gopuxipo/ioBMyje/boros_one_punch_man_destiny_relics.pdfIn PDF document text
    • http://all-gopro.com/wadojezeuym1p.pdfIn PDF document text
    • http://fenellalucynelle.info/85784175101f7yug.pdfIn PDF document text
    • https://nuzoligul.weebly.com/uploads/1/3/3/9/133997434/volar-xepunonal.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/h74wPj9/pefatalewulisivubi.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/PCzgdgc/megan_fox_news_the_five.pdfIn PDF document text
    • http://crawlmqyu.space/cuntos_dientes_tiene_un_adultob3zlv.pdfIn PDF document text
    • http://quickstore.pro/8844236689n0v1m.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_af659985695040e7b3ac662fc6e23ab2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/364478f5-73fd-48c7-ba92-f555f97b75ed/gopro_hero_3_plus_silver_battery_life.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/374e559a-b5e8-40fa-a911-7dabf8584918/ruger_p95_holster_blackhawk.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/20745042425.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/did_you_get_it_level_2_pp._90-91_answers.pdfIn PDF document text
    • https://aa700e4b-9450-4a85-8b7e-8c92ffe47626.filesusr.com/ugd/de972d_d761c2cd26104380908e8272a50d04df.pdf?index=trueIn PDF document text
    • https://eb40363d-1d1f-4170-a897-f23f0f433116.filesusr.com/ugd/2a1429_7afa4c4139514b58a1a2ac8e8c4137cc.pdf?index=trueIn PDF document text
    • https://99516632-72ce-40f3-a9a1-a01c91361c65.filesusr.com/ugd/e42c35_3543f814680348c580dc4d67981666e2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/apology_letter_to_customer_complaint_template.pdfIn PDF document text
    • https://6f847715-c85a-45d9-ae5c-7c68cc800588.filesusr.com/ugd/6e100b_50307308c1224adc9fc442178cd97ae8.pdf?index=trueIn 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_off0000dde5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE5 5208 bytes
SHA-256: cad67b53a0e735fcc45e7f6ad7e5cdf3d9e0b77abc9bfe138dd48250da4659fb
font_01_sfnt_off0000efae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAE 10660 bytes
SHA-256: 66c5315cd78dc649bca7046f55c1c2bcfc9dfc495c9fe9e723c1e8201f03fa09

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