Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f005828da852f1…

MALICIOUS

PDF

83.0 KB Created: 2021-03-19 04:11:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 626bc98dc28a266ad2d3c3b30cd3696c SHA-1: 5dc0742d2d45de543f467a375035507666bce0a0 SHA-256: 07f005828da852f118b19d59a94808503040839d8e91d322a1f7c8e9859c7ef4
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 0.9996

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://xajibur.ru/aws?utm_term=what+is+the+summary+of+the+new+testament PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380867/normal_60421b5e577bb.pdfIn PDF document text
    • http://delaem-sami.online/muscle_car_robot_apkt2i8u.pdfIn PDF document text
    • https://cdn.sqhk.co/rubovadu/3JgfW5T/word_crossy_level_1224.pdfIn PDF document text
    • http://zokazurimila.mygamesonline.org/minn_kota_power_drive_ipilot_head.pdfIn PDF document text
    • http://dizititakozazi.mywebcommunity.org/fuwejaropopaluxesuwovaxo.pdfIn PDF document text
    • https://cdn.sqhk.co/zitiwofiru/jgxbjd0/27405988866.pdfIn PDF document text
    • http://lebedugipul.mywebcommunity.org/textaufgaben_bruchrechnung_mit_lsungen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457862/normal_600bbef40ebe5.pdfIn PDF document text
    • http://vowewudimo.mypressonline.com/30604091479.pdfIn PDF document text
    • http://waranijovuv.sportsontheweb.net/65580081789.pdfIn PDF document text
    • http://mysteps.online/42500592615j841a.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/68007723285.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417535/normal_5fecaf580e2ca.pdfIn PDF document text
    • http://vukufitu.mywebcommunity.org/refuvew.pdfIn PDF document text
    • http://jidokove.scienceontheweb.net/59536929315.pdfIn PDF document text
    • http://felagem.getenjoyment.net/the_book_of_law_aleister_crowley.pdfIn PDF document text
    • https://cdn.sqhk.co/wizokawoxo/gffhajc/wirumitoduwetizu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470543/normal_600c5f8f4b02e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wizidimawag/best_android_ebook_reader_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/bmw_navigator_6_update_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/69209469194.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 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF890 5064 bytes
SHA-256: cec77cd4b5e316f0a8359c364379f79d092d1bb3a8edaf59bb77589277d47ee6
font_01_sfnt_off000109b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B6 11108 bytes
SHA-256: 91d175626746d5410975cd8f215d718f8c05634d72ca6a8703e38cfb0c18619f
font_02_sfnt_off00012f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F09 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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