Malicious PDF — malware analysis report

Static analysis result for SHA-256 d09c2ec385e5cb7a…

MALICIOUS

PDF

72.1 KB Created: 2020-12-24 20:58:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e21e2d00d1c8650a61b01c005c158633 SHA-1: 1c4c7517fcc9d7f5c528108a3790f17c17de4e86 SHA-256: d09c2ec385e5cb7a2bc15df23ed73d37737ed6309fe9db90977cf0277c407246
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 0.9998

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://trafffe.ru/123?utm_term=moon+trine+mars+synastry+attraction PDF link annotation
    • https://cdn.sqhk.co/zesunotu/Z3SBgji/unicorn_photo_shoot_dresses.pdfIn PDF document text
    • https://cdn.sqhk.co/lutaxudepoje/EiaMgd6/19102735076.pdfIn PDF document text
    • https://cdn.sqhk.co/merivexasug/DxBjdrb/56029694450.pdfIn PDF document text
    • https://cdn.sqhk.co/munenetifu/Fih4djj/61818503364.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/92f4216fede0.pdfIn PDF document text
    • https://kijabejinal.weebly.com/uploads/1/3/0/9/130969506/4717379.pdfIn PDF document text
    • https://cdn.sqhk.co/xisiwuba/ehtZjjo/85428768971.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/xojafemori/samsung_scs-2u01_factory_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/dewitogobovuxotugo.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/59538499975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91fce377-42e2-49b7-878f-962dcbb3f080/goodwill_san_francisco_ca.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/hm_land_registry_fee_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e2e5c4b-41f7-4481-838f-3e15cd6437d5/minovovikozukun.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/puwoboro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ba45dc2-e0a5-4fd6-8d8f-d6dbf3b32bb7/wodidudorebidobemosuw.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/6544289259.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE113 5020 bytes
SHA-256: c4d1973b2fa7dd3b809659e1db8aa518731e3825a4ae7657a923d7d5e7ee5ce4
font_01_sfnt_off0000f21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21F 9720 bytes
SHA-256: d465751af06b9774ea6e2b590428577943cc70d455d19ceaa0297f4b28ea11e0

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