Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c22677892deaf82…

MALICIOUS

PDF

86.6 KB Created: 2021-04-02 21:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 607cac7ffa2c27f2b95f9e89252bb795 SHA-1: e5744295ecaa6ac5c46c5854b2ceafe0db7cf12e SHA-256: 2c22677892deaf82ffde7f9ab5b6e22a68be9bea8269992e1cbc27b517ecbb98
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 0.9994

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://soxebez.ru/123?utm_term=cateye+strada+wireless+cadence+manual PDF link annotation
    • http://zokupez.mygamesonline.org/circadian_code.pdfIn PDF document text
    • https://cdn.sqhk.co/suvotoruwot/BgchfGZ/master_s_degree_in_international_relations_online.pdfIn PDF document text
    • https://cdn.sqhk.co/satovepato/hanYLhb/xatapuvevilipamakego.pdfIn PDF document text
    • http://jujovobima.getenjoyment.net/nowopipiz.pdfIn PDF document text
    • http://gapokaro.mywebcommunity.org/wunijora.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/introduction_automata_theory.pdfIn PDF document text
    • http://sutovuresas.mygamesonline.org/moxinoketivuko.pdfIn PDF document text
    • http://liwitesuzemumex.sportsontheweb.net/65197361011.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/ii9Gphi/14454916102.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/nokiva/rabovilaxejirivizuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e322f13-9b99-4dc6-870f-0525f05a33c1/legori.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/xetirumopabemux.pdfIn PDF document text
    • http://taribizuka.epizy.com/42529265104.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daa0e0e6-a1c9-4804-800c-faedc953f9b0/98861505155.pdfIn PDF document text
    • http://bowafiwefugi.epizy.com/razipogumekusovotuvobes.pdfIn PDF document text
    • http://kuwukazisopof.rf.gd/autophagosome_formation_core_machinery_and_adaptations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f1c77df-a9a1-43b5-a3d1-9b041c5c4eae/44426131107.pdfIn PDF document text
    • http://dipimov.epizy.com/91820310507.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/folabal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a81541cb-722c-484a-9459-4ea61dd8b159/how_to_study_for_mn_permit_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94c133b6-7fcc-404a-92ba-39fc5f4a74d6/what_are_some_self_destructive_behaviors.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2E 5072 bytes
SHA-256: 625174501cdfa96ebf84239b37e7da446af9b783dcd7499c8cffdada860224a4
font_01_sfnt_off00010f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F63 2112 bytes
SHA-256: 2eb1dddc3d1a872419a616bc239de2746d5efb4f331343dca20413b792820e73
font_02_sfnt_off00011895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11895 11060 bytes
SHA-256: 787b433eb2d5e2b44f46777702ae54c0e7ac96806e2f854c33492c0d3b354819
font_03_sfnt_off00013e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E7F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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