Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f065675a927e7ae…

MALICIOUS

PDF

78.1 KB Created: 2021-03-16 05:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 911293055ff4d7c4b0b29d8eaf117576 SHA-1: d6902df582cadf8f2e5c08d6df83fa6b28257170 SHA-256: 0f065675a927e7aecba05cc75c16de34aa8a7d8cc1b62bd0d146654cd0909835
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 0.9997

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/strik?utm_term=average+salary+for+construction+project+manager+in+dubai PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417983/normal_5fc88b6b3c62a.pdfIn PDF document text
    • https://cdn.sqhk.co/lunajevon/NheHW6C/medodoni.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453901/normal_5fc6a320119c5.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/ghhFhj3/black_cat_christmas_cards.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447095/normal_604e76ca6bcaf.pdfIn PDF document text
    • https://cdn.sqhk.co/rexixugepir/ggeuie3/17998268308.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/Whjidje/battle_angel_alita_last_order_omnibus_review.pdfIn PDF document text
    • https://cdn.sqhk.co/gujurolekuma/iXGs8t4/58552749986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476285/normal_6043432b4e47f.pdfIn PDF document text
    • https://cdn.sqhk.co/sivojadirabe/jam92hf/hockey_stick_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446651/normal_604f19164d343.pdfIn PDF document text
    • http://sugoxebojun.getenjoyment.net/esp8266_arduino_library.pdfIn PDF document text
    • https://cdn.sqhk.co/gatezoru/icFsNKo/toy_r_us_warehouse_sale_2020.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/c3d0c9d1-6b99-4cdf-8ad8-956b0bd5ffb1/fugugovonozazadiwodegevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd5fd46b-718e-4e51-a6be-fc74fd45683a/what_sign_is_november_22nd.pdfIn PDF document text
    • http://mikijanux.atwebpages.com/aggiornamento_per_windows_vista.pdfIn PDF document text
    • http://negumigimewote.onlinewebshop.net/8151389157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93de4b15-5447-4360-9d56-d8a8bae91954/94272458825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98b0d652-161e-487c-98c3-51d3d58121ba/97634579174.pdfIn PDF document text
    • http://pujumek.myartsonline.com/carpal_tunnel_patient_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd8992c9-9100-43e9-897b-f9a9e816cf04/92117789583.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_off0000f1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B9 5844 bytes
SHA-256: c28e2b5bec3c222e8f90dfc6284e6ada6efb6ce310295316b84f4c1e57f18cac
font_01_sfnt_off0001059d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059D 10892 bytes
SHA-256: b0bb9d5537c3614459c773524861e64098f194aa6ce5dafa7c8611d60e35311b

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