Malicious PDF — malware analysis report

Static analysis result for SHA-256 47fab6f77bb58409…

MALICIOUS

PDF

92.3 KB Created: 2021-03-30 03:05:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e4cd60e8510a9cb1c223444fc7c740e5 SHA-1: b55bd9046acfaae89b4a18aa31fcaaa1b51bac4d SHA-256: 47fab6f77bb58409e42b6390344b604450e797a90432111fe162d7dd0e6062c2
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous external links, many pointing to disposable domains, suggesting a link farm or phishing attempt. The primary URL, 'https://seumenha.ru/wix?keyword=coin+master+apk+mod+july+2020', indicates a lure for a modified game application, likely a phishing or malware distribution tactic. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 6

  • 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.
  • 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://seumenha.ru/wix?keyword=coin+master+apk+mod+july+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451742/normal_6022e65663597.pdfIn PDF document text
    • http://austritkfa.com/3533481279q7gfy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474457/normal_605c6f0ec424e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458837/normal_60107d27e723d.pdfIn PDF document text
    • http://activa-fb.com/why_isnt_my_smart_light_workingau6pk.pdfIn PDF document text
    • http://nujagexurej.medianewsonline.com/lelikozipax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468837/normal_602a29c455dd1.pdfIn PDF document text
    • http://fasoxuxesatilu.sportsontheweb.net/access_control_policy.pdfIn PDF document text
    • http://riwopebikiguwa.mywebcommunity.org/dojodafajomaxikomisevaxel.pdfIn PDF document text
    • http://fiwisud.getenjoyment.net/ford_555d_backhoe_service_manual.pdfIn PDF document text
    • http://misujupino.getenjoyment.net/62383146876.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458826/normal_6054695a4b255.pdfIn PDF document text
    • http://budivev.scienceontheweb.net/the_card_sharper_s_daughter_summary_in.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://futikuzita.onlinewebshop.net/90173956732.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bdf13a0-781d-406f-b47d-f35cbf689f11/2004_ford_focus_wagon_ztw.pdfIn PDF document text
    • https://e216d865-ddc7-438b-99b2-64609380b1bb.filesusr.com/ugd/7ae8b3_718ad0fd7df24a55aefce4e904b6f34d.pdf?index=trueIn PDF document text
    • https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_bd95f60263184cdea1d528ae4e549798.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8a73aca-c6a4-473d-81a5-28ef5536a9eb/pironowujase.pdfIn PDF document text
    • https://9e705916-5bde-4eb8-be9b-8b3e910fbaf8.filesusr.com/ugd/c7a620_e57d8a4a041f460490218adcd14fcbe1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3262235d-04cb-45be-8508-464fd3155c03/katuzetavenabanozum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5378d3b1-b76a-49ab-b266-839ded6eeaaa/asus_rt-ac88u_repair.pdfIn PDF document text
    • https://c0771fee-1ba5-4dbf-bba5-a775c3d44c03.filesusr.com/ugd/544e7e_261e9d3d29f847448800677981d15d5f.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A7 2960 bytes
SHA-256: 4c688c0676da4c9c3f1d636d29496b85ed1f90b4285ee9b780884cc7de0e34ac
font_01_sfnt_off00010c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C17 5524 bytes
SHA-256: 92a9d50830385e27397d215f6e64d6e2d8c8e46d0ac2a2db4a3a2c5cc0f20fc2
font_02_sfnt_off00011ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC9 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_03_sfnt_off00012757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12757 11108 bytes
SHA-256: c864e5f8f827fd8425baf33dcd2886678c4368e201023682a10b52329ebcc195
font_04_sfnt_off00014daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14DAA 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67

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