Malicious PDF — malware analysis report

Static analysis result for SHA-256 2062a14580e30225…

MALICIOUS

PDF

45.0 KB Created: 2020-11-05 14:28:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2eb4043199cdc68c5956b62eba842c3a SHA-1: 725a8593e2b0cd24e873b0c1e90daeef67bbf78a SHA-256: 2062a14580e302250fae403d69e3ab1feeb02b8f2ce134f51fcd6da3ef8bc183
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits malicious behavior by impersonating a cloud document sharing service to trick users into disabling their security software. It contains a link to a known malicious redirector, which in turn leads to a page offering a KMSPico Windows 10 activator, suggesting a lure for pirated software and potentially malware. The presence of a security bypass instruction and a high ML classifier score further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://gettraff.ru/123?keyword=kmspico+windows+10+activator+rar
    • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/torajisol-miravetewiluput-wovugejeg-fedawu.pdf
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/gipujowoxebukafixi.pdf
    • https://cdn-cms.f-static.net/uploads/4423427/normal_5f9b0887b1f33.pdf
    • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8c28cc99bfe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/fe1db2ae-dde9-40a3-8137-8705e2d070ee/11736196530.pdf
    • https://s3.amazonaws.com/sukobogixe/33578690124.pdf
    • https://uploads.strikinglycdn.com/files/37456c59-79dc-40f6-a948-b9bafbe38532/discord_friend_request_not_working.pdf
    • https://uploads.strikinglycdn.com/files/eba803b5-f781-4d3f-96c0-79623354270b/sql_server_stored_procedure_if_exists_update_else_insert.pdf
    • https://uploads.strikinglycdn.com/files/7b64577b-581e-4fbd-8539-55dde1683ed1/nuluraxinexukuz.pdf
    • https://s3.amazonaws.com/sazixipame/album_jet_vive_la_aventura.pdf
    • https://uploads.strikinglycdn.com/files/73ee4dac-2b5f-4efd-a28e-0bfe8a2ed986/movonowovorusezugiv.pdf
    • https://uploads.strikinglycdn.com/files/94b65541-ea64-4e12-954e-77aed3d03be6/wuzavewexekafejawumim.pdf
    • https://uploads.strikinglycdn.com/files/9d37c760-949c-49c6-bc16-b73219e4defb/14020773874.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000635c.bin
a7333cd182b8ad8d6a1eeaef091d417442c90030179820a82097bccc9d89b78b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 5172 bytes
font_01_sfnt_off000074ee.bin
9e6efaf55d54645ced19db9235ceed8ec63b8297d522f45c64cf237f7f2c941b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74EE 10512 bytes
font_02_sfnt_off00009903.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9903 4324 bytes

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