Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 6007c2208a367d15…

MALICIOUS

PDF / .VIR

319.2 KB Created: 2023-04-17 18:20:54 Authoring application: Solid Converter PDF First seen: 2024-04-16
MD5: daba34bfdff0af28d89b6ba3d4b5577b SHA-1: 722ab9b463ef140b2974b242fb90306d127682f9 SHA-256: 6007c2208a367d15453babc322bcbdf16bea0424f3df073a64da36e7b98c529e
96 Risk Score

Malware Insights

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

The document exhibits characteristics of a QR code phishing lure, instructing the user to scan a QR code for business process-related reasons. The embedded URLs, while flagged as benign by reputation services, are part of the lure mechanism. The ML classifier strongly indicates malicious intent, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 5

  • QR business-process phishing lure high SE_QR_BUSINESS_PROCESS_LURE
    Document asks the recipient to scan a QR code in an HR, payroll, compensation, employee-handbook, DocuSign, or business-signature workflow. This is a high-signal quishing/social-engineering pattern even when the QR payload cannot be decoded statically.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://adservice.google.co.ug/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/2294c0f6-d737-4b16-8fca-94076227dda5/downloads/11067775335.pdf In PDF document text
    • https://adservice.google.com.jm/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/8132ab25-0d8d-4b12-b641-a149503a88d4/downloads/97198536200.pdfIn PDF document text
    • https://adservice.google.sc/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/d5c82250-c44b-4719-9520-42b3d8b69fc1/downloads/rusuwurerovifojazipoti.pdfPDF link annotation
    • https://img1.wsimg.com/blobby/go/9f52ff38-f943-4347-ac4f-aa22ea4c4f07/downloads/tuwadimukudikutegak.pdfIn PDF document text
    • https://adservice.google.ws/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/c0435ece-a888-43ab-837b-9a2497201d0c/downloads/38264913184.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/e692f54c-de5e-4520-85a8-c487fc21f607/downloads/90877220467.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/0473c096-b2e6-4936-a46a-fb82614eda7f/downloads/kinemaster_mod_apk_3.pdfIn PDF document text
    • https://adservice.google.nu/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/e76c8d1a-9246-446a-b4d7-f55a3b93ac68/downloads/87370494523.pdfIn PDF document text
    • https://adservice.google.at/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/2294c0f6-d737-4b16-8fca-94076227dda5/downloads/zewutisejeremogirefulajev.pdfIn PDF document text
    • https://adservice.google.dz/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/013bb962-1a83-4d95-a542-1c819cdf656e/downloads/27892760625.pdfIn PDF document text
    • https://adservice.google.hu/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/7d8700e4-fc8e-4a24-ac74-ced6f65f7ab7/downloads/oxford_word_skills_advanced_vk.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/24ec5924-f649-432d-bc84-142081ee16af/downloads/66296757276.pdfIn PDF document text
    • https://adservice.google.sh/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/d6403fff-5319-4cac-a451-a45ed64fdd62/downloads/pawns_in_the_game_free.pdfIn PDF document text
    • https://adservice.google.je/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/1b7f80b5-fb34-497d-8072-447feb44da09/downloads/gegusugegirerojugud.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0004c5d8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c5d8.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C5D8 15984 bytes
SHA-256: 5b69b74a8403357ba4c06a82aa99321101f87dae88f5898301390ba243ebc590