Malicious PDF — malware analysis report

Static analysis result for SHA-256 120ba548d4c93eab…

MALICIOUS

PDF

42.3 KB Created: 2020-10-25 21:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1213e2ab0a948e4969743e386c6fc969 SHA-1: 14fb9e64fe061230ed420d0485ae5f64b059d98f SHA-256: 120ba548d4c93eab4c215726e8113562eab99f7621c8a5a805ebf84bc39bec81
234 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF document contains a lure related to transferring data between phones, directing the user to a malicious redirector URL. It also exhibits characteristics of a link farm, with numerous embedded links. The heuristics indicate a credential phishing attempt, specifically targeting MFA or one-time codes, and a lure to install a browser extension or update, both common tactics for credential theft and malware installation.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ttraff.com/123?keyword=transfer+data+to+new+iphone+from+android In PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/6210515.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/9240104.pdfIn PDF document text
    • https://fizolapojola.weebly.com/uploads/1/3/1/3/131383549/lumopuwabuvafikex.pdfIn PDF document text
    • https://titumakusijuvap.weebly.com/uploads/1/3/4/3/134353199/vusumixovusiju.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/9247351.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/defobetaxupib-foxofuxuti-lowodedepanu.pdfIn PDF document text
    • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/8c9fd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3678/4812/files/using_sensory_details_in_writing_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6476/5845/files/7.2.5_homework_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1674/1283/files/plate_tectonics_map_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2464/7061/files/orthographe_progressive_du_franais_niveau_intermdiaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8488/3134/files/heat_of_vaporization_formula_water.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9480/9507/files/92736567626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afc5d3b2-9c60-4c54-bae0-41bb8e623d79/24195145040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/018fb5ed-98c4-42a2-8aa9-d86d9814e2c4/dont_give_up_peter_gabriel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ec381d6-4b53-4f5a-87a0-c0e454df73b1/zojev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2846/1206/files/plc_scada_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2480/0673/files/7037569775.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_off000065c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C5 5288 bytes
SHA-256: 2aa2bbe47a951945e1baf799c596aec6915576a7953af3b606e4819a55a73de7
font_01_sfnt_off000077a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A7 10828 bytes
SHA-256: 622d76bec4477f0b1f517ebe62e66b68d3dd570cc54d48650cb0877fdbefdc49

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