Malicious PDF — malware analysis report

Static analysis result for SHA-256 758f6e44dc197667…

MALICIOUS

PDF

50.9 KB Created: 2020-10-26 02:25:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-28
MD5: a0408d5628937038365d13cfa4296db0 SHA-1: 687fe0a3f63f7c3cf80ae5001397fa23ce830071 SHA-256: 758f6e44dc19766751b0037fd91cf4c6eaf4b2a5ded53df1451b6e07002c1652
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically directing users to 'https://cctraff.ru/123?keyword=wow+shaman+guide+pvp'. The document also exhibits characteristics of a PDF link farm, containing numerous external links. While no scripts were extracted, the presence of malicious URLs and the PDF structure strongly suggest an attempt to redirect users to harmful content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/123?keyword=wow+shaman+guide+pvp In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5f88c5ef022bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378848/normal_5f94a187289f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_5f8a6b6a21712.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394071/normal_5f9252e1afd57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381964/normal_5f8d0e3d11e53.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f484d2e7-8346-4132-8b73-a5bb5f33d17a/1_to_100_numbers_in_english_words.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2fae3e7-1041-4372-95c2-6d8e7ae7650b/54578637418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0a44311-f543-4424-a690-949800beb41d/32104279813.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/bastien_piano_for_adults_book_1.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/joint_distribution_conditional.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/saxafuzofinezabedobaj.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/tesikumolatazofajo.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/active_voice_and_passive_voice_in_english_grammar.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/puzodogewulebazomixuxodew.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/alternative_dispute_resolution_robeniol.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/ayurvedic_book_bangla.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/89378004409.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/ruwanokewogupogilusareb.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/general_knowledge_questions_and_answers_for_interview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/21913906321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/17412401061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2511/2477/files/graphing_linear_functions_worksheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0C 5212 bytes
SHA-256: 7a6dc8efdd5dbc1869c302bdc70d23e6e85c0f16e4ab4c85c5e0dc9686af805a
font_01_sfnt_off00008db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB5 10044 bytes
SHA-256: 5564d477bf88dd63e4c2c8ce6a66f96370c3c68340d4a85bfedfa813187f6e3e
font_02_sfnt_off0000aff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFF2 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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