Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6e0acd6bb6e767…

MALICIOUS

PDF

68.5 KB Created: 2020-11-29 10:15:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cbb838da4cd197360487ccded1ddec0c SHA-1: 315950b11ce63ec67fbb4eb21eb120e2104cd2a0 SHA-256: 7a6e0acd6bb6e76733729f0ce796e17865bac954603ac847edb9ce0cc1fac24d
214 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure related to 'ffxiv facet gear recipe'. The presence of multiple PDF links and a malicious redirector suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/123?utm_term=ffxiv+facet+gear+recipe In PDF document text
    • https://cdn-cms.f-static.net/uploads/4401505/normal_5f9cd5d67ba67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393901/normal_5fac4f396ec11.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/6763278.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vibove/study_guide_the_periodic_table_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fosawef/rirolotexogan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20d66b04-03fb-47fe-affb-7bfa675d8cee/confirmation_sponsor_letter_to_candidate.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/animals_flashcards.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/puzota.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23e9702e-dbda-49cf-b606-7521b9a78997/32537202598.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/ballade_pour_adeline_noten_kostenlos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dadb84f8-9255-4dcf-944c-7b4b6d64d9c4/apk_google_account_manager_for_kindle_fire_7.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/download_naruto_english_dubbed_episodes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9816e7cc-0f6c-4393-a8bc-1b23944be906/32722930306.pdfIn PDF document text
    • https://s3.amazonaws.com/naramuro/making_connections_3_answer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5424fd9e-1567-4df9-9232-bd5eeaa2f394/everlast_mma_omnistrike_stand_assemb.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_off0000d0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A7 5056 bytes
SHA-256: e46e35b87cfa062697c3b7c3060e7897a6c21b928e5c73e53c40d09d734bf176
font_01_sfnt_off0000e203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE203 10436 bytes
SHA-256: 65a66592ded63fe00fe280a65a46d3787e95635c2d1a720789b5313e1041d347

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