Malicious PDF — malware analysis report

Static analysis result for SHA-256 61605e794e5f7a2f…

MALICIOUS

PDF

121.7 KB Created: 2021-03-13 12:47:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ea1d054b9fad290729c35eedcf44dc4d SHA-1: 58f2a74f5cdb55eabca286add27fed52cfc8f3a5 SHA-256: 61605e794e5f7a2f51d6d7efdc9e2ac6eb0d3abe78fe448ac64739c0d5a9b122
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://dugedepap.ru/123?utm_term=full+form+of+iqvia PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4404290/normal_5ffbae28267c1.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/73jaRih/13378168901.pdfIn PDF document text
    • http://tuguxanofa.iblogger.org/bellota_font_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424935/normal_5ffe437174140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445726/normal_5ff2643009205.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379960/normal_5ffc832d4c009.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_6039e2a6a6ab2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369328/normal_5ff5cf813dd92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452193/normal_5fd134abab693.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416787/normal_600079c371aaf.pdfIn PDF document text
    • https://cdn.sqhk.co/feletitami/KhcWYtX/mermaid_photo_backdrop_party_city.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392451/normal_6023b5d268c17.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/Egdvahf/25275059820.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mimugoso.rf.gd/busaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/957d4ec2-ef44-439c-bfae-2b84fb25b09b/36055922610.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a279313-e027-4edf-bc75-ac42cc7beb7b/literary_devices_definitions_and_examples_of_literary_terms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/659fc991-8e8b-4659-99bf-06976229caa6/mitchell_auto_repair_labor_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cda95a2a-763b-4106-9699-cf4696c5107a/keliwanatave.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54a0514f-4d03-491e-939f-1f073f7ff502/new_york_state_map_usa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca5dc40e-b6fb-49bb-bcf1-8b12ab580d27/boston_market_open_on_christmas_eve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7cb289d-1bef-4613-bfe2-49a841ea9604/what_is_ls_true_name.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_off00019e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19E78 4876 bytes
SHA-256: d587be05a8416bf8aaf7fe6a2550c44888a49ba2cf715066d0ab41930335db6a
font_01_sfnt_off0001af03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AF03 12412 bytes
SHA-256: 54f73577e52f9ff4fa378d2ba24580e28f1da356c6d8034a06fc94cb9f7e1397

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