Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b6af8b62230743…

MALICIOUS

PDF

71.4 KB Created: 2021-03-20 07:34:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ea61feb268dbf3198aa1103eddb0f983 SHA-1: e36fd3a3a6d598a8981e4890d302467ab0fc2393 SHA-256: c2b6af8b62230743f0d1f9ffda1cb56542162b1e8ae6acafd7b86a66fefe1305
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF that contains an embedded URL and exhibits characteristics of a callback phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a suspicious URL and the callback lure heuristic suggest the document is designed to trick the user into interacting with a malicious entity, likely for financial gain or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/123?utm_term=pemko+electrified+continuous+hinge+template PDF link annotation
    • http://fogimikolasot.iblogger.org/25714090314.pdfIn PDF document text
    • https://cdn.sqhk.co/kevapaboxer/cpii6FX/nawap.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/ic1ijib/plague_of_the_zombies_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/takulowizi/geZ0sGF/truc_de_grand_mere_pour_les_crampes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://299bc67c-4c9a-44ea-852c-18f2d39dca40.filesusr.com/ugd/954c8b_6a76ebebc01941a7a065cc1bc4d8fd62.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gebukil/oblivion_sheet_music_clarinet.pdfIn PDF document text
    • https://06e27459-8a58-4d01-a48e-f853eab966f6.filesusr.com/ugd/55f1a0_467711c038e242baa7c51407996be375.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/afe09889-f0d5-4941-bd1b-052264bfcd0a/honeywell_th6320r1004_app.pdfIn PDF document text
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_29a1734e975e417596fcdf721b9d4f0b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/figidireki/the_dark_tower_2017_imdb.pdfIn PDF document text
    • http://wizuzipureja.epizy.com/coordinating_conjunction_worksheet_3rd_grade.pdfIn PDF document text
    • http://jemexugovi.rf.gd/behavioral_corporate_finance_shefrin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c89a5771-f208-41d7-a4db-bef2e3234d76/singer_4423_sewing_machine_manual.pdfIn PDF document text
    • https://c1d61d78-9bae-425c-b347-ee91470fe4f1.filesusr.com/ugd/60933b_07fb8ec11d8745ae84ba3d7eeb261c25.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/14579364432.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/wiputugorifunepado.pdfIn PDF document text
    • https://84bd2c60-91d0-47b6-9565-6ae8a6593e58.filesusr.com/ugd/963627_4d24c765390142c2aac18c7f5afbc360.pdf?index=trueIn 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_off0000d792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD792 5636 bytes
SHA-256: 13568f88cf11670609f5390842bb74e38d6bc316fc945ca341739afbd9d94653
font_01_sfnt_off0000ea99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA99 11108 bytes
SHA-256: 31a449ba0cf27e40aa36216c3e1e6ae9636e824a286ea9e424374e2e6ffac103

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