Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5c5f0e6dfff5e9…

MALICIOUS

PDF

67.7 KB Created: 2020-12-04 13:55:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 80f43e258947e75216de84d18bd7ebdf SHA-1: 199a8747f8b26c901190b2f966f69f245f4a462f SHA-256: ce5c5f0e6dfff5e95a5dd7749d3d2f9d9d47779666acfc050f1ccf880a82ea09
96 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. 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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/aws?utm_term=from+now+on+piano+sheet+music+scribd PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453734/normal_5fc1cb7b3b251.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379970/normal_5fc97ce221b69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388160/normal_5f9770f028e7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f87e647f36a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5f88dbd3445f2.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/voxazedisula/august_15_movie_song_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/essick_humidifier_filters_ea1201.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/hernia_discal_lumbar_causas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b135bd20-79e6-42dd-81f4-65763ba987e7/63060511405.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4983f41-2551-4baf-ae2d-319f1c3870c1/mr_and_mrs_smith_2_full_movie_in_hin.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/mepavukojagekugoganena.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/up_vdo_answer_key_sarkari_result.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/51265354684.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/90698657047.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_off0000cd13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD13 5468 bytes
SHA-256: b5d52949f818efec450f2c4d70ddb105aea0fc2c630fee36dc350e76611d53e3
font_01_sfnt_off0000df8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8A 10072 bytes
SHA-256: 0ad5e7f340f37706d0b36a1a78848118720f3725555f54457a76a604408f5e13

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