Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce28c5633990643d…

MALICIOUS

PDF

61.5 KB Created: 2020-12-04 22:13:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c1702959e9687fc786e3b7a1da8b6239 SHA-1: de8807fd45f1cc7ebc7008b344b1e13bce838454 SHA-256: ce28c5633990643dea72eefa1677ca8fa9d4f4bfb87751c9fd30526d323c7784
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 0.9996

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://traffine.ru/aws?utm_term=inverse+trig+derivatives+worksheet+with+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370529/normal_5f8b567fdb5ec.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/ropidadegaxut/zuxawovawomifopumij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd072cdae50a014588a89d/1606223661064/wabunefezogazejoxexis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0baae3dfdd95b60d439b1/t/5fc2b20d9b1ed0353834f380/1606595087815/63709061370.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0b4e4c89e1c4b8fbd626a/t/5fc1f7fa5147b14804792c97/1606547455891/lonababavulapurujaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/download_planet_zoo_cracked_torrent.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5458bbdb33045eedefd2a/t/5fc64f1b2dd96f5918c3bfd4/1606831904526/daddy_long_legs_movie_cast.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc59b9da13a450bab147422/t/5fc992722ae1264a038aa26e/1607045747056/genesys_dice_set.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10afc403f5353fd968892/t/5fc5035ff81c9a2a0c404187/1606746975119/formal_statement_of_religious_belief_crossword_clue.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e1448ef7301f8b1097bc/t/5fc37fbb61e25426e1a4f67a/1606647740382/la_jolla_tide_pools_chart.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe03553485235c868bf00d/1606288213758/juremejevogavifusili.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16096756-0b3b-4418-a45f-44c486c3d04e/zijizonaxe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1976bb8467722f1d927cd/t/5fc5857f173fb5383b604528/1606780288759/vorisewezebogozipe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf8fe3f75b166439ad9f3/1606285567671/whack_your_burglars_unblocked.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_off0000b774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB774 5208 bytes
SHA-256: 2e08db169af7bbfd51a0595bf7f331763f9d0cdb29a398147257e2772d1746d8
font_01_sfnt_off0000c93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93A 9320 bytes
SHA-256: ca50d9c1374f7f582d9959c9e7c664e4eee8199c48b5775705c6365a5d867ef4

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