Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a4e234c9cfaa664…

MALICIOUS

PDF

67.6 KB Created: 2020-12-22 17:03:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 9a1afbdaf436e373576f4410ef0e41f5 SHA-1: 156ea32c5be3787973099fd7be7e530a559d6ec7 SHA-256: 1a4e234c9cfaa6644bac33b5f2c94e3cb5dd05e5c7843a049d56a855e0deee15
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://traffset.ru/strik?utm_term=mod+pizza+nutrition PDF link annotation
    • https://kegilosibumu.weebly.com/uploads/1/3/4/5/134513635/fojizis-pazuwix-nuxutonubojeb-xages.pdfIn PDF document text
    • https://ruwizugaxuluba.weebly.com/uploads/1/3/4/7/134759804/kurozivane.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1ffb0be-b7f2-4590-bbb1-c4a1f985f8ab/64365054405.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2be322e537a05ef1504ba/t/5fc8625b6652ad59ec275075/1606967899427/save_earth_full_hd_images.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3817916f6d44b07cf1e26/t/5fcb979c551bdc47e7ab1d89/1607178144382/28325807682.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd37863f59a2572d8ffde5/t/5fddbce7f3f88b619ffaeb25/1608367336469/hardness_test_of_metal_lab_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec10f5a-cd5f-4f40-b77f-a353c7ca8415/amperimetro_de_gancho.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5328aa6d-c1b8-43d8-b8ea-03ff9844a89b/61858000993.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7804cf59f035d0ccd7531/t/5fcab37f0d05e301b0103689/1607119743199/gizaguwexudijowede.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e28c8614-0f7c-4f8d-a232-1a63afbbced4/gta_v_cretsiz_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8aacf2e-627f-4d52-bf7e-a5bf939e1c66/words_that_rhyme_with_allison.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce900044c5de4abf39f267/t/5fd646cbde5b1220c027065a/1607878347870/soxakelipa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13debbd14ff0dd29efe80/t/5fc50d9b9d793648402daba5/1606749596270/jesalolurilegunudevimi.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_off0000cdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCD 4796 bytes
SHA-256: 02c1bf24826793ace2ab604a99d42656df1ddbdcb797c9cb7d3cb1f2ca0ad284
font_01_sfnt_off0000de3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3F 10436 bytes
SHA-256: e002cf03cc33f3fc3feb8b4f88125763c0c75161a8fced76527d4b18a4f3f57d

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