Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e20a527f93af3e…

MALICIOUS

PDF

154.5 KB Created: 2021-03-15 05:55:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 7ac761ae46300bad5ed6c55f9b8919cc SHA-1: 40bc70c7f222a9db772c5d1d00e053e8453c63aa SHA-256: e2e20a527f93af3e4e9793568ef3985bfe8becf0aeb9c493e6391db2fe6df101
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, disguised with a seemingly legitimate filename. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/123?utm_term=types+of+laser+cutting+machine+pdf PDF link annotation
    • https://gajitiromivalot.weebly.com/uploads/1/3/4/4/134475956/5177ebba1.pdfIn PDF document text
    • https://cdn.sqhk.co/kugugofawaz/jdgd0I6/zonuwazuj.pdfIn PDF document text
    • https://rujupiben.weebly.com/uploads/1/3/4/8/134852491/ludodedekeviporobi.pdfIn PDF document text
    • https://cdn.sqhk.co/sabepakofo/ijicOje/arkadelphia_high_school_football_field.pdfIn PDF document text
    • https://nedixizudunosil.weebly.com/uploads/1/3/1/4/131483200/wimotaxagidan_lezivamom.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/cphdhii/best_cheap_gaming_monitor_for_xbox_one_s.pdfIn PDF document text
    • https://cdn.sqhk.co/nakotuba/MJeiagd/lucky_songs_download_telugu_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosobupis/6hdTpid/43752146302.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/petuzutemixuvod/xibebaxudobonelugin.pdfIn PDF document text
    • http://gilesab.rf.gd/the_rising_of_the_shield_hero_light_novel_volume_14_english.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/83136836922.pdfIn PDF document text
    • https://457cefd1-268f-49c0-9ca4-ced5ac281e6b.filesusr.com/ugd/983758_9ebb9c7dfd1646b4b1557cec1c53754d.pdf?index=trueIn PDF document text
    • https://a765b249-d442-4b07-8ea9-8318d996b894.filesusr.com/ugd/902d29_ec4d289533f446308aa94f3aa39e0cce.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jebokizez/listening_test_4_answer.pdfIn PDF document text
    • https://748e62c5-a849-4dff-87e7-3b5f74cb3522.filesusr.com/ugd/0df896_a0a5144ac2db4a5bb3f445c6961ed05c.pdf?index=trueIn PDF document text
    • http://pasasowagore.rf.gd/garmin_gps_128_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/90268273211.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002048a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2048A 5620 bytes
SHA-256: 66aeb4fd5ea2b8aa5e9ec395b093a9e0d5531fdba96e88cd940be033528aba3b
font_01_sfnt_off00021786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21786 15820 bytes
SHA-256: a5649e7d2dcc02c1cff5e7b3d9a10dfc45f4505971aa53f2cd12ce45120c2c26
font_02_sfnt_off000246b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246B6 16060 bytes
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833

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