Malicious PDF — malware analysis report

Static analysis result for SHA-256 32acc7dff0f5acf7…

MALICIOUS

PDF

90.2 KB Created: 2021-03-25 13:01:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 747f697fd617c7e402af9fdcd5bf10a1 SHA-1: 91ea1f9594c8c93ff33eea010636fc2e43630867 SHA-256: 32acc7dff0f5acf7977480e6d0553e1356c7f44f00714291ad408d97fd4c3f5a
96 Risk Score

Malware Insights

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

The file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URI points to a suspicious domain, suggesting a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with common phishing lures designed to redirect users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://golowaki.ru/123?utm_term=shyam+baba+image
    • https://cdn-cms.f-static.net/uploads/4485010/normal_6036e041b7303.pdf
    • https://cdn-cms.f-static.net/uploads/4374522/normal_601d59c34f6ac.pdf
    • https://cdn-cms.f-static.net/uploads/4479917/normal_6017415a64711.pdf
    • https://cdn-cms.f-static.net/uploads/4460975/normal_6058b39677313.pdf
    • https://cdn.sqhk.co/sosobita/QJV11ii/attendance_sheet_template_for_training.pdf
    • http://nofovukad.iblogger.org/41618253649.pdf
    • https://cdn.sqhk.co/xijogedobu/fPghgir/air_france_airlines_flight_status.pdf
    • https://static.s123-cdn-static.com/uploads/4450641/normal_5ffea5336709f.pdf
    • https://static.s123-cdn-static.com/uploads/4450139/normal_5fdf1ef1cbec3.pdf
    • https://cdn.sqhk.co/delopomixaba/hbwFyig/sensitivity_for_pubg_mobile_without_gyroscope.pdf
    • https://static.s123-cdn-static.com/uploads/4487416/normal_5ff0bbf6716ae.pdf
    • https://cdn.sqhk.co/pomodizad/ijhi3ia/74191105671.pdf
    • https://cdn.sqhk.co/lugizumevemu/oPihhez/77543967603.pdf
    • https://cdn.sqhk.co/tajudozizif/aridphe/baby_blue_white_and_silver_balloon_garland.pdf
    • https://cdn-cms.f-static.net/uploads/4424982/normal_602ec78a4c7b4.pdf
    • https://cdn-cms.f-static.net/uploads/4454422/normal_602d922c9bf85.pdf
    • https://cdn-cms.f-static.net/uploads/4387938/normal_605315cedc109.pdf
    • https://cdn.sqhk.co/kajipazuto/jzHhbhb/41103965522.pdf
    • https://cdn.sqhk.co/wavoperusina/hbijqjb/nuvinefalokakenipil.pdf
    • https://cdn.sqhk.co/fugutexifi/gfYMrhe/79098919844.pdf
    • https://cdn.sqhk.co/xagunetoxa/IBLgfgg/cash_flow_reconciliation_template.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://zivuneko.epizy.com/never_going_back_again_sheet_music.pdf
    • http://nevegeb.rf.gd/rufejevavolo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f118.bin
6e27d7945a5ea2de788112c13cebd69f8422ed2944a77e0c6756d3a856404b79		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF118 5140 bytes
font_01_sfnt_off0001027b.bin
8c7bc84aae565bd4c85b7245914ec04e73b0420501154cf9c446f30a01d5b029		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1027B 9900 bytes
font_02_sfnt_off00012445.bin
226a8e4e528c820945b068501793868e9b71e899c703a7ad804f9a2f424011a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12445 16384 bytes
font_03_sfnt_off00013a4b.bin
ef44232352c22a7f27bd4daa0af5ab9df31d9b0fe80e4b10dad8a7e57c044bba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A4B 10416 bytes

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