Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9cc66541311dd6…

MALICIOUS

PDF

78.0 KB Created: 2021-07-16 14:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: be10267305b9821a71831f150be703c4 SHA-1: 5c7d9f232822449cfa3045015164abed0dd27ae7 SHA-256: eb9cc66541311dd606a3df4be520c847578e75f99983b5a779bd47ffc4d69d11
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to redirect the user to malicious content or download further payloads. The obfuscated document body and the nature of the heuristics point towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://feedproxy.google.com/~r/razvivatel/yapz/~3/7R6buoffwiA/square?utm_term=only+god+can+judge+me
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed8edefb5306426ed0ac39/1626181342679/56383444406.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec99e269d4b6336148f109/1626118627095/theme_of_once_upon_a_time_by_gabriel_okara.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f07d6e9383a8111692cdd1/1626373486160/jingle_bells_keyboard_notes_with_letters.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e956aa787dde1a90afbbcb/1625904810272/xatiziradedajawo.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee3651aa539923b585e3b1/1626224209828/dispositional_flow_scale.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda4c7573bc4731c8a20c4/1626186951209/tail_waggers_howard.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f05a7de74ffe73c2034550/1626364541648/how_to_remove_password_of_aadhar.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f04f37b7183f40b01e6239/1626361655280/child_with_school_bag.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec7990cc9768212241ab19/1626110352486/how_to_hack_a_mobile_legend.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec86d6d0153e73bf8c3216/1626113750428/which_type_of_roof.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce44.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE44 16792 bytes
font_01_sfnt_off0000e65b.bin
6b7e1348ac99e77d0f5f695daeac69b44f59a7ad28142f2b3fc6b3b8f5028048		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE65B 10624 bytes
font_02_sfnt_off0000fe7a.bin
b7405124f920cdacce8f4951712e29f7c39e3aba94d8c7f81e84997c5ea51eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7A 16948 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.