Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a82cd4e1397d675…

MALICIOUS

PDF

78.1 KB Created: 2021-07-13 17:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0a6e89cfce149a54168fdb51d2cc0f11 SHA-1: e2dece45b1074f22b98f66f9db870f7edaac49bc SHA-256: 6a82cd4e1397d6754d9224c51141faa66180042d985385a8622365ea4aa77cae
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious intent, likely related to delivering a payload or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8678

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/sq/ugae/~3/pL_UGxDroB4/square?utm_term=getting+old+together+quotes
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ed5e1cc76d6b0ba00cdc07/1626168860545/84553268414.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e77ae12dff2e38461d3239/1625783009328/93771367188.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ece00ef84adf285beb22e7/1626136591147/newtons_laws_practice_problems_answer_key.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed3137bde79631d33cba87/1626157367650/wajus.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7cc1afdc75e32ab06d769/1625803802486/production_of_insulin_by_genetic_engineering.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed9482a73a263c31dfa485/1626182786812/synovial_sarcoma_in_dogs.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecb4885b92cb3d5f9ecb77/1626125448767/fawatojuxi.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_off0000d0e2.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E2 16792 bytes
font_01_sfnt_off0000e8f9.bin
bfd3380a2c7de0b5bfeb4afd8b5857983793f55339b79ac37dd931b7a1177568		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 10652 bytes
font_02_sfnt_off000100c0.bin
ec95b7a84984a0762b7845ceffa717a3b50500f3398d6b56dff1277180d1ef81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100C0 16928 bytes

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