Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae32041aabbf51fc…

MALICIOUS

PDF

77.3 KB Created: 2021-05-16 20:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fde09cc097bd99f9d38da02cd1ba517f SHA-1: 63f43a0daae96aaf7682b05d1242b44a3b8859d8 SHA-256: ae32041aabbf51fc2cd23a03fba294af571bd673b910fd251c1ac963b0e2ae87
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous embedded URLs, many pointing to suspicious file hosting locations, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely intended to trick users into downloading further malicious content.

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://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/e73ae058d0090a69cbbb9ae9824a1696/wuwujokoxobujizexedered.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871e73d1a16---gifupoj.pdf
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b9f5abfe6---sakorefuparus.pdf
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f852f570bf---datuvirakajonagirovodukej.pdf
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6ae5c36e1---60611453781.pdf
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e60399e87---kizilededurate.pdf
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/hql9q7htlge137jcfdk7ti69o4/wepopejuxufafuzifedasofa.pdf
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/bbdb8e97368371ffb664fb928bc5ad74/gofomemefofonegera.pdf
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609da4d26f4e4---41226874709.pdf
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7793e2928---nidimezogulajegebonomige.pdf
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/svbt5mvvvej37q1d5r630lf8j3/susomakapo.pdf
    • https://ludifrance.fr/userfiles/file/90819312390.pdf
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/7v3jre626c19854gfrh7n04u53/xutenuneda.pdf
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/896aa9af1fbaff9bb9ec1f3225f400a9/56478978068.pdf
    • https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/74a29cfc967d8dccc6600373f9bbb3b5/jitagifusubirusenafim.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=2+bestanden+samenvoegen+tot+1+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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3fe.bin
4b7ab5cbe87b163e9ef4cb7fde32e1bde8e365601edaccec9145d37d551214ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FE 5260 bytes
font_01_sfnt_off0000f5cd.bin
7adfc38f10e7ae77bd5c72350b194d7ebd24b45554f84b54629d796a9c093dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CD 10840 bytes
font_02_sfnt_off00011a2c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A2C 4324 bytes

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