Malicious PDF — malware analysis report

Static analysis result for SHA-256 025fbabc4fd6931c…

MALICIOUS

PDF

80.0 KB Created: 2021-03-11 08:11:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7cfbbd57ffcbcce1b47d45a312bfbed SHA-1: 7db2c7a744ca8ec447d9cfa8dbc4f4bc9b200da5 SHA-256: 025fbabc4fd6931cb14b5a2fc4131c00618c84268551f0551c48f570d94248ea
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading a malicious payload disguised as a document. No scripts were extracted, but the overall structure and embedded URI suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://lozipotod.ru/award?keyword=teoria+del+realismo+juridico+pdf
    • https://cdn-cms.f-static.net/uploads/4408984/normal_601b916087fde.pdf
    • https://cdn-cms.f-static.net/uploads/4418191/normal_6028f9ae3aeff.pdf
    • http://mamafiposorugul.sportsontheweb.net/xukutaxalefosegarujonute.pdf
    • https://static.s123-cdn-static.com/uploads/4481527/normal_5ff01fb1d2f07.pdf
    • https://cdn-cms.f-static.net/uploads/4460954/normal_6014821eab923.pdf
    • https://cdn-cms.f-static.net/uploads/4369901/normal_6011c3da2cf79.pdf
    • https://cdn.sqhk.co/gabebutiz/jihjaDJ/expanse_season_5_trailer.pdf
    • http://javaxirivibewi.mygamesonline.org/debitu.pdf
    • http://nuloriwilorij.scienceontheweb.net/the_blind_side_movie_storyline.pdf
    • https://cdn.sqhk.co/luzigagoguna/bH8WmfR/gupin.pdf
    • https://cdn.sqhk.co/takularozo/ifLxifQ/stickman_revenge_3_hack_mod_apk_download.pdf
    • https://cdn.sqhk.co/wuxobilan/XhcOjc8/32345606546.pdf
    • http://sofebitaxed.iblogger.org/guwahati_weather_report_now.pdf
    • https://cdn.sqhk.co/delopomixaba/2haghzx/14829360535.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/muvevanepen/english_test_for_grade_6.pdf
    • http://rivenoke.onlinewebshop.net/polediwobinumetafuna.pdf
    • http://pudekixepubaz.epizy.com/36319241106.pdf
    • https://s3.amazonaws.com/waxapoz/semilakiwupazokez.pdf
    • https://s3.amazonaws.com/vezumobigodub/biloela_state_high_school_formal.pdf
    • https://s3.amazonaws.com/musoxifuvitalo/cervicalgia_treatment_guidelines.pdf
    • https://s3.amazonaws.com/firudegix/sinunarawuramubibiseb.pdf
    • http://zafurug.epizy.com/mutebatulofili.pdf
    • https://s3.amazonaws.com/julexekubaj/26079722293.pdf
    • https://s3.amazonaws.com/fasudikek/channa_mereya_movie_full_hd_filmywap.pdf
    • https://s3.amazonaws.com/xewamejixolefaj/sapon.pdf
    • http://fufajapikimideb.epizy.com/how_to_use_a_rapitest_power_tester.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb01.bin
4e906ceca0b8eae27054cb05c72743469dfdfda8fa2a9036a6292ae161c452e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB01 5328 bytes
font_01_sfnt_off00010d0f.bin
519330699bd4f2a7c1d69ffd25f765f0a29d4b1e5748e71c1b87851e3c83ad9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D0F 11440 bytes

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