Malicious PDF — malware analysis report

Static analysis result for SHA-256 4727430a04244410…

MALICIOUS

PDF

80.4 KB Created: 2021-03-15 22:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 817b0e92e48aee2cb932e954f3908dba SHA-1: 160d74b54356b27ee883684b1372b8586cff6f00 SHA-256: 4727430a042444105549133b17539fcc1479aa9a1b23a6f4e45d126834eaf265
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a site offering a 'clash royal mod apk 2016', suggesting a social engineering lure to trick users into downloading potentially harmful software. The PDF structure itself does not contain executable scripts, but the embedded URI is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/wix?keyword=clash+royal+mod+apk+2016
    • http://wusator.mygamesonline.org/bubeb.pdf
    • https://cdn.sqhk.co/lejesapazud/geLpShG/61000191425.pdf
    • http://nelilovodik.scienceontheweb.net/how_much_can_a_dodge_ram_ecodiesel_tow.pdf
    • https://cdn.sqhk.co/dadirowuj/92idgeF/28470896461.pdf
    • http://funasowuto.getenjoyment.net/they_say_i_say_4th_edition_with_readings.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://naxefugoxodikow.atwebpages.com/class_5_math_guide_book_download.pdf
    • https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_2b8e431aeee44dfd896683aa889b56c2.pdf?index=true
    • https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_ecc170b4c8054419b488372722aab0b6.pdf?index=true
    • https://s3.amazonaws.com/rekorewexidiwo/93132376769.pdf
    • http://zowozuzibo.epizy.com/78208098768.pdf
    • https://s3.amazonaws.com/wuvepilamamuse/nomodefusekewagopitilovot.pdf
    • https://2ed9768e-82a7-41f7-bc91-4b86d8d7aa0f.filesusr.com/ugd/bdbd91_0f3c1ecf7b3a42c7aca04c63421fdea2.pdf?index=true
    • http://guberiwexoza.rf.gd/paganumejolesakutibon.pdf
    • https://76c9fb28-c10e-4950-85be-37de24a2ede8.filesusr.com/ugd/fa32a6_a433b45a2fe140ccb5babf4dcbae89cf.pdf?index=true
    • https://972af30b-04c2-4618-b911-83ba0b7fef9e.filesusr.com/ugd/84a5c6_b868ebbc8bcd41889e4b3a7c7dbb8114.pdf?index=true
    • https://s3.amazonaws.com/wofaxil/attack_on_titan_season_4_episode_4_release_date_sub.pdf
    • http://kedokonox.rf.gd/fl_studio_amapiano_packs_free.pdf
    • http://vubolax.epizy.com/weruw.pdf
    • http://nukuwura.rf.gd/73807118303.pdf
    • https://s3.amazonaws.com/zasepo/convert_wav_to_midi_ableton.pdf
    • http://lubesugoninop.epizy.com/demawogefajazibivejabu.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_off0000fa23.bin
6f664443816b817555f86486426230516967ba86b09ceded266a3340616da97e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA23 5748 bytes
font_01_sfnt_off00010d94.bin
c76059a2f604ccef4c1318659cbb94521c0239b6a523cce78015f8e03bed6f60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D94 11376 bytes

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