Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2fa5798a22c036…

MALICIOUS

PDF

70.7 KB Created: 2021-04-02 07:46:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09747696442ba523e1409230417e7921 SHA-1: 0e516abff65a3ba7defb1ea19212c94c129303c9 SHA-256: cd2fa5798a22c0362e8c60273c00886a99b6ec2c82e15cde9e443a057e1f31fd
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://golowaki.ru/wix?keyword=plazma+burst+hacked+unblocked+google+sites', which is likely part of a phishing or redirection scheme. The document body, though heavily obfuscated, appears to be a lure related to game hacking, a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/wix?keyword=plazma+burst+hacked+unblocked+google+sites
    • https://cdn-cms.f-static.net/uploads/4375690/normal_60495abf26a86.pdf
    • https://cdn-cms.f-static.net/uploads/4460946/normal_6027dcbe3d0e0.pdf
    • https://cdn.sqhk.co/zewulutaj/jghigju/video_shrinker_apk.pdf
    • https://static.s123-cdn-static.com/uploads/4467926/normal_5ff277e5399c0.pdf
    • https://cdn-cms.f-static.net/uploads/4451377/normal_6037f10689c06.pdf
    • https://cdn.sqhk.co/rapawaferew/Cjbibhg/62817245301.pdf
    • https://cdn-cms.f-static.net/uploads/4376382/normal_602fb30d5ac12.pdf
    • https://static.s123-cdn-static.com/uploads/4465128/normal_5fe5d84585ccf.pdf
    • https://cdn-cms.f-static.net/uploads/4403264/normal_602107ffa572c.pdf
    • http://dorightpress.com/sony_hx400v_owners_manual0rkpl.pdf
    • https://cdn.sqhk.co/dojaxeje/gdibJih/state_park_camping_in_florida.pdf
    • https://static.s123-cdn-static.com/uploads/4383156/normal_5fcca95cab21f.pdf
    • https://cdn-cms.f-static.net/uploads/4425227/normal_6030098c1ee54.pdf
    • https://cdn-cms.f-static.net/uploads/4409238/normal_605b1085b4103.pdf
    • https://cdn-cms.f-static.net/uploads/4409604/normal_60568eb97d506.pdf
    • https://static.s123-cdn-static.com/uploads/4481166/normal_5fcc397e528a8.pdf
    • https://cdn.sqhk.co/sivumazudi/sybjfhb/bet365_account_hacked.pdf
    • http://morj.space/gojinokubetegukirufezisi2o8z2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/cff8c2e5-531e-4ebc-ac61-87b3a595b084/vavevodanijujawiri.pdf
    • https://uploads.strikinglycdn.com/files/2a6bc70f-061c-4efe-8eb8-dfdc461b1df8/honda_generator_eu2200i_companion_inverter_generator.pdf
    • https://uploads.strikinglycdn.com/files/3a223013-4720-4848-a693-feb481744b0b/what_degree_do_you_need_to_be_a_sports_nutritionist.pdf
    • https://uploads.strikinglycdn.com/files/c312b95d-d432-4570-bf90-5a2460cc669a/ink_cartridge_for_hp_deskjet_f4580.pdf
    • https://uploads.strikinglycdn.com/files/1490091d-e188-4369-8947-c4c385aabd02/kenmore_he2_gas_dryer_control_board.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_off0000d397.bin
91ed8f5f7abd6b61c0c10a721652009ec49b0dfc4063eaf9ec57484f4f4549ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD397 5608 bytes
font_01_sfnt_off0000e683.bin
8b3216529ce236545d47c6b25c9921cf28639256a3b9e9ee65ad1dcb54e95745		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE683 11612 bytes

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