Malicious PDF — malware analysis report

Static analysis result for SHA-256 93175e1a5eb14468…

MALICIOUS

PDF

72.3 KB Created: 2020-12-25 02:09:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 118ab4168700bf89afca5b02f4ab2e00 SHA-1: 6e431e425172a1a9dcd6a20d9793ac0b4484efc6 SHA-256: 93175e1a5eb1446824a73c7afae43c8a8122359043ae07de98af052b06f42533
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords related to 'apk money' and 'mod', suggesting a lure for software downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/aws?utm_term=archer+mod+apk+money
    • https://cdn.sqhk.co/tiwumixe/Vhg4Vii/business_card_creator_near_me.pdf
    • https://cdn.sqhk.co/dudazume/AgghiNl/wefubisuviviroter.pdf
    • https://cdn.sqhk.co/vogoxaginoje/ByJgdgj/raiden_legacy_android_cheats.pdf
    • https://cdn.sqhk.co/bumadawab/SuwRdtp/american_football_games_february_2020.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/cbca15a2-2e93-4011-84a0-54581125c616/35563558612.pdf
    • https://uploads.strikinglycdn.com/files/28f6b955-b8d8-4a2c-93e8-c2f6c971bb54/nctm_professional_standards_for_teaching_mathematics.pdf
    • https://uploads.strikinglycdn.com/files/37272094-ff3c-4e01-aa43-09c8dbb0a88e/vifuvojamaxi.pdf
    • https://uploads.strikinglycdn.com/files/1cc4db2c-722b-409d-9a34-14c2b6973713/gumijuw.pdf
    • https://uploads.strikinglycdn.com/files/beebf474-ec8b-4687-b8e9-8cab597952b3/lines_police_cad_rp.pdf
    • https://uploads.strikinglycdn.com/files/5607c6a1-f261-4da4-af98-6a3c0fb72deb/the_learning_connection_clearwater.pdf
    • https://s3.amazonaws.com/vekodupiwarobi/marvin_robot_meme.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_off0000dd7b.bin
fe31f8ae157e9acb98643cbd730c8505722d2f878a021a4d50d7fad9bbbf5ec3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7B 5256 bytes
font_01_sfnt_off0000ef39.bin
bebd1118a1126b4e1d325abd84b66ec3bd7dce12b04eb89dfc44c7b2a4a206c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF39 11064 bytes

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