Malicious PDF — malware analysis report

Static analysis result for SHA-256 e461a60dd0a2474f…

MALICIOUS

PDF

136.4 KB Created: 2021-01-16 20:51:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4f6417375c10a9c0e0737763fd5065dd SHA-1: a5c5281bfe05177d0695d7cf6591654ff235910f SHA-256: e461a60dd0a2474f8f9123acad1478326e30b34b3e31c2beccd30e1709667429
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains a lure for downloading a game, which is a common tactic for phishing or malware distribution. The presence of an embedded URI pointing to a suspicious domain further supports this assessment, suggesting the document is designed to redirect users to a malicious download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://traffnew.ru/wb?keyword=download%20street%20of%20rage%201%20for%20android PDF link annotation
    • https://site-1199436.mozfiles.com/files/1199436/72109217363.pdfIn PDF document text
    • https://site-1173244.mozfiles.com/files/1173244/logo_club_dream_league_soccer_2019_maroc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f8bab4155acb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379961/normal_5fc1359ece515.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/dRpibig/papetu.pdfIn PDF document text
    • https://site-1168299.mozfiles.com/files/1168299/alphabet_phontique_franais.pdfIn PDF document text
    • https://cdn.sqhk.co/livatunozasu/ysjexjY/rifumokewulokujepimaruwo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_5fc0c36b22c32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426090/normal_5fa3d160b96ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f9da9ff45207.pdfIn PDF document text
    • https://cdn.sqhk.co/mazavanov/LjgxXcX/tajokiwomo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001c711.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C711 22096 bytes
SHA-256: 36d00782340de159153eb0d54f98d14039f422184fec98fa083b7980051b330d
font_00_sfnt_off000174a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174A7 5004 bytes
SHA-256: 4d6f97279647a017339cac3df867c025e587be0bb54453c90cecd9bcf2a90bb9
font_01_sfnt_off000185c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x185C7 6900 bytes
SHA-256: c1dba8749fe0ac2c1186e6c94dec8d3c6cb0756bd639063ac5806a038152afd9
font_02_sfnt_off00019860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19860 15984 bytes
SHA-256: 8ec6d950265130bececce6f069ec2c66c7e72e99e129b4001c880e0e5aca621b
font_04_sfnt_off0001ed5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED5A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
font_05_sfnt_off0001fb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FB5A 6928 bytes
SHA-256: 9269860ac46e47aa16906bfb63a5b3dff9aff1eecb319ae02781ef29a50c5f33

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