Malicious PDF — malware analysis report

Static analysis result for SHA-256 974cfd54423bb0e7…

MALICIOUS

PDF

81.0 KB Created: 2021-04-16 08:37:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2217cf996c6d76c07dbaccb5d4d828a2 SHA-1: bb09cbe0385fb95589fa86bdb4c184eb284acea4 SHA-256: 974cfd54423bb0e7b36f7f8c608521dc8ac6aa414a09627ed40151c526caed06
156 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though truncated, suggests a lure related to 'the little white horse full movie', and the heuristics reveal a significant number of external links, including one pointing to 'ponafet.ru'. This pattern is consistent with phishing or malware distribution campaigns that use deceptive content to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/strik?utm_term=the+little+white+horse+full+movie
    • https://mobakuwi.weebly.com/uploads/1/3/4/4/134404075/nalipugefedogorabuf.pdf
    • https://cdn.sqhk.co/mukujoripu/he9gf4d/can_you_stream_fox_news_live_on_firestick.pdf
    • https://cdn-cms.f-static.net/uploads/4427809/normal_5fd1c72ebfa43.pdf
    • https://cdn.sqhk.co/vuwipabobatu/gjajhia/crack_bubble_shooter.pdf
    • https://meliwuka.weebly.com/uploads/1/3/2/7/132740471/bazisof-tonet-gemirexija-lobudubelubu.pdf
    • https://niregesop.weebly.com/uploads/1/3/0/7/130776037/fizidovovusi.pdf
    • https://cdn-cms.f-static.net/uploads/4375073/normal_6069674360218.pdf
    • https://static.s123-cdn-static.com/uploads/4408720/normal_60035840f2113.pdf
    • https://cdn.sqhk.co/xakurusuk/hiSENKf/webnovel_fictions_comics.pdf
    • https://ziwuwozapa.weebly.com/uploads/1/3/4/5/134517717/e3083212a9.pdf
    • https://cdn-cms.f-static.net/uploads/4418764/normal_601335ca59ce0.pdf
    • https://cdn.sqhk.co/sipobufiw/igghgcO/vavuw.pdf
    • https://pojojozujivalim.weebly.com/uploads/1/3/1/1/131164399/c807b5479c1bda.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://f6b99bba-f064-431f-ab68-6eacb91b2703.filesusr.com/ugd/35e1ce_b317a2e5830f4bcebac62d443436d5d6.pdf?index=true
    • https://ed8bc375-cd54-49ab-9ddb-988cb5b2fc3d.filesusr.com/ugd/3f3824_31b289f25a2e4b90b46b28d2993dc65d.pdf?index=true
    • https://e6343aec-df69-40e7-9959-3c0c55bf73c9.filesusr.com/ugd/6a9017_678ac770c9e54a7c9247885c99325e92.pdf?index=true
    • https://dc273c12-e125-4738-b2e6-b96bc4bd5eb7.filesusr.com/ugd/c8df25_879ebb10288149379791e9f85c4501d3.pdf?index=true
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_deca27f69eaa49daafbf2bf90aeca02b.pdf?index=true
    • https://72cee60b-533f-4fda-9f40-87b1bb6f0553.filesusr.com/ugd/590778_902b9bd64cb3462daa2721056bf9aa81.pdf?index=true
    • https://95a57b4d-a24c-4412-bd87-88f4f885d252.filesusr.com/ugd/011e4b_060c6f6fe7ef48cfa07f7c42d077f229.pdf?index=true
    • https://5e024257-ca51-40df-b6b5-a3104c7b7124.filesusr.com/ugd/97368a_2b29a5a5618e424392ef2a614cf75dd7.pdf?index=true
    • https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_20766e92896743bbba6aac013de66fb6.pdf?index=true
    • https://87da31d5-d184-45e7-a456-0ad082c8bd65.filesusr.com/ugd/55e94a_f25f451d2fb84903bddbdfcb20e8f867.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f28a.bin
066142112f8842a5bd3366cb14a403c5d4d11ad0a667cc4f166730a8074c4ec6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF28A 4676 bytes
font_01_sfnt_off00010287.bin
b94840358c4c7b106d9494469089ae9c1e60ac6bc29333c8e6db4849b76c00db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10287 11316 bytes
font_02_sfnt_off00012838.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12838 4324 bytes

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