Malicious PDF — malware analysis report

Static analysis result for SHA-256 152a33601f064899…

MALICIOUS

PDF

42.3 KB Created: 2020-11-02 21:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0b69fa92ffe8746e40896d6c02daf4d SHA-1: 50f7752cb0ff016b0ffe9a8dde2aa617930d4435 SHA-256: 152a33601f0648996af2cad32f7f340b4d46c6f44058f8cbacd0a70822815c63
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The document body, though heavily obfuscated, contains text related to 'animal jam classic codes' and the malicious URL, suggesting a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ttraff.me/123?keyword=animal+jam+classic+codes+2020+june
    • https://cdn-cms.f-static.net/uploads/4409623/normal_5f9564803b9d3.pdf
    • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/e618fce96498c.pdf
    • https://nifubadipapa.weebly.com/uploads/1/3/4/3/134388301/370fc8d91156174.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/947ea17b-d4e6-44a3-89a1-7c3e669c249e/7528518777.pdf
    • https://cdn.shopify.com/s/files/1/0493/2386/8319/files/absolute_value_equations_and_inequalities_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/divizigo.pdf
    • https://s3.amazonaws.com/donake/40814673856.pdf
    • https://uploads.strikinglycdn.com/files/d08a273e-4460-4f5d-8395-e63280f01156/pokemon_blue_chrome_espaol_descarga.pdf
    • https://cdn.shopify.com/s/files/1/0433/9171/3447/files/pimogigibisenu.pdf
    • https://s3.amazonaws.com/wotodedaruzuk/sufej.pdf
    • https://cdn.shopify.com/s/files/1/0435/8363/5619/files/telegraaf_archief_app_android.pdf
    • https://s3.amazonaws.com/sugaguxagu/sunavibemojojubiwowaxazu.pdf
    • https://s3.amazonaws.com/matogapibelifiv/network_plus_study_guide.pdf
    • https://s3.amazonaws.com/vavale/10287195344.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_off000064c7.bin
67ff4dfda597f59bb18b04f2434d21e36bb0338a8e88e873ef388b8a4aa08d90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64C7 5328 bytes
font_01_sfnt_off000076d6.bin
9f311ee3575ac3959815745c38deba991d1c75466d61ace99fe2dfc837599f29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D6 11100 bytes

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