Malicious PDF — malware analysis report

Static analysis result for SHA-256 64dd767ad1898522…

MALICIOUS

PDF

50.4 KB Created: 2020-08-21 17:01:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e15d9d2589ebb15b588fcfa4a554d07 SHA-1: 9ef649dccc7e72277b8d342009afd890a586353f SHA-256: 64dd767ad1898522f9aa2fe4e16daa9e5f3229d6a6082046a8dd26ec4cbd85cc
154 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=boboiboy+galactic+heroes++apk'. The document body also contains this URL and other links, suggesting an attempt to lure users to malicious content. The presence of a high ML score and the redirector link strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.
  • 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.com/pify?keyword=boboiboy+galactic+heroes++apk
    • http://files.millantiques.com/uploads/1/3/2/7/132740185/sewawalufuxavegetob.pdf
    • http://files.powerlandrealty.com/uploads/1/3/1/8/131856191/41f090428da286.pdf
    • http://files.fakeshemp.net/uploads/1/3/1/1/131163986/gikaritudabopimeg.pdf
    • http://files.gwengunterart.com/uploads/1/3/0/8/130814926/remodanogile-gexomenevi-jadavatoruvumi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0436/6876/6873/files/4932992579.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0181/files/oral_route_of_drug_administration.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/6465322881.pdf
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/osu_whitecat_skin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/bluetooth_mic_application_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/8987/7408/files/32491202916.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2191/files/911_carrera_performance.pdf
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/asrock_g41m_vs3_r2._0_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/4867652643.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b1a.bin
84576b28a4a143d9d4219c1db49a849971343fd3bcf4ed218520f7e87b0e170d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1A 5232 bytes
font_01_sfnt_off00006cfb.bin
6124d0970480235674235ac6cd13d183ad6a7fc6c0a872d1387b7025c12a3041		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFB 14280 bytes
font_02_sfnt_off00009994.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9994 16092 bytes
font_03_sfnt_off0000ae5b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE5B 4324 bytes

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