Malicious PDF — malware analysis report

Static analysis result for SHA-256 14f976343090c3a8…

MALICIOUS

PDF

46.6 KB Created: 2020-08-17 17:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97df1a02754bb5e6125bbc355724d81e SHA-1: 20c2843e657d7fab0f7842c07b806bc90d27fe83 SHA-256: 14f976343090c3a89fd6768d3b3adfbcfd6e32b9658ce5bce931bc461bcd47b0
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL `https://ttraff.cc/pify?keyword=bahubali+movie+hd+1080p+video` is a known malicious redirector, likely leading to further malicious content or malware download.

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.cc/pify?keyword=bahubali+movie+hd+1080p+video
    • http://files.hcsmn.org/uploads/1/3/0/7/130740493/3950003.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0429/9443/4207/files/acetato_de_dexametasona_creme_bula.pdf
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/is_iexplorer_safe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/76140921325.pdf
    • https://cdn.shopify.com/s/files/1/0429/8617/6665/files/kupomizebufozase.pdf
    • https://cdn.shopify.com/s/files/1/0434/5770/8185/files/kuvozalur.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/ssc_cgl_gk_capsule_general_awareness_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/5792/9621/files/28880044654.pdf
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/52009522303.pdf
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/lalutezed.pdf
    • https://cdn.shopify.com/s/files/1/0437/9725/0205/files/40765323443.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/positive_affirmations_for_mental_health.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d40.bin
c278e1fdcec6d0364c99836203f93c004ea16776789f015a336466af46f162d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D40 5560 bytes
font_01_sfnt_off00007009.bin
1f756b46481ac718095810e133e155ec1caf818687d25c20e8b002f727d713c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7009 2116 bytes
font_02_sfnt_off000079b5.bin
969ea283b6c926cb684b6c7f7973b9e6e1f59eab4151ebf08ab4ea4d5c50eee6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79B5 11856 bytes
font_03_sfnt_off0000a104.bin
a98e89e99752f53cf2515ea5b5ee36cec8c5e8dcb136dd91e150264c56952892		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA104 2976 bytes

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