Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0db4e1c05594d59…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 09:28:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53bf8dd52c61bfd94b36ffd37de053de SHA-1: 015969ca3072e89d8fe700fc7b637f26dff52f1e SHA-256: f0db4e1c05594d59f74e974497c3e74c48e631d463a3fbef950ab73f2ec1d929
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL that is flagged as malicious. This indicates the primary purpose is to lure the user to a malicious site, likely for phishing or malware distribution.

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.
  • 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.
  • 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=english+in+biological+science+ian+pearson+pdf
    • http://zinura.consultaire.co.za/uploads/1/3/0/8/130814921/xilij_nuwobosi_luferewule_motefedisilevi.pdf
    • http://files.softandsound.org/uploads/1/3/0/8/130873902/93623c0a3919.pdf
    • http://fiwobolav.barryshlachter.net/uploads/1/3/2/3/132302978/botixal.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/36706504521.pdf
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/zesuwanukakinaxiw.pdf
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/bushcraft_attitude_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/bsc_courses_list.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/hedonism_in_a_sentence.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/93955963272.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/jodademux.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/62732074213.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/tony_stark_mansion.pdf
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/71418521454.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/42132015011.pdf
    • https://cdn.shopify.com/s/files/1/0429/5376/9123/files/vetifojakapokuluxonebo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3766/2103/files/l_argumentation_en_francais.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006121.bin
89ab8e28fc0bb765e21a50da0bfb4a53914f296ec66183d7a53fbb54357a8605		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6121 5512 bytes
font_01_sfnt_off000073d9.bin
6256183833c5c0507eb35f132f903992356a494485863f5f11e5df21bdcb6b24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D9 9692 bytes

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