Malicious PDF — malware analysis report

Static analysis result for SHA-256 093e8f241731bc00…

MALICIOUS

PDF

51.5 KB Created: 2020-08-31 13:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a84b8b56511c70832820f9e460bca07c SHA-1: 45441846d48cf71d8e35d6585e19ac800c6e2573 SHA-256: 093e8f241731bc00bd987e18e7dd259a2e7cc7d89530d52ea4efd7e361f26dfb
154 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL that is flagged as malicious, suggesting a phishing or malware distribution attempt. The document body and embedded links indicate a lure related to 'flight radar 24' to entice clicks. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to redirect users to a malicious site or download further payloads.

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/wix?keyword=flight+radar+24+t%25C3%25BCrk%25C3%25A7e+full+apk
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/7820/6111/files/21744371026.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/2904411820.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6258/files/2855267096.pdf
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/telit.pdf
    • https://cdn.shopify.com/s/files/1/0440/7482/7941/files/89924171430.pdf
    • https://static.usrfiles.com/ugd/b8c837_b7ca450560b54881aa546c7506a69fa7.pdf
    • https://static.usrfiles.com/ugd/3fc21f_4b699c355a0b49cdbf906aa9b2df942f.pdf
    • https://static.usrfiles.com/ugd/ee9d3f_368b06d940954f8099999c122528968f.pdf
    • https://static.usrfiles.com/ugd/93c935_3528db94b4f04804884d2aa3f6ac55ce.pdf
    • https://static.usrfiles.com/ugd/c162b3_1ff1a53977714ee8b01db0b33e4e9f39.pdf
    • https://static.usrfiles.com/ugd/735189_bb6d8d733e7448d7997f6b03eaeb9faf.pdf
    • https://static.usrfiles.com/ugd/b8c837_06c94ce8b47e43228f51319a208a66f1.pdf
    • https://static.usrfiles.com/ugd/405339_7c2def5bf49b4069861744c88e848f3e.pdf
    • https://static.usrfiles.com/ugd/4c76bf_a197bd49edcd4d14839695e0d9bb80f9.pdf
    • https://static.usrfiles.com/ugd/1ee69b_370c3e7d91a24155a9876a9f1c6ab0d0.pdf
    • https://static.usrfiles.com/ugd/12f4eb_6b6b329c355e4025b6d332c20d245124.pdf
    • https://static.usrfiles.com/ugd/2074c9_4bec2920ee3f453f928a3462225b9679.pdf
    • https://static.usrfiles.com/ugd/99965f_f5e19d1aeae24d458359150aee98ec22.pdf
    • https://static.usrfiles.com/ugd/b8c837_63771b827d8c4670907d1fb76394d790.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_off000064f7.bin
69742d3ff6c61dd01a637f8a2570e8e993d3ddf85addf36291cb7c315052da13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F7 5664 bytes
font_01_sfnt_off00007814.bin
15bfc82587f0f4f1b342e4189d33951f25276c122016ba9465afd2d62c1cbbba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7814 2288 bytes
font_02_sfnt_off00008254.bin
93a1e7347b620d8debb9961e91b0ae8711b8de2a723113a6bbb7d64d18162b08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8254 11756 bytes
font_03_sfnt_off0000a89a.bin
a6aff6a43d3cce4813d40d03e08483c84c65b4cc4faa8b4587d3e6d21e8e8151		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA89A 16184 bytes

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