Malicious PDF — malware analysis report

Static analysis result for SHA-256 074a6b0fca64e158…

MALICIOUS

PDF

43.3 KB Created: 2020-09-02 14:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d83c5ed0d9f9e2e2a08e89d75213b888 SHA-1: b63ff5baa71eb2d061c2c90f4d1db0bed54fa428 SHA-256: 074a6b0fca64e158cf57ae8b22fd662fcfb8a65a4ca3084eed422ecb6d9b49d9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a link farm designed to distribute content. One prominent link, 'https://ttraff.link/wix?keyword=asphalt+8+airborne+mod+free', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to drive traffic to malicious infrastructure.

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.link/wix?keyword=asphalt+8+airborne+mod+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/8b49c6_4eb179a8b7cd4ee5931b5cb732605c89.pdf
    • https://static.usrfiles.com/ugd/61f964_8840842ce89c44c6bb4245942fa6589a.pdf
    • https://static.usrfiles.com/ugd/c1de29_b120fadcadd74ab3a30f3ffe955b754d.pdf
    • https://static.usrfiles.com/ugd/92ee2b_a8d73334bcbc4bd8b955cb1af3d74640.pdf
    • https://static.usrfiles.com/ugd/b8c837_255cab9218ea446897b28ca64baf0d1b.pdf
    • https://static.usrfiles.com/ugd/c1c462_925ae2e4d3f247bdb886a9a1c83b135a.pdf
    • https://static.usrfiles.com/ugd/221f3a_20f64c189a9241259554b3b5bccd0a23.pdf
    • https://static.usrfiles.com/ugd/843280_ee7771c4d5d0437a87be806ea4ee3ff6.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/toketuda.pdf
    • https://cdn.shopify.com/s/files/1/0432/2181/1364/files/dasinis.pdf
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/mepavobovudiriteda.pdf
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/lujitelorazoz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8792/1313/files/ccm_certification_made_easy.pdf
    • https://cdn.shopify.com/s/files/1/0443/2130/8828/files/slow_dancing_in_a_burning_room_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/0826/1277/files/raxiso.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/47484570020.pdf
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/sanemedatigunivufajem.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_off00006b29.bin
0c0bcb03149c71b881274633490c8cff642f0dba6752f1e11fb7a21716e3514d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B29 5604 bytes
font_01_sfnt_off00007e04.bin
045103de1eb1a61ec5dde48ab065b860560e5984e44b6a921b296e0d16c94a48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E04 10168 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.