Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0990022f92d46f6…

MALICIOUS

PDF

46.8 KB Created: 2020-08-13 12:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5d71375c5a47b3e8a5398c65ffb0df5 SHA-1: 7afe71ce851e957bf73727f22b2c71a004d937a9 SHA-256: e0990022f92d46f6550677a1bd6cf5064e05d75866a61de22ffb58c13b20bb08
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary link pointing to a known malicious redirector. The document body, though partially obfuscated, contains text related to PDF rotation and includes the malicious URL. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a social engineering attempt to drive traffic to harmful sites.

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/wb?keyword=cara%20memutar%20rotasi%20file%20pdf
    • http://ganote.ckumaresan.com/uploads/1/3/0/7/130775692/donag_jewasi.pdf
    • http://files.wychocki.com/uploads/1/3/1/4/131407974/14f7fad00.pdf
    • http://files.landscapegardenerscamberley.co.uk/uploads/1/3/1/4/131453028/vezelexel-wovisuj-filavidowadonu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8234/1781/files/49539264585.pdf
    • https://cdn.shopify.com/s/files/1/0431/8196/5461/files/gupekibegij.pdf
    • https://cdn.shopify.com/s/files/1/0429/6844/9180/files/nirekanuvuvakoru.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/wavobebodixidalexome.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/install_git_mac_os.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/adobe_pro_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/3744/7576/files/vmware_free_version.pdf
    • https://cdn.shopify.com/s/files/1/0433/4102/1349/files/lutikazuwa.pdf
    • https://cdn.shopify.com/s/files/1/0427/7790/3263/files/bulog.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/roxanugesuzilun.pdf
    • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/30768566268.pdf
    • https://cdn.shopify.com/s/files/1/0430/9663/7597/files/vazegej.pdf
    • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/long_multiplication_worksheets_ks2.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006561.bin
b188f2175bab8e22e448d1a7a355b5e8a4c10f982f18a3fe5e2b2869b6aa23e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6561 5092 bytes
font_01_sfnt_off0000769b.bin
01fbd42d677fc71c39f5d654bc13c88deea1125b01828b61eb0f8fbefb4a425f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x769B 10164 bytes
font_02_sfnt_off0000999d.bin
d2703eec0843ee934b0a8bba7850da2550094fb4af61d17619ccbf35009047d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x999D 16104 bytes

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