Malicious PDF — malware analysis report

Static analysis result for SHA-256 db1c75fd9080dce3…

MALICIOUS

PDF

52.6 KB Created: 2020-08-18 20:33:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40b99b90cb5c7a04cb63df0d9e860e02 SHA-1: e1c721020db0017447595e87e256bba93c1abb9a SHA-256: db1c75fd9080dce379b31d8a4e94327d70c5883992d0f87eefdd80c533bba851
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=shola+aur+shabnam+movie++3gp'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify-hosted PDFs, including 'https://cdn.shopify.com/s/files/1/0428/2312/3100/files/nexeporikewe.pdf'. The document body, though heavily obfuscated, also contains these URLs, suggesting a lure for movie downloads that leads to a chain of redirects and potentially malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=shola+aur+shabnam+movie++3gp
    • http://ganig.monarchdebate.com/uploads/1/3/0/9/130969204/27df976fa.pdf
    • http://files.hillcrestbaptistchurch.info/uploads/1/3/0/8/130874422/8770376.pdf
    • http://korufip.granbsh.com/uploads/1/3/1/1/131164250/8310b4117c.pdf
    • http://kunab.mcleanwomansclub.org/uploads/1/3/2/7/132741024/likunowasovetimaju.pdf
    • http://files.midnightsjourney.org/uploads/1/3/1/3/131384555/gagutekejawim-vunuwilerise-vateginijam.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/nexeporikewe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/zero_article_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0437/5589/6990/files/free_card_games_online_no_required.pdf
    • https://cdn.shopify.com/s/files/1/0437/3174/6967/files/de_broglie_wavelength_problems.pdf
    • https://cdn.shopify.com/s/files/1/0430/3673/7699/files/automobile_body_parts.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/nuzuziriwagejom.pdf
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/thematic_apperception_test_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/8865/7051/files/gujuxukinewelosat.pdf
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/84735229732.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/nufikagobuwuvisegarofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/zafowuxenegejoxasir.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/5000/files/gefegugalekug.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006987.bin
eed52bc1c7eaf14a58fdf943081080abfa1fb5e3cb83b550c7a84210551df52c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6987 5700 bytes
font_01_sfnt_off00007cbb.bin
753b93f076598e3d80f52c5399e2e626f8fd7ddc885ed7c50ab616aefc1017cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBB 11000 bytes
font_02_sfnt_off0000a25c.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA25C 16164 bytes
font_03_sfnt_off0000b7af.bin
12d18cff26cddad454d10912b5e47ab6062ede8a54e2f6774ffe144ad47aa3fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7AF 3396 bytes

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