Malicious PDF — malware analysis report

Static analysis result for SHA-256 851a882df1396236…

MALICIOUS

PDF

157.2 KB Created: 2020-08-08 21:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c9a5358858ab1c77e9894c50bb833c6 SHA-1: ef07cd6d4dca1027f9df6573dc3e776247474976 SHA-256: 851a882df1396236fcc91ec5fd0dc12ca191ac6f46686f900a2e1d31f2a26239
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL `https://ttraff.cc/pify?keyword=begrijpend+lezen+groep+4+werkbladen+pdf` is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains this URL, reinforcing the redirection attempt. No scripts were extracted, and the file type is PDF, suggesting a social engineering lure to trick users into visiting the malicious link.

Heuristics 2

  • 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.
  • 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=begrijpend+lezen+groep+4+werkbladen+pdf
    • http://files.lovelearnshare.com/uploads/1/3/0/9/130969194/4847805.pdf
    • http://lotozani.sjcustompaint.com/uploads/1/3/1/6/131637136/kitekevarupef.pdf
    • http://files.toejar.com/uploads/1/3/1/4/131410007/wufifesun_butagobo_jaduz.pdf
    • http://files.amypurcellart.net/uploads/1/3/1/8/131856602/pulekanuxaxosiw.pdf
    • http://files.mosaicartsfestival.com/uploads/1/3/2/6/132683080/dunitotabepaxu-kaguxibidu-lapusexavemu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/91436341045.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/46049890673.pdf
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/lolesafilis.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/taratunujasibisexumavuro.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/iframe_for.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1858/files/jenga_drinking_game_diy.pdf
    • https://cdn.shopify.com/s/files/1/0431/7157/8024/files/14714010712.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/51532770374.pdf
    • https://cdn.shopify.com/s/files/1/0439/6669/3534/files/administracion_de_recursos_humanos_idalberto_chiavenato_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0432/0319/9136/files/30967489802.pdf
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/9066849563.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_off000221ce.bin
6487e930ac294f94d420bc42081130d471dc3059206ca93aab1e4134118af75d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x221CE 5588 bytes
font_01_sfnt_off00023502.bin
99e307d42e225766020795cb514b3f920e23e09547ff86adf530f93e1fa3d813		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23502 16148 bytes

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