Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcfa7d3c260141e5…

MALICIOUS

PDF

39.5 KB Created: 2020-08-16 19:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c9685f67d3204b93a227c79d9bb1ecb SHA-1: a277a3221a93d981610a8fea40393f3bd6b915f0 SHA-256: fcfa7d3c260141e5e9f7792db840377c3b3f8071c78eb2986ebb24455e272b5a
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector link, indicating a phishing or social engineering attempt. The document body, though heavily obfuscated, contains text related to a 'Dell u2412m user guide' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is ttraff.cc, which is known to redirect to further malicious content.

Heuristics 3

  • 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.
  • 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=dell+u2412m+user+guide
    • http://files.mollybooth.com/uploads/1/3/1/6/131637014/dexixevepavavojeg.pdf
    • http://kakob.polygonall.com/uploads/1/3/1/4/131438137/wijebadus.pdf
    • http://kokod.paleoplaycanmore.com/uploads/1/3/2/6/132683130/6409855.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipipopiluniwewikojidil.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/tajugozojoxipon.pdf
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/zoverunipivumadomonix.pdf
    • https://cdn.shopify.com/s/files/1/0437/3066/5637/files/duxorer.pdf
    • https://cdn.shopify.com/s/files/1/0434/0704/8860/files/48736412941.pdf
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/90971443059.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2852/files/valusarebuzufebava.pdf
    • https://cdn.shopify.com/s/files/1/0434/3729/3724/files/buzulemodegamajamiperufo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/dujilipu.pdf
    • https://cdn.shopify.com/s/files/1/0438/3598/1974/files/5th_wave_full_book.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_off0000507c.bin
e3bae0d03c04478cf9c0ed0bf3a4112a516eb8c167dc44834afcdb0ba5825e34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x507C 5204 bytes
font_01_sfnt_off0000622d.bin
8fa4eaaf4c7abd479cf4be67d5dace364848a6fe3d6567828c5b469b9ed2df53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x622D 14424 bytes

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