Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdbba32fb4517673…

MALICIOUS

PDF

49.3 KB Created: 2020-07-30 18:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 553ac4f0d79e3cd2b46facabfa7bc9b1 SHA-1: 0a188fd0bd14a3c162ddedd2d3934609b068fb69 SHA-256: fdbba32fb451767382de9b9f151d7ffd3184ff9d505c1945dc863146224af6be
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to programming topics, likely to trick users into clicking the malicious link. The primary malicious URL identified is ttraff.com.

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.com/pify?keyword=lenguaje+de+programacion+arduino+uno+pdf
    • http://files.adventuresunplugged.org/uploads/1/3/0/7/130774990/fifamixanojezow.pdf
    • http://files.graceumcwautomaarea.org/uploads/1/3/1/3/131383754/8571657.pdf
    • http://files.powerofplaywilmington.com/uploads/1/3/1/8/131856125/1a4418.pdf
    • http://files.firstxvperformance.com/uploads/1/3/1/0/131070389/2163678.pdf
    • http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/74518302666.pdf
    • https://cdn.shopify.com/s/files/1/0435/6174/6595/files/limufijifipedevoxal.pdf
    • https://cdn.shopify.com/s/files/1/0430/3300/2145/files/29567259861.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/raregabafadobe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0487/0305/files/rosadevuvel.pdf
    • https://cdn.shopify.com/s/files/1/0441/3833/2312/files/54778189224.pdf
    • https://cdn.shopify.com/s/files/1/0432/2584/1819/files/76948398270.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/94732592491.pdf
    • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/tonijudeneburovadefa.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/52919962211.pdf
    • https://cdn.shopify.com/s/files/1/0437/4691/8551/files/16139271001.pdf
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/2563128299.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.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_off00007f2a.bin
daaf42c92770bebf8b8b3df00fedccef981caee3be86d6c67ce58f15c0529ee9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 5084 bytes
font_01_sfnt_off00009066.bin
fa08579a97e10abfdb24e5b845c52a89832adf6d6e48bdc7c5e0c7d552b65a63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9066 11412 bytes

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