Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ddb9f67a65355ca…

MALICIOUS

PDF

42.0 KB Created: 2020-08-26 05:18:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 939b45d3733dbfda1ea123204bbe6095 SHA-1: e5afbf4b981ea88249bdda09e5bbb782e49c3325 SHA-256: 9ddb9f67a65355ca8674174c8e77d9bf158629a1c3a9f44dfd08da3a7c0f98b3
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though partially corrupted, contains the text 'Como validar un rfc de persona moral' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is https://ttraff.cc/pify?keyword=como+validar+un+rfc+de+persona+moral, which likely leads 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=como+validar+un+rfc+de+persona+moral
    • http://files.casciabooks.com/uploads/1/3/2/8/132816066/wuzekewapubamaweb.pdf
    • http://nemibuz.ostendmarineservices.com/uploads/1/3/0/7/130738836/913396.pdf
    • http://bejupe.michaelbrewsterart.com/uploads/1/3/0/8/130813834/d5cebeee4ba.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/49014124903.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/16288176224.pdf
    • https://cdn.shopify.com/s/files/1/0440/9799/4904/files/64500538530.pdf
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/pepavodajakubovegizi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8036/5720/files/dazoguxuxugisifirelebe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9713/7056/files/zazuwogilupo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0133/files/narokat.pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/rivivuzun.pdf
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/championship_manager_2008_pc.pdf
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/realtek_hd_audio_manager_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/87364708974.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/81171269775.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_off000062cd.bin
8386a62ecca4d223caa4cce5e0a51ba13d259d8a5d682ca9999133852d1f3731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62CD 5264 bytes
font_01_sfnt_off000074a2.bin
07996949472b4497a642336e7156c71c9ea359cdd9485af2387838449e11aca4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A2 11332 bytes

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