Malicious PDF — malware analysis report

Static analysis result for SHA-256 2464237ac24648f7…

MALICIOUS

PDF

50.2 KB Created: 2020-08-02 06:06:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e9a6a85410d06bea6f194b9268176c5 SHA-1: 666bf27c94ecf43bf7d14433ff9378a42f0a4e6b SHA-256: 2464237ac24648f7bbf800127ebb5a0692794b8064f1c2797d32b001aeb91544
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with one pointing to a known malicious redirector. The document body itself is heavily obfuscated but contains the same malicious URL. This suggests the primary purpose is to redirect users to malicious content, likely for SEO manipulation or to host further stages of an attack.

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=javelin+range+5e
    • http://files.vidatacos.com/uploads/1/3/0/8/130873941/3162880.pdf
    • http://files.stonegatefl.com/uploads/1/3/2/6/132681501/gelaf_rewami_mibadopopolodap.pdf
    • http://files.balancemassagebyann.com/uploads/1/3/0/7/130776594/fivofowanuxafiz_tegitexanonudi.pdf
    • http://files.livinggodsmission.com/uploads/1/3/0/8/130874413/femobupowufebekoluta.pdf
    • https://cdn.shopify.com/s/files/1/0433/9954/4984/files/bajitakiwulorejulizipib.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/pekosot.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9217/files/99685623606.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/josixiviri.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/notasanugimelilivugef.pdf
    • https://cdn.shopify.com/s/files/1/0435/4483/8303/files/dexabuguxavojexusevezipif.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/77198602285.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/libagog.pdf
    • https://cdn.shopify.com/s/files/1/0428/9223/0823/files/32391035962.pdf
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/niripisudavuvajoxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/tojawozo.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_off0000891e.bin
06edcd47d275ba2816e5739ffb0c69465567bcb8920873ac47eb7397b84dcf4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x891E 4848 bytes
font_01_sfnt_off000099b8.bin
a5081a158e24d3af1e2246f7cc9eef674136d952650a177a003712513615c633		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99B8 10184 bytes

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