Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3ce01926df929d…

MALICIOUS

PDF

49.7 KB Created: 2020-07-07 11:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dde40f4aa1f57858607fa9ef224c3b9 SHA-1: e6bec68f2c6a999112c6ad751fc3a7e580ba9913 SHA-256: ea3ce01926df929d50c82ed56685dfdfda2282e928fe051e85d5de9081b44f38
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, including one to a known malicious redirector at 'ttraff.cc'. The document body also contains a visual download button lure, suggesting a phishing or scam attempt. The primary attack pattern involves redirecting the user to malicious infrastructure via embedded links.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=exercices%20sur%20les%20familles%20de%20mots%20cm2%20pdf#exercices+sur+les+familles+de+mots+cm2+pdf
    • http://files.hornsbyptsa.org/uploads/1/3/1/3/131379434/bomujakurufilo.pdf
    • http://files.scharencycles.com/uploads/1/3/0/7/130776118/ginukaxezunat.pdf
    • http://files.centrocha.org/uploads/1/3/0/8/130873870/7918256.pdf
    • http://files.nducuwangugi.com/uploads/1/3/0/9/130969555/gimuviri-megatanizus-selusifo.pdf
    • http://files.bensawyermusic.co.uk/uploads/1/3/2/7/132740218/kelupotamevivok.pdf
    • http://files.haralsoncountyhistory.com/uploads/1/3/2/3/132302913/4438840.pdf
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdf
    • http://files.striba.net/uploads/1/3/1/3/131380413/9297027.pdf
    • https://sivobir.files.wordpress.com/2020/07/lalaxusatevupejupemoj.pdf
    • https://murafedine.files.wordpress.com/2020/06/sodelono.pdf
    • https://tufezub.files.wordpress.com/2020/06/pobezuboxiziwomufo.pdf
    • https://sakadukil.files.wordpress.com/2020/06/13104623946.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069c2.bin
e6cfe48852d39f006791e27209923a6e0934e6ed695235f0be71121a690ed27e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C2 5232 bytes
font_01_sfnt_off00007b9d.bin
f1a8b4665ec431405792c7975cd64155af8b2117ca946cb7aa8e51a448bbaec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9D 12300 bytes
font_02_sfnt_off0000a2b7.bin
09b6aeec409553c79ef4dc896bf37c5b640861437b0839ada6985bb8edb16253		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B7 16144 bytes

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