Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7bbcae78824c2f…

MALICIOUS

PDF

40.4 KB Created: 2020-06-21 23:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d95d7fa4cdb745bba2178bffb8a22ad5 SHA-1: f75c3ba0d183158bbf47d2f6e4330dc33ed47d6d SHA-256: 2e7bbcae78824c2fefba908b4a047da4b4b86960ab498f806485a71276543f7a
102 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a heuristic firing for a 'Password-protected archive handoff' lure. The document body explicitly mentions taking password protection off PDFs and includes a link to a related HTML page, suggesting a social engineering tactic to trick users into downloading further content. The presence of a PDF link farm further indicates a malicious intent to distribute potentially harmful files.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://cometothewellcoaching.com/uploads/1/3/0/5/130588459/130588459.html#take+password+protection+off+pdf
    • http://rsdn1.smiles-intl.com/uploads/1/3/1/3/131381762/watamofusujag-kezezexobak.pdf
    • http://truesinhomecreations.com/uploads/1/3/0/4/130483498/305949.pdf
    • http://mail.shakespeareinthecannery.com/uploads/1/3/1/0/131070116/7868194.pdf
    • http://thevibrationwithin.com/uploads/1/3/0/6/130604312/tugiwadepewova.pdf
    • http://hesperidesblog.com/uploads/1/3/0/5/130589386/4007392.pdf
    • http://thevitalinitiative.org/uploads/1/3/0/5/130540240/kodopobudidi_bosiko_gakekefiv_doxasemubag.pdf
    • http://armdancermedicalcenter.com/uploads/1/3/2/7/132710736/lujufilifemavap.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_off000060da.bin
0048127e3dcf4dfb5afcd3e4c8c7376dcb0d77c0b1a287e5aa8d9be3b48acad6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60DA 5008 bytes
font_01_sfnt_off00007205.bin
828f1b222e8c0939b3a043c04e4f7bdae6016046b4ce8663fb72ea0ade8fe504		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7205 10344 bytes

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