Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6db8e26d6158644…

MALICIOUS

PDF

135.4 KB Created: 2020-04-08 21:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c29d2ea3649db2abbb7d7b94e02bf4b7 SHA-1: e9a68ae3f29315b702a3be8d929213915e9bf446 SHA-256: e6db8e26d6158644db29469e846c6a78c8c05d5653e0802e1a2a56ec1e4e04d4
122 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document explicitly requests recovery secrets, private keys, or backup codes. This suggests a phishing or social engineering attack aimed at harvesting credentials. No scripts were extracted from this sample.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://aarongrodzinsky.com/uploads/1/3/0/5/130590043/130590043.html#comptia+security++get+certified+get+ahead%3A+sy0-501+pdf
    • http://4thusinfantry.org/uploads/1/3/0/5/130540874/7758235.pdf
    • http://kaylanicolebeauty.com/uploads/1/3/0/2/130289702/dujibebaw.pdf
    • http://motassist.com/uploads/1/3/0/6/130621483/19ea8b52c2ec9f.pdf
    • http://innerconnectionspdx.com/uploads/1/3/1/3/131384121/10493bd96a4ce.pdf
    • http://awolimited.com/uploads/1/3/0/3/130379285/velufaxukexagipo.pdf
    • http://leepehgee.com/uploads/1/3/0/3/130379581/wajajomubatuzopid.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_off0001d6ec.bin
69c4241e327e7c2ccb2e39a49cda9b76e83d466ffc787dc6d66ce61fb9597ec3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D6EC 9612 bytes
font_01_sfnt_off0001fad8.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1FAD8 16036 bytes

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