Malicious PDF — malware analysis report

Static analysis result for SHA-256 f74667b1ef3d6adf…

MALICIOUS

PDF

43.3 KB Created: 2020-04-16 15:27:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 389a17005d3263566dd9bd2565c1c46b SHA-1: 4beffafca4863698180d6c1be143863c906805ec SHA-256: f74667b1ef3d6adfc75dccca0c3659085db15d742a31011fe0ed8402c82b7edf
82 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are numerically and semantically similar, suggesting a link farm for SEO manipulation or phishing. The document body also contains a callback phishing lure, instructing the user to contact a number in a billing or refund context. No scripts were extracted from this sample, but the presence of numerous unknown-reputation URLs and the callback lure strongly indicate a malicious intent to deceive the user.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://rockandrowel.com/uploads/1/3/0/2/130287313/130287313.html#admission+form+sainik+school+ghorakhal+nainital
    • http://marqueemainstage.org/uploads/1/3/1/3/131384468/5899585.pdf
    • http://adairwatkins.com/uploads/1/3/1/4/131455883/gobugovagu.pdf
    • http://composer4media.com/uploads/1/3/1/3/131379699/2586715.pdf
    • http://babybuddies.us/uploads/1/3/0/5/130539553/muxajegupuriwix_wudonezutupefo_davewaxorato_buwenowinitom.pdf
    • http://taylororchards.net/uploads/1/3/1/4/131437044/nanadazoxov_pibaguwukugeg.pdf
    • http://lakeworthwaterkeeper.org/uploads/1/3/0/7/130739419/7348356.pdf
    • http://goldenblissbrand.com/uploads/1/3/0/8/130874493/tivuzozusegemifi.pdf
    • http://slement.fr/uploads/1/3/0/5/130588977/bbf64.pdf
    • http://huntermackenzie.com/uploads/1/3/0/2/130270898/vizitefijemit_rotigiteg_mukozoradepo_tamolamitapu.pdf
    • http://philsmithconsulting.com/uploads/1/3/1/3/131381706/torupo-tufakora-sekaropit-wowotolun.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008047.bin
309cfc8e0205a7d58403231f90e16bc532746ce5796f9870695b4a3cdbef383a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8047 8584 bytes

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