Malicious PDF — malware analysis report

Static analysis result for SHA-256 93581d1fa49dee8f…

MALICIOUS

PDF

35.5 KB Created: 2020-03-20 12:12:36 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3ee63a0feaac7bce9cc649539049b77a SHA-1: 2c06734cff1a9cf4a61d1b5d617647cf9f24b561 SHA-256: 93581d1fa49dee8f348a6e761c5d14288c07554e97c70a73278fefdbe2484771
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to similarly structured URLs on different domains. This suggests a link farm or SEO poisoning tactic designed to drive traffic to potentially malicious sites. The document body, though partially corrupted, contains text related to 'Tipos de control de acceso fisico' and mentions 'wkhtmltopdf', indicating it was likely generated programmatically to appear as a legitimate document while hosting numerous outbound links.

Heuristics 3

  • 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.
  • 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://agostomiglia.com/uploads/1/3/0/9/130969847/130969847.html#tipos+de+control+de+acceso+fisico
    • http://rob-harrisblog.com/uploads/1/3/0/3/130313702/944d8878272cf76.pdf
    • http://www.vixenacademyofhouston.shop/uploads/1/3/0/7/130739616/pikajufojinodir.pdf
    • http://trafficlynx.com/uploads/1/3/0/5/130588960/c9da828ff.pdf
    • http://brookingcaldwellgatewood.com/uploads/1/3/0/7/130776850/6ee4d038f553.pdf
    • http://bythebaybm.com/uploads/1/3/0/5/130550868/5800906.pdf
    • http://trenam.net/uploads/1/3/0/6/130620274/zijusar-jozag.pdf
    • http://mimundo.pl/uploads/1/3/0/4/130475918/xekopukezato.pdf
    • http://specialtygifts2go.com/uploads/1/3/0/5/130588540/248312facea0.pdf
    • http://maisonbouche.net/uploads/1/3/0/4/130476066/526428.pdf
    • http://girlfriendsfitnessparsons.com/uploads/1/3/0/7/130739037/xiril.pdf
    • http://forzagarage.net/uploads/1/3/0/6/130621444/larajozoxe.pdf
    • http://2brosahose.com/uploads/1/3/0/2/130270912/jamevede.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_off00006436.bin
110fb2dd214a3e8c059195384b314039568f037c7dadc90efee6919123e115b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6436 7828 bytes

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