Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0bf045cdf80e20…

MALICIOUS

PDF

41.2 KB Created: 2020-04-15 17:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 29c838ba407ed75ab5f7a8062b9e5690 SHA-1: 2a80c418204e8ade187029788ce24bd56cfcdd26 SHA-256: fc0bf045cdf80e20239a8a84e0f41fa66cdafe05d7aeb77bdbe454e769e2f5eb
72 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to similarly structured URLs on various domains. This pattern is indicative of a link farm or SEO spam campaign, designed to distribute malicious content or redirect users to phishing sites. The heuristic 'PDF_SEO_LINK_FARM' strongly supports this, identifying a mass of external PDF links. While no scripts were extracted, the presence of numerous unknown URLs suggests a delivery mechanism for further malicious payloads or phishing attempts.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://myknitlife.com/uploads/1/3/1/3/131384600/131384600.html#lined+paper+template+kindergarten+free
    • http://petescottgolfproducts.com/uploads/1/3/0/7/130739773/marutozux.pdf
    • http://shonee.shop/uploads/1/3/0/8/130813084/fukavovedebam_galanetagevina_vefojixoju.pdf
    • http://lpktyreso.se/uploads/1/3/0/6/130640062/4968e.pdf
    • http://fashionplus1.com/uploads/1/3/1/4/131453480/sekizixiwaki.pdf
    • http://befullerthanlife.com/uploads/1/3/0/7/130775346/bd8efb73d4b.pdf
    • http://shiftingloyalties.org/uploads/1/3/0/4/130488331/6564470.pdf
    • http://thetoiletwhisperer.com/uploads/1/3/0/5/130588687/xitijosuf_sojusux_diwenu_fikakojumugap.pdf
    • http://magnoliastravelandtouradventures.com/uploads/1/3/0/2/130270974/2771100.pdf
    • http://magnoliastravelandtouradventures.com/uploads/1/3/0/2/13
    • 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_off0000797c.bin
34ef9bc33863f1eea432b49ca1d7b3c9af86efe51614cb1ac1185e27f336ff6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x797C 8144 bytes

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