Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fe4f6bf34ed11d4…

MALICIOUS

PDF

31.1 KB Created: 2020-03-29 06:24:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7dda874bb1c74b963417ef1bb0148190 SHA-1: ff4824e5160a70cf0a1aa7f3f1d03390c9ea4849 SHA-256: 3fe4f6bf34ed11d432861d50a5c39fc48bc95117f606bda0d93b5ef23a6efef0
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, contains text related to 'Intermatic timer instructions', likely a lure to encourage clicks on the embedded URLs. The primary heuristic identified a link farm strategy, indicating the PDF's purpose is to drive traffic to a network of potentially malicious sites.

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://afaparents.org/uploads/1/3/0/5/130588164/130588164.html#intermatic+timer+instructions+tn111
    • http://theplansihave.com/uploads/1/3/0/6/130603976/rowulorasat.pdf
    • http://sys-service.it/uploads/1/3/0/6/130639954/23eaf5d8d.pdf
    • http://boldercredit.com/uploads/1/3/0/6/130621997/e6f6b5c.pdf
    • http://smtp.carmichaelnl.com/uploads/1/3/0/2/130271132/ceb85fd999b6371.pdf
    • http://iexpresslogistics.com/uploads/1/3/0/7/130740011/vivif.pdf
    • http://mollyvstreiff.com/uploads/1/3/0/5/130542852/2779536.pdf
    • http://technobubble.app/uploads/1/3/0/6/130604892/9137562.pdf
    • http://evancusato.com/uploads/1/3/0/5/130588845/a3c957c433.pdf
    • http://wimberlesque.com/uploads/1/3/0/9/130969647/9443812.pdf
    • http://uglyhousesforcash.com/uploads/1/3/0/4/130435715/kovodorikufaxu_kepatibusedu_lamajelefot_wobid.pdf
    • http://plmwichita.com/uploads/1/3/0/6/130639021/wojibol_joluz_fodafugiri.pdf
    • http://mpm-consult.com/uploads/1/3/0/6/130639028/270cfb1.pdf
    • http://www.a3sgestion.ch/uploads/1/3/0/7/130739474/wuzixe.pdf
    • http://mta-sts.mx.cyclonecanvas.com/uploads/1/3/0/6/130604098/7794bfc5731c83b.pdf
    • http://gerberconsultancy.com/uploads/1/3/0/4/130436139/jiloj.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_off000052e7.bin
c1924f7165ec55b8f9409706620fe5172352dc5508cc5cd24d9b9a829fb27325		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52E7 7240 bytes

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