Malicious PDF — malware analysis report

Static analysis result for SHA-256 b16aef49cb6ce36b…

MALICIOUS

PDF

40.8 KB Created: 2020-03-29 14:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 459d07ff184d6439da1fbf8f59ee1df0 SHA-1: 853807faef8ebc08402fa0fa8269cafcba1f2e84 SHA-256: b16aef49cb6ce36bec9fa04489b34e95ddc19fe03b00c9e3a663762bdac46c67
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, identified by the PDF_SEO_LINK_FARM heuristic. One of these links, http://74-123-77-222.mgwnet.com/uploads/1/3/0/8/130873708/130873708.html#sos+in+morse+code+audio, is directly embedded in the document body. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through numerous seemingly unrelated domains. No scripts were extracted from this sample.

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://74-123-77-222.mgwnet.com/uploads/1/3/0/8/130873708/130873708.html#sos+in+morse+code+audio
    • http://ted-winslow.com/uploads/1/3/1/4/131406288/bugeribukem-fezidat.pdf
    • http://littlejohn-it.com/uploads/1/3/0/5/130539091/6576555.pdf
    • http://globalkeytrade.com/uploads/1/3/0/6/130620624/4ee3f5c1db6f.pdf
    • http://surftheweb.org/uploads/1/3/0/8/130874554/264447e89e9.pdf
    • http://americanpc.biz/uploads/1/3/0/4/130488759/6570785.pdf
    • http://mrsrosatosclass.com/uploads/1/3/0/4/130483957/fesada_zufobofere.pdf
    • http://www.haulawayremovals.com/uploads/1/3/0/3/130313150/5551933.pdf
    • http://beachhoneymoonsanddestinationweddings.com/uploads/1/3/0/6/130620729/webigosovozadef.pdf
    • http://domernation.com/uploads/1/3/0/7/130738939/9130466.pdf
    • http://banzaiwraps.com/uploads/1/3/1/0/131070226/sorukalapejulux-rejegatuxoru-fisuko.pdf
    • http://forttchitogama.com/uploads/1/3/0/7/130776509/6710057.pdf
    • http://adornmentnaturaletobago.com/uploads/1/3/0/6/130621019/6581050.pdf
    • http://blog-famous.me/uploads/1/3/0/7/130740262/b37a72.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_off00007667.bin
9536159cbd706c3747216ff3e702e48de0a0f3ca5dcda1b192d0c81129b3db21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7667 8368 bytes

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