Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a11f6599ad8c5c…

MALICIOUS

PDF

34.6 KB Created: 2020-04-11 09:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8f71c2776113de321af0cc59a09b16b0 SHA-1: b80563a7171e9e9a933f667de847d7b2c11988a5 SHA-256: 32a11f6599ad8c5cc0032dff2a6bf78049a404176c41b024abd135dc2a00c2cf
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous external links, many of which point to domains that appear to be part of a link farm. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains instructions for executing Windows scripting tools, suggesting an attempt to download and execute further payloads. The embedded URL 'http://74-123-72-35.mgwnet.com/uploads/1/3/0/6/130603724/130603724.html#fullmetal+alchemist+manga' is likely part of a phishing or scam campaign.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://74-123-72-35.mgwnet.com/uploads/1/3/0/6/130603724/130603724.html#fullmetal+alchemist+manga
    • http://cmdenterprise.com/uploads/1/3/0/5/130588395/1519569.pdf
    • http://brianrohm.com/uploads/1/3/0/8/130813781/3471079.pdf
    • http://psychoannielyze.com/uploads/1/3/0/5/130588540/nonubufesinu.pdf
    • http://plowandstarsthanksgiving.com/uploads/1/3/0/8/130874015/e7b767d99da2.pdf
    • http://familygrowthcenter.com/uploads/1/3/0/6/130604638/8d6f0154bd84.pdf
    • http://elizabethquigg.com/uploads/1/3/1/3/131398069/4f822.pdf
    • http://rudywalkerofficial.com/uploads/1/3/1/4/131437670/dunoxuwulo.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_off000060ec.bin
d2c42105f41ef0456366fe0c61dfe11e24fcdba16b5367cbf478b8e641ce65b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60EC 7708 bytes

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