Malicious PDF — malware analysis report

Static analysis result for SHA-256 b09e62a5fbbee99a…

MALICIOUS

PDF

67.4 KB Created: 2020-04-16 20:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8a8d6a2fbd4b4b78234457cb2955766a SHA-1: 36e5ed465904fbe7c8e9c296b439433855fe791e SHA-256: b09e62a5fbbee99a44cadc6fcf97d9dc9a58d63c80de726767d55bc036621ce9
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'mariamarkos.com' being a dominant host. The document body is heavily obfuscated, but the presence of URLs like 'http://yourhealingenergy.com/uploads/1/3/1/3/131383649/131383649.html#abstract+bedsheet+meaning' suggests a lure to external content. 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://yourhealingenergy.com/uploads/1/3/1/3/131383649/131383649.html#abstract+bedsheet+meaning
    • http://mariamarkos.com/uploads/1/3/1/3/131379206/walejagerunabuso.pdf
    • http://emotiondjs.com/uploads/1/3/0/5/130589179/6624464.pdf
    • http://shhmeeze.com/uploads/1/3/0/6/130621373/vavufumut.pdf
    • http://twwotrainningworldwide.com/uploads/1/3/0/4/130435774/4b2861e5.pdf
    • http://commonlawdefender.com/uploads/1/3/1/6/131637035/598f2a18126a0ce.pdf
    • http://royalbluehousing.com/uploads/1/3/1/4/131406507/xosanekugimebu-vuterida-kijotifiwez-jojopif.pdf
    • http://vanderbrooks.com/uploads/1/3/0/5/130543848/lalatosawetotedi.pdf
    • http://viaggiumanizzati.com/uploads/1/3/0/8/130874129/7364676.pdf
    • http://filteredperspective.com/uploads/1/3/0/7/130776407/1800741.pdf
    • http://yourehomenh.net/uploads/1/3/0/6/130621111/muxawuvumufesifow.pdf
    • http://amaiyahelpinghandsfoundation.org/uploads/1/3/0/4/130494801/gojone.pdf
    • http://hello-baby-toys.com/uploads/1/3/0/8/130814643/73a791b.pdf
    • http://thearmpr.com/uploads/1/3/0/5/130589420/991916.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dca.bin
fb8b6994910d9fb838793835c432ecdf3c94bfba4540732d7efa08198239572a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCA 12000 bytes
font_01_sfnt_off00009907.bin
eb5c135cfdd32b66bb4b26ba3942718dbba90ffdfc3fde14c916d33c7f796a14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9907 10872 bytes
font_02_sfnt_off0000bf43.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF43 2600 bytes
font_03_sfnt_off0000c844.bin
aed739abacc3ae8a147d411b5b017aa54225385290f77cce95774007020c0ca8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC844 8088 bytes
font_04_sfnt_off0000e272.bin
c154ed302ee417bf304fcd6f4ac6da6f906e68a2695a4f6a8304a88ae5e557bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE272 18808 bytes

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