Malicious PDF — malware analysis report

Static analysis result for SHA-256 d43b60ee2c230e83…

MALICIOUS

PDF

51.1 KB Created: 2020-04-18 07:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 69e53b9a59844b4e48250e2193d6f7ba SHA-1: aab65f5f023debdbeaeec9063c4772582662259f SHA-256: d43b60ee2c230e83b70f12416493d6186d39b7b8f2d32b5a4cd009ede5d3875c
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or SEO spam campaign, designed to drive traffic to these external resources. The document body contains garbled text and a single URL that is also part of this link farm.

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://growmygardens.com/uploads/1/3/1/3/131398053/131398053.html#cartography+form+a+sentence
    • http://annalisaunkuri.com/uploads/1/3/0/6/130621141/8976959.pdf
    • http://engleins.com/uploads/1/3/1/3/131383424/bosopaki-fiwuwekuzeba-sedekexene.pdf
    • http://magdogusa.com/uploads/1/3/0/5/130588559/nijitomaruf-xazuxosatimul.pdf
    • http://mallardip.com/uploads/1/3/0/2/130288926/manusubozufago.pdf
    • http://gravidadepqd.com/uploads/1/3/0/6/130621031/9163750.pdf
    • http://oreillyfinearts.com/uploads/1/3/0/4/130483773/ruwomoraselumu.pdf
    • http://mcnallyspinalcare.com/uploads/1/3/1/4/131452929/6a4ab5.pdf
    • http://hurstdesign.net/uploads/1/3/0/7/130776743/fbb94007fdb579.pdf
    • http://truenorthlegal.com/uploads/1/3/0/6/130603696/1792f5.pdf
    • http://mylureclaim.com/uploads/1/3/0/7/130740462/vemefelajejojutowo.pdf
    • http://iecsae.com/uploads/1/3/0/2/130288854/likepamabiwa.pdf
    • http://coastline-electric-co.com/uploads/1/3/0/6/130620506/kamarakasedal-ludinewaxowan.pdf
    • http://music-bears.com/uploads/1/3/0/5/130539599/nemitew_fegorefumuv_zokosuz.pdf
    • http://tailgatetoday.com/uploads/1/3/1/0/131070073/mafuj-lujosiga-sibikadimam.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000757d.bin
c454184239fca904bcf0261ba9115080d4a660fd582ade4026e16c42a6a1db11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x757D 9356 bytes
font_01_sfnt_off00009755.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9755 2600 bytes
font_02_sfnt_off0000a07c.bin
2ae052e88f0e58ab34269aa6881c08ba2babd784e936cc589dc6b1be5edc5bd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA07C 1620 bytes
font_03_sfnt_off0000a8ce.bin
724b1404d54195b93f56a9076134dc853e6601a587057c471f4a557359d0af4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CE 16336 bytes

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