Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd61c579b7eb4d14…

MALICIOUS

PDF

55.4 KB Created: 2020-03-27 04:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b0f12cafe9d88fac4e620d6376f91f3a SHA-1: ebec6e88b64601dbca23ce9fec8c18a262c5d4b7 SHA-256: bd61c579b7eb4d140e60de40213621bace28c6c6736598e631e8f8806dac0514
92 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 manipulation or to redirect users to malicious content. The document body mentions 'Wisconsin second chance lottery', suggesting a lure to entice clicks. The ML classifier strongly indicates maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://highclassandaffordable.com/uploads/1/3/0/6/130604548/130604548.html#wisconsin+second+chance+lottery
    • http://stlukeseucharist.org/uploads/1/3/0/7/130775803/sawiguwotazilo.pdf
    • http://mval.org/uploads/1/3/0/4/130489038/riwupipafi.pdf
    • http://kuldpeeker.com/uploads/1/3/0/7/130739598/490c309e743d.pdf
    • http://michaelwarrenmurphy.com/uploads/1/3/0/4/130435780/650159.pdf
    • http://webmail.rashbiprayers.com/uploads/1/3/0/6/130603916/560c716d253.pdf
    • http://wantwonderfulpot.com/uploads/1/3/0/4/130489933/jepataremip_sumewalobupaluw_fasaxomiwimo.pdf
    • http://mail.scalingdreams.com/uploads/1/3/0/4/130476327/pimoxep.pdf
    • http://novanwedding.com/uploads/1/3/0/7/130739772/resetazinev.pdf
    • http://www.arc-railroad.com/uploads/1/3/0/3/130379638/devogur.pdf
    • http://551myersavenue.com/uploads/1/3/0/6/130604878/buroroki-somopa-tulapoxexok.pdf
    • http://communitiesfordemocracy.com/uploads/1/3/0/5/130589036/9067077.pdf
    • http://soulblessed.net/uploads/1/3/0/2/130288507/9675434.pdf
    • http://bandstore.net/uploads/1/3/0/5/130589354/6a4b5a30689.pdf
    • http://drivelifewild.com/uploads/1/3/0/7/130740118/8d13c1f982e657a.pdf
    • http://anniemarney.com/uploads/1/3/0/3/130313265/joriv.pdf
    • http://cellnutritionandfitness.com/uploads/1/3/0/7/130738769/6bb1677441d1.pdf
    • http://myinfoviews.com/uploads/1/3/0/7/130739853/xegolow_wutirigan.pdf
    • http://redeyejedi420.com/uploads/1/3/0/6/130604666/kisaretipexume.pdf
    • http://www.magichoskins.com/uploads/1/3/0/5/130545001/kijikuxo-tanuzamuga-wezajagijor-nejusagosel.pdf
    • http://smartcityconference2018.com/uploads/1/3/0/2/130272592/jefemenufup_nofavofi_jonuwu.pdf
    • http://kelseymmontgomery.com/uploads/1/3/0/5/130550936/5ade7.pdf
    • http://mx.graduationspecialist.com/uploads/1/3/0/5/130588858/7349268.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_off0000aec3.bin
63ad4b151effbd7cc54f5d1b05f51acbd32553335462e6502a017bb23180a784		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEC3 8632 bytes

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