PDF malware analysis — malicious · a297639b7fc55fff

MALICIOUS

PDF

38.9 KB Created: 2020-04-02 08:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 8a9a333e7a82593e6736353d5d71b7da SHA-1: 3c77caa5d064d758aa8631d1d83308e38d746d8b SHA-256: a297639b7fc55fffd07f838db67ab99a4d67be64dbab5b0915d9e906f7f5a4f4

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified as a PDF link farm. The document body text, though partially corrupted, indicates a lure related to 'exercises of combined operations of addition and subtraction of integers'. The primary intent appears to be directing users to numerous external websites, likely for SEO spam or to host further malicious content. No scripts were extracted, limiting the analysis of direct payload delivery.

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://bychristinamarie.com/uploads/1/3/1/4/131407469/131407469.html#ejercicios+de+operaciones+combinadas+de+suma+y+resta+de+numeros+enteros
- http://ellipseatlantic.com/uploads/1/3/0/5/130545360/zamidino-nowemuk-mawibibululen.pdf
- http://farisalsaid.com/uploads/1/3/0/7/130775920/belunonarisid.pdf
- http://artportfolioorganizer.com/uploads/1/3/1/0/131070979/zafal.pdf
- http://alpenroseconsulting.com/uploads/1/3/0/3/130323298/1408568.pdf
- http://studiokirbyartistry.com/uploads/1/3/0/5/130541208/xupelixe_bezuremeve_muzegenir.pdf
- http://andrewmorgancoaching.com/uploads/1/3/0/7/130775137/lanupu_fikenevubowiv.pdf
- http://nowphotobooths.com/uploads/1/3/1/1/131164557/fawemewegimasoxo.pdf
- http://stevelsmith.com/uploads/1/3/0/5/130588256/tufemu_dewane_gujamidi_xipoxasijemuxo.pdf
- http://talithawashington.org/uploads/1/3/0/4/130483756/923010.pdf
- http://theagfix.com/uploads/1/3/0/5/130590463/xofavifalibokogulogo.pdf
- http://roosthousingcoop.org/uploads/1/3/0/6/130604557/mokoxogerozur.pdf
- http://twobobblues.com/uploads/1/3/0/7/130775537/c545ddf3bfe15.pdf
- http://corvuspress.net/uploads/1/3/1/3/131383959/rufarakonupat-lugejeluvaruw-pobeworoxatifox-tuzerifo.pdf
- http://malefranch.com/uploads/1/3/0/4/130436426/3399816.pdf
- http://thehivearizona.com/uploads/1/3/0/6/130604996/5009488.pdf
- http://agapefreetractministry.com/uploads/1/3/0/7/130740068/gubifonum.pdf
- http://youngretireetravel.com/uploads/1/3/1/3/131380788/5337293.pdf
- http://bluebirdconcreteliftingandrepair.com/uploads/1/3/0/7/130739944/liwufera_datexala_jolumewejesem.pdf
- http://salnavarroinsurance.com/uploads/1/3/0/6/130620412/lawanetu_kuzesoxabik.pdf
- http://justforhimm.org/uploads/1/3/0/7/130739731/9d92d30b558a.pdf
- http://198447.xyz/uploads/1/3/0/6/130639634/jibivul.pdf
- http://wwwkosmetikdasilva.com/uploads/1/3/0/5/130544938/fd3a211164efad3.pdf
- http://wwwkosmetikdasilva.com/upload
- 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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ee3.bin` `75c5168ac57c99cb181df1d3ed3022fbb7088c3e6a230534766fe80ebea4ad94`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EE3	8148 bytes

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