PDF malware analysis — malicious · e26f883324432355

MALICIOUS

PDF

38.9 KB Authoring application: Smallpdf Desktop First seen: 2021-06-13

MD5: edb8223bc582d068e1e043dc82fc82a5 SHA-1: efbc78542454f0e0b39293f393904b4645c6cd60 SHA-256: e26f883324432355fd037bb29d3152b50b1004a4331f2d426acca1bbb64e448f

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a phishing or redirection campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this. The ML classifier also flagged the document with high confidence. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
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.
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://elizabethmackintosh.com/uploads/1/3/0/6/130621958/0df0e.pdf In PDF document text
- http://beingself-centered.com/uploads/1/3/0/2/130289669/getimanudof.pdfIn PDF document text
- http://jesusloveforyou.com/uploads/1/3/0/6/130639812/72ee3053f59.pdfIn PDF document text
- http://whatthesaintsknew.org/uploads/1/3/0/6/130605048/4375822.pdfIn PDF document text
- http://mychangingthenarrative.com/uploads/1/3/0/3/130313336/3e63fd15.pdfIn PDF document text
- http://muleartist.com/uploads/1/3/0/6/130640078/c04e60c40.pdfIn PDF document text
- http://truecorners.com/uploads/1/3/0/3/130323302/paboferebizen-repapapikede-wovav.pdfIn PDF document text
- http://academicbusinesscreative.com/uploads/1/3/0/6/130620963/zagogifov.pdfIn PDF document text
- http://nomoremondays.us/uploads/1/3/0/6/130621460/bituxat-jakam-nupizeki-mezetubesow.pdfIn PDF document text
- http://paisleyscavaliers.org/uploads/1/3/0/5/130550703/0040ab74b5547f.pdfIn PDF document text
- http://davidwshoemaker.com/uploads/1/3/0/6/130605012/f9d7e3b92cfaa8.pdfIn PDF document text
- http://stellarconcessions.com/uploads/1/3/0/6/130639791/862223.pdfIn PDF document text
- http://tevopidibu.sanacomounamanzana.com/uploads/2020/01/28/b993b3.pdfIn PDF document text
- http://alexpepstein.com/uploads/1/3/0/6/130639960/dizugutewuro_vagoto_dixoxesuke.pdfIn PDF document text
- http://nugufa.finance-aurebo.com/uploads/2020/01/29/woxewawefijaw.pdfIn PDF document text
- http://mohamed-albarasi-academy.com/uploads/1/3/0/4/130477633/fezez-tokeza-wopemop.pdfIn PDF document text
- http://northcoastwalkingtours.com/uploads/1/3/0/5/130540746/130540746.html#after+effects+cs6+shortcut+keys+pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000150e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x150E	8300 bytes
SHA-256: `e81cd00e91f5f2cd2f029ff8feb54c516f61d7f210036c11f40c9e5508596eef`
`font_01_sfnt_off00005c1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C1B	2732 bytes
SHA-256: `da6e935b6a97a045a0c5629c3666d6f53d7c870963c8d55116ca0c7eba84cbf8`

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