PDF malware analysis — malicious · 01281244df005183

MALICIOUS

PDF

76.2 KB Created: 2021-07-19 02:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: c79f3202227198dbe28b0922cd709c0a SHA-1: 0b5e289499803f1fc88ef314e09ebd746bd46037 SHA-256: 01281244df005183c7ca2d227ed0bbb024914829c6cbb15c85621b3aa2f8a4b6

64 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links. While no scripts were extracted, the structure and URL patterns suggest an attempt to manipulate search engine rankings or redirect users to malicious sites, potentially as part of a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier suspicious score 0.4750

Heuristics 4

PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://cga82.com/admin/File/52414915.pdf In PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bd3cabee7---37738318365.pdfIn PDF document text
- http://kasargod.net/uploads/file/29840679602.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/655f166c8a1defa43ed655281ecd59b0/88149214281.pdfIn PDF document text
- http://asianmosaicnyc.com/userfiles/file/87020270027.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ad1015ce1---70652995496.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160852ca320232---fenozo.pdfIn PDF document text
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160cee3d27ab65---kawos.pdfIn PDF document text
- http://brmhn.com/userfiles/file/20210531134548_pft8ij.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160dcaf7d42ba5---tadazipawedelonudef.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/9104850457ac6671a3f66c0f39f57d5b/jodijavikebujodusojolo.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077a17aacbd5---41126257647.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/2jjr8vs5gpi7kkdssb48hlhru7/76576431029.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/j27hcl3jcln5tn4knqitp1j3fd/fazorapemi.pdfIn PDF document text
- http://cck-brno.cz/ckfinder/userfiles/files/60694584134.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/besimujadowojivuxiz.pdfIn PDF document text
- http://cristal-in.fr/userfiles/file/13470020173.pdfIn PDF document text
- http://www.ximangsongthao.com/app/webroot/uploads/files/fodevusaligilolaf.pdfIn PDF document text
- http://yilip.net/userData/board/file/33218807697.pdfIn PDF document text
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/0c9bfc49495c0e4db624fa5021cc34e6/30666230204.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160c77e5005ea5---64588370137.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160775a234a787---73308123699.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cdc69e3f94---gopewaselefejapijopeju.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/13040945998.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=2+tablespoons+fresh+parsley+equals+how+much+dried+parsleyPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ed25.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED25	11492 bytes
SHA-256: `2a52342164db196eab41aaa241ce9a8c41bf9eba198bab6df49c970d48290e61`
`font_01_sfnt_off000107e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x107E6	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.