PDF malware analysis — malicious · 0c0a012b6d6f96d6

MALICIOUS

PDF

36.3 KB Created: 2020-06-05 17:52:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6e5b7c786e75af0e6bb75ee711157cfa SHA-1: e2e8334bb304b0b151e4ed41bf7a381f91579db2 SHA-256: 0c0a012b6d6f96d6edad8a9288b14c288a64113fbd01a17b4192bd733b00eb3d

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may also contain instructions for accessing password-protected content, a common tactic to bypass security filters.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://savannahsmedicalmassage.com/uploads/1/3/1/4/131453096/131453096.html#autoclave+validation+protocol+pdf
- http://mta42.somekindofsimple.com/uploads/1/3/0/5/130540420/lodemud.pdf
- http://bramblewoodpublishing.co.uk/uploads/1/3/0/5/130550859/delonodab.pdf
- http://5-aas.com/uploads/1/3/0/4/130483368/jejoxixo.pdf
- http://grannygoesgreen.maryhigginswebdesign.com/uploads/1/3/0/5/130543543/bf796eda9.pdf
- http://midwestmines.com/uploads/1/3/0/6/130620406/rubojizejolanexo.pdf
- http://hostmaster.esessence.co.uk/uploads/1/3/0/5/130539517/9d5ebe6de189.pdf
- http://swcounselingexam.com/uploads/1/3/0/3/130379151/bugoj_wevuxesotexipe_wuwobutevulukiv.pdf
- http://reclaiminghopecounseling.com/uploads/1/3/0/7/130739786/1513834e0ffe5f4.pdf
- http://savannahsmedicalmassage.com/uploads/1/3/1/4/131453096/terms.html
- http://savannahsmedicalmassage.com/uploads/1/3/1/4/131453096/dmca.html
- http://savannahsmedicalmassage.com/uploads/1/3/1/4/131453096/policy.html
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://segemabo.files.wordpress.com/2020/06/75537621169.pdf
- https://riduvetixaxu.files.wordpress.com/2020/06/vuvefidevagamikezep.pdf
- https://vokosufike.files.wordpress.com/2020/06/dadose.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/
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000619a.bin` `4d6f5b5b64cd241f1e05026561769b7ca519237f28e65971b59053c41ce02461`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x619A	10824 bytes

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