Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee77e2f5d2b55755…

MALICIOUS

PDF

42.8 KB Created: 2020-05-17 15:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5fa14fe3b825bbd4b720367fe9c2c88 SHA-1: c96185ddd42931e6201f29b211f038491884a4b2 SHA-256: ee77e2f5d2b557554a4fa36071758ebd93d80b5c7d22d982c4026be0b36a85cc
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links pointing to various domains, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains URLs that are part of this link farm. No scripts were extracted, limiting the analysis of direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • 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://spectrumherniaclinic.com/uploads/1/3/1/6/131606807/131606807.html#guided+imagery+therapy+near+me
    • http://turnheadsmn.com/uploads/1/3/0/8/130814706/josokeg.pdf
    • http://bellezaalpaca.com/uploads/1/3/1/4/131483098/91acf99b9.pdf
    • http://amazonprimedesk.com/uploads/1/3/0/5/130541763/kabomipokuri.pdf
    • http://poetbydesign.com/uploads/1/3/0/8/130814245/448509.pdf
    • http://kwcdproductivity.com/uploads/1/3/1/4/131453288/duwedewosub_wotupowadu.pdf
    • http://dkigroupllc.com/uploads/1/3/1/3/131380606/7320507.pdf
    • http://revrhondawillerer.com/uploads/1/3/0/9/130969539/fumafigirosupanokaw.pdf
    • http://fabstieve.com/uploads/1/3/0/4/130488387/5808079.pdf
    • http://nataliesaiphmassone.com/uploads/1/3/1/6/131637161/malar.pdf
    • http://craigsoklahomapride.com/uploads/1/3/0/2/130271153/kimupixipozefodera.pdf
    • http://beaconmohs.com/uploads/1/3/0/5/130541688/5594503.pdf
    • http://reebshomeinspections.com/uploads/1/3/0/2/130289158/3283e50ca64.pdf
    • http://essenceofthefeminine.com/uploads/1/3/1/8/131856545/d33b0da25af.pdf
    • http://backstagepassmag.com/uploads/1/3/0/8/130814728/3409139.pdf
    • http://calvarynewlifesa.net/uploads/1/3/0/4/130479171/1296743.pdf
    • http://aussiebeachfun.net/uploads/1/3/1/4/131453832/fufukafobulupomup.pdf
    • http://girlfriendsgodsway.com/uploads/1/3/0/6/130621765/8ddbdbf.pdf
    • http://brunchdelivered.com/uploads/1/3/1/3/131379553/1860843.pdf
    • http://vindjefietsterug.nl/uploads/1/3/0/5/130590716/3591877.pdf
    • http://bemorebalanced.com/uploads/1/3/1/0/131070167/1737430.pdf
    • http://toptalentmgt.com/uploads/1/3/0/6/130620635/6e552f.pdf
    • http://rwsecuritynews.com/uploads/1/3/0/4/130483397/morobaben.pdf
    • http://myhairylife.com/uploads/1/3/1/4/131406802/7039077.pdf
    • http://modimody.com/uploads/1/3/1/3/131379803/kefulegopimobizeza.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_off00007bcc.bin
41b077003924ecf5bc9300b09f8e77facd3628007b6e1f0427f72a24b37b5f61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCC 10376 bytes

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