Malicious PDF — malware analysis report

Static analysis result for SHA-256 a038fbc2d6b3f5be…

MALICIOUS

PDF

46.0 KB Created: 2020-04-01 17:57:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 08b9b222438be80a2e8224d8e1fd23ff SHA-1: 5011c6c6279c14240645a246d63c490e809f1480 SHA-256: a038fbc2d6b3f5be8bb33dacd0d44c9570667b729ee50c6c4adc1130900f8382
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier also flagged this PDF as malicious with high confidence. The document body contains text related to clothing brands and PDF metadata, suggesting a lure to disguise the malicious link farm functionality. The primary attack pattern appears to be distributing malicious links disguised as content, potentially leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ben-collie.com/uploads/1/3/1/4/131409055/131409055.html#las+marcas+mas+reconocidas+ropa
    • http://swap-party.org/uploads/1/3/0/7/130738721/wegatuzijakipoler.pdf
    • http://afrocentricfilmscollaborative.com/uploads/1/3/0/5/130538956/114657.pdf
    • http://youthdreambig.com/uploads/1/3/0/6/130622000/kutozokepovav.pdf
    • http://joeykasz.com/uploads/1/3/0/2/130272609/dazojen-nibuxorejatop.pdf
    • http://wiesd.net/uploads/1/3/0/9/130969762/f693399dd3b9e6.pdf
    • http://dominotek.net/uploads/1/3/0/4/130490808/2597814.pdf
    • http://newsmapper.org/uploads/1/3/0/5/130543050/8339637.pdf
    • http://otero2018.com/uploads/1/3/1/3/131379040/geduv-sutelewodene.pdf
    • http://fusiondesigntech.com/uploads/1/3/1/3/131379724/8138683.pdf
    • http://chinoxx.com/uploads/1/3/0/8/130813852/tixuzidatefipuf_vadaxofarux_podejawupa_poparus.pdf
    • http://livelovelearnfrench.com/uploads/1/3/1/3/131384021/fefewev-poxazo.pdf
    • http://savlisandcompany.com/uploads/1/3/0/2/130270921/jizuzaj_dafividupobi_zeroli_gabapu.pdf
    • http://ellaschoeferwulf.com/uploads/1/3/1/3/131398374/4658300.pdf
    • http://hicleaningservices.com/uploads/1/3/0/5/130539107/menelulumujej-zulonarivabuteb-bidulagidi-faxener.pdf
    • http://mmassociateseducators.net/uploads/1/3/0/7/130776875/tadokesakifisi.pdf
    • http://winwinpolicy.com/uploads/1/3/0/4/130483858/4701231.pdf
    • http://healthandbeautycare.shop/uploads/1/3/0/6/130620899/wekijigi.pdf
    • http://zilischasphalt.com/uploads/1/3/0/4/130435570/bd080d76b3bbd3.pdf
    • http://papercutsnc.com/uploads/1/3/1/3/131381101/735a9e5.pdf
    • http://seawaterceramics.com/uploads/1/3/0/6/130621581/tufozab.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_off000086a3.bin
074cbbba9ce127b3684f3152eb002bc311bae01af3b3809053f9a41d886352d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A3 9804 bytes

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