Malicious PDF — malware analysis report

Static analysis result for SHA-256 682c7ad46c7ff644…

MALICIOUS

PDF

52.6 KB Created: 2020-04-02 03:05:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9cd202a02335cabb33c265b86c592ec7 SHA-1: e95bb5992444b1c0360d78e67d9400c2aa0f48ea SHA-256: 682c7ad46c7ff6446956702724ae48d7ed97440ea3bb2eaa8f8d429a3706d508
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary URL points to a page with a title suggesting a program for changing IP addresses, indicating a potential lure for malicious activity. While no scripts were explicitly extracted, the presence of numerous external links suggests the document is designed to redirect users to potentially malicious websites, possibly for phishing or malware distribution.

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://recapturewealth.com/uploads/1/3/0/5/130539170/130539170.html#%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BC%D0%B5%D0%BD%D1%8B+ip+%D0%B0%D0%B4%D1%80%D0%B5%D1%81%D0%B0+%D0%BA%D0%B0%D0%BC%D0%B5%D1%80%D1%8B
    • http://theunadorned.com/uploads/1/3/0/9/130969541/zunulawoj.pdf
    • http://pagepropertiesofsavannah.info/uploads/1/3/0/6/130605462/pigovaged-kufatigiwapa.pdf
    • http://pisteciclabili.net/uploads/1/3/0/6/130604666/lunuvokaxavafoja.pdf
    • http://jgd-photography.com/uploads/1/3/0/8/130874411/filevobimevirako.pdf
    • http://flashotsstudio.com/uploads/1/3/0/7/130776183/juzururetejosu-rotavaweja-rasezikelutegop.pdf
    • http://audreylewisinteriors.com/uploads/1/3/0/6/130604688/reloborej_dabiwuva_fidaz.pdf
    • http://kypho-correct.com/uploads/1/3/0/6/130604654/e67edb349.pdf
    • http://coastal-virginia-photography.com/uploads/1/3/0/7/130776401/3140675.pdf
    • http://planthealthcare-mortonarb.org/uploads/1/3/0/6/130621570/fogek-wadegubu-bobipisi.pdf
    • http://china-wood-flooring.com/uploads/1/3/0/5/130551258/dijezexafota.pdf
    • http://msgwaste.com/uploads/1/3/0/6/130621397/dowopatinemaka-kusufofoxetix-nagizapofiwo.pdf
    • http://bestofthewestmoving.com/uploads/1/3/0/5/130541023/jusug-bisanun-pagibiwo-midolubomijoner.pdf
    • http://mhcsltd.org/uploads/1/3/0/7/130776872/mapesopiwulopij.pdf
    • http://vacationsxm.com/uploads/1/3/0/7/130738666/4785a7c3af20.pdf
    • http://75-50-210-138.diamonddoorltd.com/uploads/1/3/0/6/130620340/lobovokiv_silebigoju_babebo.pdf
    • http://trucareinvestmentsllc.com/uploads/1/3/0/6/130640146/5417419.pdf
    • http://bainbridgetire.com/uploads/1/3/1/3/131398243/ruzugade.pdf
    • http://wayuptarot949.com/uploads/1/3/0/4/130477541/kizopategirimifa.pdf
    • http://comptonkahui.com/uploads/1/3/0/4/130436252/xotigonoviperubu.pdf
    • http://gaysceneaustin.com/uploads/1/3/1/0/131070113/7207477.pdf
    • http://mjkyarchitects.com/uploads/1/3/0/8/130814241/00df9.pdf
    • http://minerhosting.at/uploads/1/3/0/2/130274258/rivotav.pdf
    • http://palmettostateofmind.com/uploads/1/3/0/7/130774970/4838149.pdf
    • http://freshwaterscouts.com/uploads/1/3/0/5/130538997/megarelubibu.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_off000094f3.bin
7626952ee8376b7803bf3d07ec04371b1013614c036fc153f9c600356bbbb4fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94F3 13716 bytes

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