Malicious PDF — malware analysis report

Static analysis result for SHA-256 b34517b31f6567be…

MALICIOUS

PDF

34.2 KB Created: 2020-03-13 16:36:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d33c7c81890dfb782406222a404142a SHA-1: a103f4452c19d4a56827c0548763960df2f7088d SHA-256: b34517b31f6567be58c081d0fc3737dd2e229fe506163ca55425cd21fd613288
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links pointing to various PDF files hosted on different domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The document body itself is largely unreadable binary data, but the presence of numerous URLs strongly suggests a malicious intent to redirect users. No scripts were extracted from this sample.

Heuristics 3

  • 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
  • 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://guangxingmianfeikaihu.br3h.com/uploads/1/3/0/7/130775198/130775198.html#personality+adjectives+english+file+intermediate
    • http://kenkeefe.com/uploads/1/3/0/5/130551144/ab9ed.pdf
    • http://cool-jugs.com/uploads/1/3/0/7/130775115/49c27f3.pdf
    • http://www.rickparkerfineportraiture.com/uploads/1/3/0/4/130476738/nuvorezojenoj_mikamelajiro.pdf
    • http://jvmechanical.org/uploads/1/3/0/5/130588550/4773219.pdf
    • http://zoeapos.com/uploads/1/3/0/7/130775229/punali-tasakefanelexi-fawedifodaw.pdf
    • http://www.notanotherboutique.net/uploads/1/3/0/8/130874623/6f60d76c9d315.pdf
    • http://covernpages.com/uploads/1/3/0/6/130620345/rutonokuta.pdf
    • http://hostmaster.toekomstgeluid.nl/uploads/1/3/0/4/130435857/3565397.pdf
    • http://bbnla.com/uploads/1/3/0/5/130589275/terilaf.pdf
    • http://www.dirtjoy.com/uploads/1/3/0/6/130621436/bigawik_nizupoxa_nudewalegum.pdf
    • http://hostmaster.semperfidelisconsultancy.co.uk/uploads/1/3/0/6/130621620/xerelefowopuxizu.pdf
    • http://kuerptyltd.com/uploads/1/3/0/6/130604487/xesejifu-wejaloj.pdf
    • http://sizemattersstorage.com/uploads/1/3/0/5/130589261/rekubafepevupoxevate.pdf
    • http://bethanyelectric.net/uploads/1/3/0/6/130639514/jijoremurunegiz_ledosudimosine_zureposib.pdf
    • http://lpcoalition.com/uploads/1/3/0/2/130272591/3197194.pdf
    • http://chicagostpatsparade.com/uploads/1/3/0/4/130435583/1514d53.pdf
    • http://elizabethcoopersboutique.com/uploads/1/3/0/5/130589415/2781207.pdf
    • http://mickfarm.com/uploads/1/3/0/6/130621751/b2d953bd9dc.pdf
    • http://upperlip.info/uploads/1/3/0/9/130969747/5782705.pdf
    • http://www.assistancedogassociation.org/uploads/1/3/0/3/130379164/922778.pdf
    • http://molybowscraftsandmore.com/uploads/1/3/0/7/130740349/lujifatojokub-zomewon-kegoxewumamomu-makusigevuzofew.pdf
    • http://cpanel.entertain.hk/uploads/1/3/0/5/130589270/fd63add.pdf
    • http://rush-scape.com/uploads/1/3/0/2/130287529/wakerewemevusiwolu.pdf
    • http://lgbaonline.org/uploads/1/3/0/4/130489144/xupowizipafabur.pdf
    • http://rush-scape.com/u
    • 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_off00005e86.bin
07efd70f1ec6e7936ab28019ee9cccc3c6f79551e61e91576cb96433174f517f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E86 7196 bytes

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