Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a2155532fb8738d…

MALICIOUS

PDF

32.6 KB Created: 2020-05-09 22:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a63911dc848f753a8f4081ddd1cfa6e9 SHA-1: db456666e4648e555cefb1eb0648f105facf8dcb SHA-256: 2a2155532fb8738d99f7294eb340e24d50d978a8679630464b35b2861ea5acb5
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm. This technique is often used to manipulate search engine results or to redirect users to malicious websites. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jordansj22.org/uploads/1/3/1/4/131438500/131438500.html#a+beautiful+mind+soundtrack+free
    • http://essentialoilremediesbycindy.com/uploads/1/3/0/5/130588678/vaketegir-pejoxixilu-javuxonojudog-jipogo.pdf
    • http://hashilaboratory.com/uploads/1/3/0/7/130775176/notevorerigagakumor.pdf
    • http://sidehustlein7days.com/uploads/1/3/0/8/130873958/848062.pdf
    • http://lilmissrealtor.com/uploads/1/3/0/8/130813757/lekururemov.pdf
    • http://worldofhype.org/uploads/1/3/1/4/131409709/7527210.pdf
    • http://revueservices.com/uploads/1/3/0/4/130489097/vomozukibenulun.pdf
    • http://mtmusicservices.com/uploads/1/3/0/4/130435682/21197f4.pdf
    • http://selenamclaughlin.com/uploads/1/3/0/4/130483673/makuvaf.pdf
    • http://inkbybeth.com/uploads/1/3/1/6/131637635/6918554.pdf
    • http://myfantasyfootballworld.com/uploads/1/3/0/4/130489536/revod_ronividiza_nunevapo.pdf
    • http://cashflowcure.com/uploads/1/3/0/2/130289495/nulamebef.pdf
    • http://majopacleaning.com/uploads/1/3/0/2/130289597/winatojorato.pdf
    • http://kellettcommunications.com/uploads/1/3/0/4/130435795/5289302.pdf
    • http://therestaurantface.com/uploads/1/3/0/5/130551140/2de378012e.pdf
    • http://superconscioustv.com/uploads/1/3/1/4/131452842/juxotevabowor_senesuju_famapu.pdf
    • http://thecraftfoundationtrust.com/uploads/1/3/0/6/130639910/7c257d8e74bb9e9.pdf
    • http://grownouveaudoula.com/uploads/1/3/0/9/130969340/xesuwe.pdf
    • http://tatismoving.ca/uploads/1/3/0/4/130436431/xemasimadukinal_fesofafetu_pekedozefa.pdf
    • http://harborhillsestates.com/uploads/1/3/0/5/130543285/fanifenivatizobejifa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00005a5a.bin
925e1f4b0b40d57f069ee6f44c41729c0990dfb884455be6435c0b170f53b419		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5A 8764 bytes

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