Malicious PDF — malware analysis report

Static analysis result for SHA-256 0df4141f569c6cc8…

MALICIOUS

PDF

36.2 KB Authoring application: PDFedit
MD5: 09eb6400d98f77eecc1e909eff2ad35b SHA-1: 72a0c8e328b43f8546ad7187058e9a9f0dcf2a01 SHA-256: 0df4141f569c6cc83791bd267fb50e347dba4e772ea0ca3020d8449e8645003f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicating a link farm or redirection scheme. This behavior is consistent with SEO poisoning or phishing campaigns designed to drive traffic to malicious content. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://freshlypict.com/uploads/1/3/0/6/130620365/lawusilek.pdf
    • http://cotic.com.hr/uploads/1/3/0/5/130543945/5717952.pdf
    • http://rauenhorst.com/uploads/1/3/0/4/130436258/rugexux.pdf
    • http://brynmawrrestaurants.com/uploads/1/3/0/7/130739906/rudenovi.pdf
    • http://ninjadiveteam.com/uploads/1/3/0/6/130620668/1619863.pdf
    • http://ridufo.ladies.wine/uploads/2020/01/29/bubatamosiduwu.pdf
    • http://yourpublicistknows.com/uploads/1/3/0/5/130550748/korotewukapomo_naxolaforunexuw.pdf
    • http://kaleidoscoperecords.net/uploads/1/3/0/4/130476248/010f4cb40a8df7.pdf
    • http://timtucker.tv/uploads/1/3/0/2/130270746/1037465.pdf
    • http://jordanlosesweight.com/uploads/1/3/0/6/130604361/suzetoga.pdf
    • http://cinno.ca/uploads/1/3/0/4/130490776/rovobopefijodi_kixugujaxorofi.pdf
    • http://drvdv.com/uploads/1/3/0/5/130590763/0c0d507.pdf
    • http://premiumdealsclub.com/uploads/1/3/0/4/130483248/lebumiwadetozukafeg.pdf
    • http://universityanesthesiology.com/uploads/1/3/0/2/130274343/jafofulagejudoxito.pdf
    • http://coxlaboratories.com/uploads/1/3/0/6/130621282/3c4420f080b.pdf
    • http://patricianesci.com/uploads/1/3/0/5/130539935/ed904.pdf
    • http://oilbalance.com/uploads/1/3/0/6/130605399/vitubabedav.pdf
    • http://suitemeter.com/uploads/1/3/0/2/130291724/1b6a684f31.pdf
    • http://144central.com/uploads/1/3/0/5/130589430/3273818.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/5/130589245/130589245.html#sickle+cell+anemia+and+malaria+evolution

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb9.bin
0f5022cd1a1e798f560a18d71f5c2963beeb8b47a113cc12719dfa0efa34db27
pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB9 7704 bytes