Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f1d82adc2b9929f…

MALICIOUS

PDF

45.3 KB Authoring application: pstoedit
MD5: 490bd99dbf6b574d53dcb4ad79904fac SHA-1: 7fcf2cd059cbb87cea1d2830713a12f9e07e8d4a SHA-256: 3f1d82adc2b9929f11070435a1c65da7a3af0b8e3d30458ffc07c2b8a72b6899
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, also contains URLs pointing to external PDF files. This suggests the primary purpose is to redirect users to a link farm, likely for SEO manipulation or to distribute further malicious content. 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.
  • 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://whatyouwantcreations.com/uploads/1/3/0/5/130539757/7039261.pdf
    • https://wasovizikabimil.weebly.com/uploads/1/3/0/3/130323518/4232516.pdf
    • https://xizudujezibodap.weebly.com/uploads/1/3/0/3/130324206/7857056.pdf
    • http://myaccount-solution.net/uploads/2020/01/27/1a533.pdf
    • http://fitlekarna.com/uploads/1/3/0/4/130488935/baliwewofom.pdf
    • http://rim.favorsvet.com/uploads/2020/01/27/rowegejitolade-xonakoj-ridav-pakat.pdf
    • http://hewittmft.com/uploads/1/3/0/6/130604105/webelanunurur.pdf
    • http://romisoti.samokontrol.ru/uploads/2020/01/27/xeguxotoretadasov.pdf
    • https://zafojewun.weebly.com/uploads/1/3/0/2/130289558/watesijekojotovike.pdf
    • http://iqseries.de/uploads/1/3/0/6/130603851/paxoxos_mosofonezotur_kedapi_punurirud.pdf
    • http://moviestvsports.com/uploads/1/3/0/5/130551697/sobibivoruramiji.pdf
    • http://kox.fito-spray-ellada.online/uploads/2020/01/27/zugezadilisidawal.pdf
    • http://goxa.shengen.info/uploads/2020/01/28/d8924a32a2.pdf
    • http://transformationhandbook.com/uploads/1/3/0/3/130323602/mesuwosaf_vamef.pdf
    • http://peden.tanglamstore.com/uploads/2020/01/28/fazilev.pdf
    • http://kneeandhipconsultant.com/uploads/2020/01/27/kiragivat.pdf
    • http://lachouettealunettes.com/uploads/1/3/0/4/130436441/noruk_volugojibol_sarivaj_daxezido.pdf
    • https://daviwamasazoluz.weebly.com/uploads/1/3/0/5/130538981/1213884.pdf
    • http://girlfriendsfitnessparsons.com/uploads/1/3/0/5/130539105/totemuxopuzedowimodu.pdf
    • http://annethielen.nl/uploads/1/3/0/3/130379298/911c90737c1aca5.pdf
    • http://dewed.dturen.com/uploads/2020/01/28/mazonozaben.pdf
    • http://pameladirnberger.com/uploads/1/3/0/6/130640229/130640229.html#bbc+iplayer+apk+file

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000169d.bin
40a6738ff3c0b4a2baabfb60d11fb61e2f909fcdf83c4acbce1900e40aee0b1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x169D 8784 bytes
font_01_sfnt_off0000684c.bin
67fc5177fd584259d92df2d04361ee5812aeaf6169251fafb29fd1ddf16900d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684C 16500 bytes

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