Malicious PDF — malware analysis report

Static analysis result for SHA-256 0adcf4bceb94b552…

MALICIOUS

PDF

51.5 KB Authoring application: pdf-parser
MD5: ad45b414b3bd62688dae8dc190d81bdb SHA-1: 3fb4e3a13e5954b201475c5e0f8493c223279903 SHA-256: 0adcf4bceb94b55286b852731ec14726b747c32316fbcc37b60cb3f5272d3672
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm, suggesting a malicious intent to redirect users to potentially harmful content. The ClamAV detection and ML classifier further support its malicious nature. The document body is heavily obfuscated and does not provide clear instructions, but the presence of numerous external URLs points towards a phishing or content-distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://saborunico.shop/uploads/1/3/0/2/130289668/3348502.pdf
    • http://201powersports.net/uploads/1/3/0/2/130274376/8242447.pdf
    • http://chateauneuf-v-s-d-04.wstudio.website/uploads/1/3/0/3/130379167/a70e3b6476b62f.pdf
    • http://www.tulip.eco/uploads/1/3/0/7/130740129/vawomisu-revutogupug-bizewipowazov-disezeliparu.pdf
    • http://customerexperienceworld.co.uk/uploads/1/3/0/5/130551423/wulojunemubufopikub.pdf
    • http://www.lakerentertainment.com/uploads/1/3/0/5/130538939/kukenosok_wakuwofizeg_sebexo.pdf
    • http://myfaraja.com/uploads/1/3/0/8/130873843/686c5560449d84e.pdf
    • http://mail.lsten.net/uploads/1/3/0/2/130291724/goniwam.pdf
    • http://bbailey24.com/uploads/1/3/0/2/130289377/aea1df7c1.pdf
    • http://buttonsnmoore.ca/uploads/1/3/0/8/130815311/kokinepovivezibidime.pdf
    • http://mythebestsully.org/uploads/1/3/0/4/130489359/e8f4f36ae3.pdf
    • http://tokeplusherbs.com/uploads/1/3/0/6/130621304/2204546.pdf
    • http://hushhushcabaret.com/uploads/1/3/0/5/130551782/448227.pdf
    • http://almultiservices.ca/uploads/1/3/0/5/130539370/16ebafeb4e6b0f.pdf
    • http://humanstellstories.com/uploads/1/3/0/6/130604458/1278da686066.pdf
    • http://djprince.info/uploads/1/3/0/6/130621426/tamivujuxusol_mazixu_donudojawesot_jirijivijurok.pdf
    • http://9roundmemphis.com/uploads/1/3/0/5/130541765/152be1.pdf
    • http://mint-uk.com/uploads/1/3/0/3/130323928/4b8396afb2.pdf
    • http://mrzelectric.com/uploads/1/3/0/7/130776898/575404.pdf
    • http://www.runforroots.org/uploads/1/3/0/5/130589243/4963674.pdf
    • http://shenprayer.club/uploads/1/3/0/7/130739806/8878777.pdf
    • http://berlin-sevens.com/uploads/1/3/0/2/130288775/sivobek.pdf
    • http://moonrisetours.com/uploads/1/3/0/4/130478566/3e1f55dceadb4c1.pdf
    • http://keybiscaynetennis.com/uploads/1/3/0/6/130604391/sizaropokok.pdf
    • http://lsr3pzn.brdge.org/uploads/1/3/0/5/130550679/130550679.html#max+tylenol+dose+adults
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a04.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A04 16036 bytes
font_01_sfnt_off000061c7.bin
456d7de8e68bf4a60f7a7666722b93e96e14a399e83721103702b6f483f6f676
pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 9628 bytes