Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4eada2e0f31583a…

MALICIOUS

PDF

53.8 KB Authoring application: SWFTools
MD5: bac01f7a2863369d66ac960be27b7615 SHA-1: 466b23ac7102a39ac29f1a99f272eab924d7ceca SHA-256: f4eada2e0f31583a1e64708e237a6258d51ab65c3126d799ba5d2131d927c962
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body appears to be corrupted or obfuscated, preventing a clear understanding of its direct user-facing content, but the overall structure points to a link farm distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 https://derasonosewi.weebly.com/uploads/1/3/0/5/130539267/bd18ef.pdf
    • http://thedjbsmooth.com/uploads/1/3/0/6/130621503/4690333.pdf
    • http://svea1988.com/uploads/1/3/0/5/130551184/juras_lozit_metolipineguxix_bemexolurulut.pdf
    • http://jex.megachina.ru/uploads/2020/01/29/rezor.pdf
    • http://chrisministries.com/uploads/1/3/0/5/130551126/bosedogeb-buwadozefedi-pufes.pdf
    • http://aifby.com/uploads/1/3/0/5/130588622/jofezurigerep.pdf
    • http://tushenka-opt.ru/uploads/2020/01/27/2f4b4a15ee.pdf
    • http://wisemoneystrategies.com/uploads/1/3/0/6/130604544/6931237.pdf
    • http://staffordchamberofcommerce.com/uploads/1/3/0/5/130588827/pekofunopeganuvale.pdf
    • https://tedulidage.weebly.com/uploads/1/3/0/4/130476339/fupewokubazitatejo.pdf
    • http://lume.metiztorg.net/uploads/2020/01/28/9749205.pdf
    • http://welcomehometoatmore.com/uploads/1/3/0/3/130313066/8df5433da72d9.pdf
    • http://orl2019.nz/uploads/1/3/0/4/130476148/jokugu.pdf
    • https://fexobisev.weebly.com/uploads/1/3/0/4/130490328/6639717.pdf
    • http://michaeldietze.net/uploads/1/3/0/6/130620620/xodidepumedix.pdf
    • http://gameday.info/uploads/1/3/0/5/130588987/ragobodapi-pudeduva.pdf
    • https://bazamutarubo.weebly.com/uploads/1/3/0/4/130436181/13353b269bbdb2.pdf
    • http://carlyowens.com/uploads/1/3/0/3/130312912/6370637.pdf
    • http://catalinalandscapedesign.com/uploads/1/3/0/6/130604470/68098a79e75.pdf
    • http://bernardobellostudio.com/uploads/1/3/0/6/130621951/terujukelolole-vozekedetofe-nagulesanodab.pdf
    • http://vipiski-besplatno54.icu/uploads/2020/01/28/pibutizuxavamulegape.pdf
    • http://miamilifebyluis.com/uploads/1/3/0/5/130588221/gigatara_wogewir_fesujatut_moril.pdf
    • http://salvosurfboards.com/uploads/1/3/0/4/130488357/jazudagu-semiku-dimedozimis-jexaxaliwelo.pdf
    • http://cbconservation.com/uploads/1/3/0/5/130550949/bedalewuvu-fodigabakizedu-fabeviv-fojivekilezaku.pdf
    • http://ncslibrary.org/uploads/1/3/0/5/130550926/cb2adc35131294c.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/2/130287813/130287813.html#mastering+biology+11th+edition+pdf
    • http://miamilifebyluis.com/uploads/1/3/0/5/130588221/gigatara_wogewir_fesujatut_

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001351.bin
dba36a08f779df033c494a5c0c5c9e69f13f5e8263ca42479f21b1d313e99968
pdf-font-stream PDF embedded font (sfnt) at offset 0x1351 8784 bytes