Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc4a652bf61bf2a3…

MALICIOUS

PDF

40.4 KB Authoring application: Soda PDF
MD5: 28a11598728217053c2c2b28bd197aa8 SHA-1: b0a513b56ae818e167613d9c4b67cfa4f9315731 SHA-256: dc4a652bf61bf2a3202d39a446100c762d1b366b30d5b2c807cb4896f805368c
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs are the primary IOCs, likely leading to further malicious content or phishing pages.

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://cityglush3.icu/uploads/2020/01/27/wuwaguzuwemigaxobezu.pdf
    • http://sivataru.chelny-master.ru/uploads/2020/01/27/ef92d3c67.pdf
    • http://viewmic.com/uploads/1/3/0/3/130379843/c5865e48.pdf
    • http://kel.fucoidan.fun/uploads/2020/01/27/786836.pdf
    • https://tapesidenu.weebly.com/uploads/1/3/0/5/130543656/vetuvilasunuxu.pdf
    • http://pennington-automotive.com/uploads/1/3/0/6/130621654/e28326a06b9304.pdf
    • https://lojesaliget.weebly.com/uploads/1/3/0/4/130483973/sugudixu_betiduvunodejo_fuxigametimiva_wewapafe.pdf
    • http://tuludived.smartbitrix.ru/uploads/2020/01/27/bda900f1fcf1a0.pdf
    • http://tuvunuda.veronicaasorey.com/uploads/2020/01/29/tinoluwosawamil_jukudifot_jepevusujiwogi.pdf
    • http://ltdhelp.ca/uploads/1/3/0/6/130622036/roseropepuwak.pdf
    • http://absoluteventoparty.com/uploads/1/3/0/4/130478314/5dfc721efc7ca22.pdf
    • https://nokaforegitulo.weebly.com/uploads/1/3/0/5/130550696/darofe.pdf
    • http://zake.reserve-money.top/uploads/2020/01/28/630e6d.pdf
    • http://cascadeskarate.com/uploads/1/3/0/6/130621457/bejuxer-vazoxepijitob-gavito.pdf
    • https://mopufojitapiwi.weebly.com/uploads/1/3/0/5/130589309/wonavenakorojo.pdf
    • http://thetrainingyogi.com/uploads/1/3/0/5/130543320/kuzetog_xigeb_zewufu_japoxasaja.pdf
    • http://pandora-sales.ru/uploads/2020/01/28/jelexogovodokifik.pdf
    • http://adelightllc.com/uploads/1/3/0/5/130540214/fiziw-xizilezisule.pdf
    • http://zidud.dutrocheff.com/uploads/2020/01/28/degeluxubovizas.pdf
    • http://acsnutritionfitness.com/uploads/1/3/0/4/130488888/130488888.html#boxing+gym+training+studio

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001789.bin
71776eb61fd83283d4b8c9c2a0082550e08eb914c775b68c467a0986e677ba04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1789 8928 bytes

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