Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae64e5a7b56a35d2…

MALICIOUS

PDF

38.3 KB Created: 2020-05-13 06:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 236d08d3eb41b0c0500a8ce57af58158 SHA-1: 5cd6245460425ff0d0ad2706eb0d9ed19c580880 SHA-256: ae64e5a7b56a35d2875a10fbdcd5a81b43e074184f4e40d265e9010aa1c87151
72 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains URLs that appear to be part of this link farm. The presence of a 'download button' lure further suggests a malicious intent to redirect users to potentially harmful content hosted on these external domains. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bimaservices.net/uploads/1/3/0/8/130813478/130813478.html#arnold+chiari+malformation+type+1+life+expectancy
    • http://mindfulnesswithmartha.com/uploads/1/3/0/7/130740212/3dd8f62d.pdf
    • http://garretthobba.com/uploads/1/3/0/9/130970009/1588764.pdf
    • http://ventrallearning.com/uploads/1/3/0/7/130776498/9175353.pdf
    • http://teamrodriguezrentals.com/uploads/1/3/1/0/131070529/munafowesazolote.pdf
    • http://rotterdam-mindfulness.info/uploads/1/3/0/7/130739454/1279677.pdf
    • http://infinitegesture.com/uploads/1/3/0/5/130590689/5299040.pdf
    • http://intentio-editing.com/uploads/1/3/0/4/130478819/vijukuma.pdf
    • http://sanfrancisco-winetours.com/uploads/1/3/0/7/130739558/8791600.pdf
    • http://hempfulcolorado.com/uploads/1/3/1/4/131483234/3855125.pdf
    • http://johnnyallentennisacademy.com/uploads/1/3/1/6/131606366/jirimatopat_patexepugadi_gepuxudivi_guzadabulipoj.pdf
    • http://cartwheelsandpinwheels.com/uploads/1/3/1/6/131606392/5790689.pdf
    • http://chirecjmun2019.com/uploads/1/3/0/8/130873718/raliwujovisaja.pdf
    • http://tcleaning.net/uploads/1/3/0/8/130813077/2cf1329d0ddd40.pdf
    • http://baltimoreemergencyplumber.com/uploads/1/3/0/6/130620670/807cc109.pdf
    • http://smbprojects.org/uploads/1/3/0/6/130640024/jogozilixaj.pdf
    • http://tecates.com/uploads/1/3/0/8/130813320/7480d9b397b60.pdf
    • http://mareview.ca/uploads/1/3/0/6/130604027/wotaxotu.pdf
    • http://dchapa.com/uploads/1/3/1/0/131070456/bulede-jesokimef-nodibera-viweligami.pdf
    • http://lgdans.com/uploads/1/3/0/6/130639087/nenogorofe-rasorubuzavutix-pewifukonasuz-zavusiwududuxob.pdf
    • http://terraweelz.com/uploads/1/3/0/2/130289365/e90787b599c717a.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ba.bin
ee49831fab936a7b74a412c7bacd5efaed3f06a1462d528634bea165f96e6576
pdf-font-stream PDF embedded font (sfnt) at offset 0x69BA 10276 bytes